BARRETT BUSINESS SERVICES, INC.

                          -----------------------------

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                                  May 12, 2005

                          -----------------------------

            You are  invited  to attend the annual  meeting of  stockholders  of
Barrett  Business  Services,  Inc., to be held at the University Club located at
1225 S.W. Sixth Avenue,  Portland,  Oregon 97204, on Thursday,  May 12, 2005, at
2:00 p.m., Pacific Time.

            Only  stockholders  of record at the close of  business on March 25,
2005, will be entitled to vote at the meeting.

            The meeting is being held to consider and act upon the following
matters:

            1. Election of directors.

            2. Such other  business as may  properly  come before the meeting or
any adjournments thereof.

            Please sign and date the accompanying  proxy, and return it promptly
in  the  enclosed   postage-paid  envelope  to  avoid  the  expense  of  further
solicitation.  If you attend the meeting,  you may withdraw  your proxy and vote
your shares in person.

                                    By Order of the Board of Directors

                                    /s/ Michael D. Mulholland
                                    -------------------------
                                    Michael D. Mulholland
                                    Secretary

Portland, Oregon
April 12, 2005





                         BARRETT BUSINESS SERVICES, INC.
                            4724 S.W. Macadam Avenue
                             Portland, Oregon 97239
                                 (503) 220-0988



                                 PROXY STATEMENT
                       2005 ANNUAL MEETING OF STOCKHOLDERS



            This  proxy   statement  is  furnished   in   connection   with  the
solicitation  of  proxies by the Board of  Directors  (the  "Board")  of Barrett
Business  Services,  Inc. (the "Company"),  to be voted at the annual meeting of
stockholders to be held on May 12, 2005, and any adjournments thereof. The proxy
statement and  accompanying  form of proxy were first mailed to  stockholders on
approximately April 12, 2005.

                 VOTING, REVOCATION, AND SOLICITATION OF PROXIES

            When a proxy  in the  accompanying  form is  properly  executed  and
returned, the shares represented will be voted at the meeting in accordance with
the  instructions  specified  in  the  spaces  provided  in  the  proxy.  If  no
instructions  are  specified,  the  shares  will  be  voted  FOR  Item  1 in the
accompanying Notice of Annual Meeting of Stockholders.

            Any proxy given pursuant to this  solicitation may be revoked by the
person  giving the proxy at any time prior to its exercise by written  notice to
the Secretary of the Company of such revocation, by a later-dated proxy received
by the Company,  or by attending  the meeting and voting in person.  The mailing
address  of the  Company's  principal  executive  offices  is 4724 S.W.  Macadam
Avenue, Portland, Oregon 97239.

            The  solicitation  of proxies will be made  primarily  by mail,  but
proxies  may also be  solicited  personally  or by  telephone  or  facsimile  by
directors and officers of the Company without  additional  compensation for such
services.  Brokers and other persons  holding  shares in their names,  or in the
names  of  nominees,  will  be  reimbursed  for  their  reasonable  expenses  in
forwarding   soliciting   materials  to  their   principals   and  in  obtaining
authorization for the execution of proxies. All costs of solicitation of proxies
will be borne by the Company.

                          OUTSTANDING VOTING SECURITIES

            The close of  business  on March  25,  2005,  has been  fixed as the
record date for the  determination of stockholders  entitled to notice of and to
vote at the annual  meeting.  On the record  date,  the Company had  outstanding
5,810,254 shares of Common Stock, $.01 par value ("Common Stock"), each share of
which  is  entitled  to one  vote  at the  meeting.  Common  Stock  is the  only
outstanding voting security of the Company. The presence, in person or by proxy,
of stockholders  entitled to cast a majority of all votes entitled to be cast at
the meeting is required to constitute a quorum.

                                      -1-




                         ITEM 1 - ELECTION OF DIRECTORS

            The  directors  of the Company are elected at the annual  meeting of
stockholders  in May to serve  until the next  annual  meeting  and until  their
successors are elected and qualified.  The Company's  Bylaws authorize the Board
to set the number of  positions  on the Board  within a range of three and nine;
the Board has presently established the number of positions at six. Vacancies on
the Board,  including  vacancies  resulting  from an  increase  in the number of
positions,  may be filled by the Board for a term  ending  with the next  annual
meeting of stockholders.

            All of the nominees  for  election as  directors  are members of the
present Board.  Mr. Justesen was appointed to the Board  effective  December 15,
2004,  to fill the  vacancy  created  by the  resignation  of  Fores J.  Beaudry
effective June 21, 2004. Mr. Justesen was recommended to the Board's  Nominating
Committee as a potential  candidate  for election as a director by the Company's
chief  executive  officer.  He was then evaluated by the  Nominating  Committee,
which recommended to the Board that he be appointed as a director.

            A nominee will be elected if the nominee receives a plurality of the
votes cast by the  shares  entitled  to vote in the  election,  provided  that a
quorum is present at the meeting.  A duly  executed  proxy will be voted FOR the
election of the nominees named below, unless authority to vote for a director is
withheld or a proxy of a broker or other  nominee is expressly not voted on this
item. If for some  unforeseen  reason a nominee  should become  unavailable  for
election, the number of directors constituting the Board may be reduced prior to
the annual meeting or the proxy may be voted for the election of such substitute
nominee as may be designated by the Board.

            The  following  table sets forth  information  with  respect to each
person nominated for election as a director, including their ages as of February
28, 2005,  business  experience during the past five years, and directorships in
other corporations.

                                                                        Director
Name                  Principal Occupation(1)                      Age   Since
----                  -----------------------                      ---    -----
Thomas J. Carley      Private investor                              46    2000

James B. Hicks, Ph.D. Co-founder, director, and Chief Technology    58    2001
                      Officer of Virogenomics, Inc., a
                      biotechnology company

Jon L. Justesen       Co-owner and Chief Executive Officer of       53    2004
                      Justesen Ranches located in eastern Oregon

Anthony Meeker        Retired Managing Director of Victory Capital  65    1993
                      Management, Inc., Cleveland, Ohio, an
                      investment management firm

Nancy B. Sherertz     Private investor                              55    1998

William W. Sherertz   President and Chief Executive Officer of the  59    1980
                      Company


                                      -2-




-------

(1)   During the past five years,  the principal  occupation  and other business
      experience of each nominee has been as follows:

      (a)   Mr.  Carley  was  President  and Chief  Financial  Officer of Jensen
            Securities,  a securities and  investment  banking firm in Portland,
            Oregon,  for eight years until February  1998,  when the company was
            sold to D.A.  Davidson & Co.  Thereafter,  he was a research analyst
            covering  technology  companies and financial  institutions  at D.A.
            Davidson & Co. until December 1999.

      (b)   Dr. Hicks is a co-founder  of  Virogenomics,  Inc., a  biotechnology
            company,  located in the Portland  metropolitan  area,  where he has
            been Chief Technology  Officer since 2001 and a director since 1997.
            He has also been a director of AVI BioPharma,  Inc.,  since 1997. He
            is a partner  in HHL  Consulting  LLC,  where he has been  providing
            consulting  services to early stage technology  companies  regarding
            management and operational  issues since 2000. From 1995 to 1999, he
            was co-founder and technical  consultant for Sapient Health Network.
            He  also  currently  continues  to  serve  as  President  of  Hedral
            Therapeutics,  Inc.,  a  biotechnology  company,  where he was Chief
            Executive Officer, Chief Scientist and a director from 1994 to 1998.

      (c)   Mr.  Justesen has managed  Justesen  Ranches in eastern Oregon since
            1970. He also serves as President of Buck Hollow Ranch, Inc., and is
            a private investor.

      (d)   Mr. Meeker retired in 2003 as a Managing Director of Victory Capital
            Management,  Inc.  (formerly  known as Key Asset  Management,  Inc.)
            where he was employed for ten years.  Mr.  Meeker is Chairman of the
            Board of First Federal  Savings and Loan  Association of McMinnville
            and a director  of Oregon  Mutual  Insurance  Company.  From 1987 to
            1993, he was Treasurer of the State of Oregon.

      (e)   Ms.  Sherertz was  President and a director of the Company from 1975
            to March 1993.

      (f)   Mr. Sherertz also serves as Chairman of the Board of Directors.

Ms. Sherertz and Mr. Sherertz were married to each other until 1994.

                MEETINGS AND COMMITTEES OF THE BOARD OF DIRECTORS

            The Board held four  meetings in 2004.  During 2004,  each  director
attended  at least 75 percent of the total  number of the  meetings of the Board
and the meetings  held by each  committee of the Board on which he or she served
during his or her tenure on such committee or the Board.

                                      -3-



            The Company does not have a policy regarding  directors'  attendance
at the Company's annual meeting of stockholders.  All Board members,  except for
Ms. Sherertz and Dr. Hicks, attended last year's annual meeting.

            The Board has determined that Messrs.  Carley, Hicks,  Justesen, and
Meeker are independent  directors as defined in Rule  4200(a)(15) of the listing
standards applicable to companies quoted on The Nasdaq Stock Market.

Audit and Compliance Committee

            The Audit and Compliance  Committee (the "Audit Committee")  reviews
and pre-approves audit and legally-permitted  non-audit services provided by the
Company's  independent  registered  public  accounting  firm  (the  "independent
auditors"),  makes  decisions  concerning  the  engagement  or  discharge of the
independent  auditors,  and reviews with management and the independent auditors
the results of their audit, the adequacy of internal  accounting  controls,  and
the quality of  financial  reporting.  The Audit  Committee  also  develops  and
oversees the Company's corporate governance principles and the Company's Code of
Business  Conduct and Code of Ethics for Senior  Financial  Officers.  The Audit
Committee held seven meetings in 2004.

            The  current  members  of the Audit  Committee  are  Messrs.  Carley
(chair),  Hicks, and Meeker. Mr. Beaudry served on the Audit Committee until his
resignation  from the Board  effective  June 21, 2004.  The Board has determined
that Thomas J. Carley is qualified to be an "audit committee  financial  expert"
as  defined  by  the  Securities  and  Exchange  Commission  ("SEC")  under  the
Securities  Exchange  Act of 1934  (the  "Exchange  Act").  The  Board  has also
determined that each member of the Audit Committee,  including Mr. Carley, meets
the  financial  literacy  and  independence  requirements  for  audit  committee
membership  specified in applicable  rules of the SEC under the Exchange Act and
in listing standards  applicable to companies quoted on The Nasdaq Stock Market.
The Audit  Committee's  activities are governed by a written charter,  which was
amended and  restated by the Board as of March 19,  2004.  A copy of the amended
and   restated   charter   is   available   on   the   Company's    website   at
www.barrettbusiness.com.

Compensation Committee

            The  Compensation  Committee  reviews the  compensation of executive
officers of the Company and makes  recommendations to the Board regarding salary
levels  and  other  forms  of  compensation  to be paid to  executive  officers,
including  decisions as to grants of options and other stock-based  awards.  The
current  members of the  Compensation  Committee are Messrs.  Meeker (chair) and
Hicks. Ms. Sherertz served on the  Compensation  Committee until her resignation
from the committee  effective March 18, 2005, but she did not participate in the
Compensation Committee's deliberations regarding stock options. The Compensation
Committee held three meetings in 2004.

Compensation Committee Interlocks and Insider Participation

            Messrs. Meeker and Hicks and Ms. Sherertz comprised the Compensation
Committee  throughout  2004. Ms. Sherertz was President of the Company from 1975
to March 1993.

                                      -4-




Nominating Committee

            The Nominating  Committee  evaluates and  recommends  candidates for
nomination by the Board in director elections and otherwise assists the Board in
determining and evaluating the composition of the Board and its committees.  The
Nominating  Committee also assists in identifying  candidates for appointment as
officers of the Corporation. The current members of the Nominating Committee are
Messrs.  Carley,  Hicks (chair),  and Meeker. The Nominating  Committee held one
meeting in 2004.

            The Board has determined  that each current member of the Nominating
Committee  is an  independent  director  as defined in Rule  4200(a)(15)  of the
listing standards applicable to companies quoted on The Nasdaq Stock Market. The
Nominating Committee is governed by a written charter, which is available on the
Company's website at www.barrettbusiness.com.

            The  Nominating  Committee  does  not  have  any  specific,  minimum
qualifications  for  director  candidates.   In  evaluating  potential  director
nominees, the Nominating Committee will consider:

            *     The  candidate's  ability  to  commit  sufficient  time to the
                  position;

            *     Professional  and  educational  background that is relevant to
                  the financial,  regulatory,  and business environment in which
                  the Company operates;

            *     Demonstration of ethical behavior;

            *     Whether  the  candidate  contributes  to the goal of  bringing
                  diverse  perspectives,  business experience,  and expertise to
                  the Company's Board; and

            *     The  need to  satisfy  independence  and  financial  expertise
                  requirements relating to Board composition.

            The Nominating  Committee relies on its periodic  evaluations of the
Board in determining  whether to recommend  nomination of current  directors for
re-election.  In the event the Nominating  Committee is required to identify new
director candidates, because of a vacancy or a decision to expand the Board, the
Nominating Committee will poll current directors for suggested  candidates.  The
Nominating  Committee has not hired a third-party  search firm to date,  but has
the authority to do so if it deems such action to be appropriate.

            Once potential  candidates are identified,  the Nominating Committee
will conduct interviews with the candidates and perform such investigations into
the candidates' background as the Nominating Committee determines appropriate.

            The Nominating Committee will consider director candidates suggested
by stockholders for nomination by the Board.  Stockholders  wishing to suggest a
candidate to the Nominating  Committee  should do so by sending the  candidate's
name,  biographical  information,  and qualifications  to: Nominating  Committee
Chair c/o Michael D. Mulholland,  Secretary,  Barrett Business  Services,  Inc.,
4724 S.W.  Macadam  Avenue,  Portland,  Oregon  97239.

                                      -5-




Candidates  suggested by stockholders will be evaluated by the same criteria and
process as candidates from other sources.

                                 CODE OF ETHICS

            The  Company  has  adopted a Code of  Ethics  for  Senior  Financial
Officers  ("Code  of  Ethics"),  which  is  applicable  to the  Company's  Chief
Executive  Officer,   principal  financial  officer,  and  principal  accounting
officer.  The Code of Ethics focuses on honest and ethical conduct, the adequacy
of  disclosure  in  financial  reports  of  the  Company,  and  compliance  with
applicable laws and  regulations.  The Code of Ethics is included as part of the
Company's Code of Business Conduct,  which is generally applicable to all of the
Company's directors,  officers, and employees.  The Code of Business Conduct and
Code of Ethics for Senior  Financial  Officers  is  available  on the  Company's
website at www.barrettbusiness.com.

                    STOCK OWNERSHIP BY PRINCIPAL STOCKHOLDERS
                                 AND MANAGEMENT

Beneficial Ownership Table

            The  following  table gives  information  regarding  the  beneficial
ownership of Common Stock as of March 25, 2005, by each director and nominee for
director and certain named executive officers and by all directors and executive
officers of the Company as a group. In addition, it gives information about each
person or group  known to the  Company to own  beneficially  more than 5% of the
outstanding shares of Common Stock. Information as to beneficial stock ownership
is based on data furnished by the stockholder.  Unless otherwise indicated,  all
shares listed as  beneficially  owned are held with sole voting and  dispositive
powers.

                                                 Amount and Nature    Percent
                                                   of Beneficial         of
Name of Beneficial Owner                            Ownership(2)       Class
------------------------                            ------------       -----
Heartland Advisors, Inc.(1)......................    689,840(3)        11.9%
Thomas J. Carley.................................     25,675              *
James B. Hicks, Ph.D.............................      6,375              *
Jon L. Justesen..................................     11,100              *
Anthony Meeker...................................      9,325              *
Michael D. Mulholland............................      2,563              *
Nancy B. Sherertz(1).............................  1,149,895(4)        19.8%
William W. Sherertz(1)...........................  1,904,139(5)        32.3%
Gregory R. Vaughn ...............................     36,665              *
All directors and executive officers as a group
(9 persons)......................................  3,156,737           53.0%

--------
 * Less than 1% of the outstanding shares of Common Stock.

(1)   The  addresses  of  persons  owning  beneficially  more  than  5%  of  the
      outstanding  Common Stock are as follows:  Heartland  Advisors,  Inc., 789
      North Water Street,  Milwaukee,

                                      -6-






      Wisconsin 53202;  Nancy B. Sherertz,  4724 S.W. Macadam Avenue,  Portland,
      Oregon 97239; and William W. Sherertz, 4724 S.W. Macadam Avenue, Portland,
      Oregon 97239.

(2)   Includes options to purchase Common Stock which are presently  exercisable
      or will become exercisable by May 24, 2005 as follows:  Mr. Carley,  2,875
      shares; Dr. Hicks, 1,375 shares; Mr. Meeker, 7,875 shares; Mr. Mulholland,
      2,063 shares; Ms. Sherertz, 5,875 shares; Mr. Sherertz, 85,134 shares; Mr.
      Vaughn,  35,665  shares;  and all directors  and  executive  officers as a
      group, 140,862 shares.

(3)   Heartland  Advisors,  Inc.,  a  registered  investment  advisor,  and  its
      President  and  principal  shareholder,  William  J.  Nasgovitz,  filed an
      amendment  to Schedule 13G on January 14, 2005,  reporting  shared  voting
      power as to  660,940  shares and  shared  dispositive  power as to 689,840
      shares (including the 660,940 shares).

(4)   Ms. Sherertz disclaims  beneficial ownership of an additional 3,310 shares
      held by her minor children.

(5)   Includes  9,167  shares  held by his wife and  31,300  shares  held by Mr.
      Sherertz  for his  minor  children,  as to  which  he  shares  voting  and
      dispositive powers.

Section 16(a) Beneficial Ownership Reporting Compliance

            Section 16 of the Exchange Act ("Section  16") requires that reports
of beneficial  ownership of Common Stock and changes in such  ownership be filed
with the SEC by Section 16 "reporting persons," including  directors,  executive
officers,  and certain holders of more than 10% of the outstanding Common Stock.
To the Company's knowledge,  all Section 16 reporting requirements applicable to
known reporting  persons were complied with for  transactions and stock holdings
during  2004,  except as  follows:  James B.  Hicks,  director,  one late filing
reporting one purchase;  Nancy B. Sherertz,  director and 10 percent owner,  two
late filings  reporting a total of three sales;  William W. Sherertz,  director,
officer and 10 percent owner,  one late filing  reporting one option grant;  and
Michael D. Mulholland and Gregory R. Vaughn, officers, each with one late filing
reporting one option grant.


           SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

            As of the date of this proxy statement,  the Audit Committee had not
yet selected an independent  registered  public  accounting  firm to examine the
financial  statements  of the Company for the fiscal  year ending  December  31,
2005. The Audit Committee and management are evaluating available  alternatives,
including  its  current   independent   registered   public   accounting   firm,
PricewaterhouseCoopers LLP.

            PricewaterhouseCoopers LLP were the Company's independent registered
public accounting firm for the year ended December 31, 2004. The Company expects
representatives of  PricewaterhouseCoopers  LLP to be present at the 2005 annual
meeting of stockholders and to be available to respond to appropriate questions.
They will have the opportunity to make a statement at the annual meeting if they
desire to do so.

                                      -7-




                             MATTERS RELATING TO OUR
                  INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Fees Paid to Principal Independent Registered Public Accounting Firm

            The  following  fees were billed by  PricewaterhouseCoopers  LLP for
professional services rendered to the Company in fiscal 2003 and 2004:

                                    2003                   2004
                                    ----                   ----
           Audit Fees(1)         $163,500(4)            $179,500
           Audit Related               --                     --
           Fees(2)
           Tax Fees(3)             54,000                 67,000
           All Other Fees              --                     --

-------------

(1)   Consists of fees for professional  services  rendered for the audit of the
      Company's  annual  financial  statements  for fiscal 2003 and 2004 and for
      review of financial  statements included in quarterly reports on Form 10-Q
      for those years.

(2)   Refers to assurance and related  services that are  reasonably  related to
      the audit or review of a company's  financial  statements and that are not
      included in audit fees.

(3)   Consists of services rendered in connection with income tax consulting and
      income tax return preparation.

(4)   Actual  audit fees paid for 2003 were  $25,500  higher  than the  $138,000
      estimated  for that period and reported in the Company's  proxy  statement
      for its 2004 annual meeting.

Pre-Approval Policy

            The Company has adopted a policy requiring pre-approval by the Audit
Committee  of all fees and  services  of the  Company's  independent  registered
public  accounting  firm (the  "independent  auditors"),  including  all  audit,
audit-related,  tax, and other legally-permitted  services.  Under the policy, a
detailed  description  of  each  proposed  service  is  submitted  to the  Audit
Committee jointly by the independent  auditors and the Company's Chief Financial
Officer,  together  with a statement  from the  independent  auditors  that such
services are consistent with the SEC's rules on auditor independence. The policy
permits the Audit Committee to pre-approve lists of audit,  audit-related,  tax,
and other legally-permitted  services. The maximum term of any preapproval is 12
months.  Additional  pre-approval  is required  for services not included in the
pre-approved  categories and for services exceeding pre-approved fee levels. The
policy allows the Audit Committee to delegate its pre-approval  authority to one
or more of its members provided that a full report of any pre-approval  decision
is provided to the full Audit Committee at its next scheduled meeting. All audit
and permissible  non-audit  services provided by  PricewaterhouseCoopers  LLP in
2004 were pre-approved by the Audit Committee.

                                      -8-





                             AUDIT COMMITTEE REPORT

            In discharging  its  responsibilities,  the Audit  Committee and its
individual  members have met with management and with the Company's  independent
registered    public    accounting    firm   (the    "independent    auditors"),
PricewaterhouseCoopers  LLP,  to review  their audit  process and the  Company's
accounting  functions.  The Committee  discussed and reviewed with the Company's
independent  auditors all matters that the independent auditors were required to
communicate and discuss with the Committee under applicable  auditing standards,
including those described in Statement on Auditing Standards No. 61, as amended,
regarding communications with audit committees. Committee members also discussed
and  reviewed  the  results  of the  independent  auditors'  examination  of the
financial  statements,  the  quality  and  adequacy  of the  Company's  internal
controls,  and issues relating to the independent  auditors'  independence.  The
Committee  has  obtained a formal  written  statement  relating to  independence
consistent  with  Independence  Standards  Board  Standard No. 1,  "Independence
Discussions with Audit Committees," and discussed with the independent  auditors
any relationships that may affect their objectivity and independence.

            Based  on  its  review  and  discussions  with  management  and  the
Company's  independent  auditors,  the Audit Committee  recommended to the Board
that the audited  financial  statements  for the fiscal year ended  December 31,
2004,  be included in the  Company's  Annual Report on Form 10-K for filing with
the SEC.

                                          AUDIT COMMITTEE

                                          Thomas J. Carley, Chair
                                          James B. Hicks, Ph.D.
                                          Anthony Meeker








                             EXECUTIVE COMPENSATION

Summary Compensation Table

            The following table sets forth  compensation for the years indicated
to the  Company's  chief  executive  officer and the Company's  other  executive
officers.




                           SUMMARY COMPENSATION TABLE
                                                                         Long-Term
                                                                        Compensation
                                           Annual Compensation             Awards
                                     ------------------------------    ------------

                                                          Other          Securities
                                                          Annual         Underlying    All Other
    Name and Principal               Salary     Bonus  Compensation        Options    Compensation
    Position                 Year      ($)        ($)     ($)(1)             (#)          ($)
    -----------------------  ----    ------     -----   -----------    -------------  ------------

                                                                     
    William W. Sherertz      2004  $241,667     $59,236   $151,567         18,440           --
    President and            2003   200,000      14,752     50,684         63,024           --
    Chief Executive Officer  2002   200,000          --     50,625        161,719      $56,461(2)

    Michael D. Mulholland    2004  $197,500     $48,410         --          8,048           --
    Vice President-Finance   2003   185,000      13,646         --         15,000           --
    And Secretary; Chief     2002   185,000          --         --         80,000           --
    Financial Officer

    Gregory R. Vaughn        2004  $165,000     $40,444         --          5,027           --
    Vice President           2003   150,000      11,064         --         15,000           --
    ------------             2002   150,000          --         --         45,000           --



 (1)  Amounts shown for Mr. Sherertz include $77,120,  $21,663,  and $21,630 for
      2004, 2003, and 2002,  respectively,  for  reimbursement of the payment of
      life insurance premiums and $62,447,  $17,021, and $16,995,  respectively,
      for reimbursement of Mr.  Sherertz's  personal income tax obligations with
      respect to the foregoing  amounts.  For 2003 and 2002,  these amounts have
      been  reclassified  from their  previous  classification  as annual bonus.
      Amounts for Mr. Sherertz also include an annual car allowance of $12,000.

(2)   Represents  the actual  dollar  amount of insurance  premiums  paid by the
      Company in 2002 as part of a split-dollar  life insurance plan provided to
      Mr.  Sherertz.  Mr.  Sherertz's  living trust is obligated to repay to the
      Company all of the premiums  that the Company has paid for this  insurance
      policy  from the death  benefits  collected  on the policy or, if earlier,
      within 60 days after (x) termination of Mr.  Sherertz's  employment by the
      Company,  other  than  by  reason  of  death,  or (y)  the  bankruptcy  or
      dissolution  of the Company.  Mr.  Sherertz's  split dollar life insurance
      arrangement with the Company was terminated in 2003 following enactment of
      the Sarbanes-Oxley Act of 2002.

                                      -10-





Stock Option Data for Executive Officers

            The following  table provides  information as to options to purchase
Common Stock granted under the Company's 2003 Stock  Incentive Plan to the named
executive officers during 2004.

                        OPTION GRANTS IN LAST FISCAL YEAR
                                INDIVIDUAL GRANTS

                  Number of    % of Total
                  Securities    Options
                  Underlying   Granted to
                   Options     Employees   Exercise                 Grant Date
                  Granted(1)   in Fiscal   Price      Expiration      Present
Name                 (#)          Year     ($/Share)     Date       Value ($)(2)
----              ---------    ----------  ---------  ----------     -----------

William W.           18,440      47.2%     $ 13.91     3/04/2014    $137,194
Sherertz

Michael D.            8,048      20.6        13.91     3/04/2014      59,877
Mulholland

Gregory R.            5,027      12.9        13.91     3/04/2014      37,401
Vaughn

------------

(1)   Options  generally  become  exercisable  cumulatively in four equal annual
      installments beginning one year after the date of grant; provided that the
      option  will  become   exercisable  in  full  upon  the  officer's  death,
      disability  or  retirement,  or in the event of a change in control of the
      Company.  A change in  control is  defined  in the  option  agreements  to
      include (i) any occurrence  which would be required to be reported as such
      by the proxy disclosure rules of the SEC, (ii) the acquisition by a person
      or group (other than the Company or one of its employee  benefit plans) of
      30% or more of the combined voting power of its voting  securities,  (iii)
      with certain  exceptions,  the existing directors' ceasing to constitute a
      majority of the Board,  (iv) certain  transactions  involving  the merger,
      sale,  or  transfer  of a majority  of the assets of the  Company,  or (v)
      approval by the  stockholders  of a plan of  liquidation or dissolution of
      the Company.  The options include a feature which entitles an optionee who
      tenders  previously-acquired  shares of Common Stock to pay all or part of
      the exercise  price of the option,  to be granted a replacement  option (a
      "reload  option")  to  purchase a number of shares  equal to the number of
      shares  tendered with an exercise  price equal to the fair market value of
      the Common Stock on the date of grant. No SARs were granted by the Company
      during 2004.

(2)   The values shown have been calculated  based on the  Black-Scholes  option
      pricing  model  and  do  not  reflect  the  effect  of   restrictions   on
      transferability  or  vesting.  The  values  were  calculated  based on the
      following  assumptions:  (i) expectations regarding volatility of

                                      -11-




      61% were  based on monthly  stock  price  data for the  Company;  (ii) the
      risk-free  rate of return (3.63%) was assumed to be the Treasury Bond rate
      whose maturity  corresponds to the expected term (5.0 years) of the option
      granted;  and (iii) no  dividends  on the Common Stock will be paid during
      the option term.  The values which may  ultimately be realized will depend
      on the market value of the Common  Stock  during the periods  during which
      the  options  are  exercisable,  which  may  vary  significantly  from the
      assumptions underlying the Black-Scholes model.

            Information  concerning  exercises of stock options  during 2004 and
the  value of  unexercised  options  held by the  named  executive  officers  at
December 31, 2004, is summarized in the table below.




                              AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR
                                  AND FISCAL YEAR-END OPTION VALUES(1)

                                                 Number of Securities           Value of Unexercised
                  Shares                        Underlying Unexercised         In-the-Money Options at
                Acquired on     Value       Options at Fiscal Year-End (#)        Fiscal Year-End(2)
     Name       Exercise (#)  Realized ($)    (Exercisable/Unexercisable)     (Exercisable/Unexercisable)
     ----       ------------  ------------  ------------------------------    ---------------------------
                                                                            
William W.           --          --            68,024 / 158,440                 $576,475 / $1,477,675
Sherertz

Michael D.       23,000    $247,675            24,327 /  62,824                  262,783 /    590,248
Mulholland

Gregory R.           --          --            32,369 /  40,817                  346,333 /    385,748
Vaughn
-----------------



(1)   The named executive officers did not hold any SARs at December 31, 2004.

(2)   The values  shown have been  calculated  based on the last  reported  sale
      price, $13.82, of the Common Stock reported on the National Market tier of
      The Nasdaq Stock Market on December 31, 2004,  and the per share  exercise
      price of unexercised in-the-money options.

Additional Equity Compensation Plan Information

            The following table summarizes  information  regarding shares of the
Company's  Common Stock that may be issued upon  exercise of options,  warrants,
and  rights  under  the  Company's   existing  equity   compensation  plans  and
arrangements  as of December 31, 2004. The only plan or arrangement  under which
equity  compensation  could be awarded at December 31, 2004,  was the  Company's
2003 Stock  Incentive Plan,  including a related plan for California  residents,
which was approved by stockholders in May 2003.  Prior to 2003,  grants of stock
options were made under the Company's 1993 Stock Incentive Plan,  which had been
approved by stockholders.  The information includes the number of shares covered
by, and the weighted average exercise price of, outstanding  options,  warrants,
and other rights under both plans, and the number of shares remaining  available
for future grants excluding the shares to be issued upon exercise of outstanding
options.

                                      -12-







                       A. Number of                              C. Number of securities
                     securities to be       B. Weighted-          remaining available for
                   issued upon exercise    average exercise     future issuance under equity
                      of outstanding     price of outstanding        compensation plans
                    options, warrants,    options, warrants,       (excluding securities
   Plan Category       and  rights           and rights            reflected in  column A)
   -------------       -----------           ----------            -----------------------

                                                                   
Equity compensation
plans approved by
stockholders              578,069              $4.48                        218,070

Equity compensation
plans or arrangements
not approved by
stockholders                    0                N/A                              0
                          -------              -----                        -------
      Total               578,069              $4.48                        218,070
                          =======              =====                        =======



Directors' Compensation

            Beginning  May 1, 2004,  directors  (other  than  directors  who are
full-time  employees of the  Company,  who do not receive  directors'  fees) are
entitled  to receive an annual  retainer  of $12,000  payable in cash in monthly
installments of $1,000.

            On May 12, 2004, each then non-employee  director received an option
for 2,500 shares of Common Stock at an exercise  price of $13.23 per share,  the
fair market value on the date of grant.  Under the terms of the  Company's  2003
Stock Incentive Plan, each non-employee director who is elected or re-elected as
a director at the annual meeting of  stockholders  is  automatically  granted an
option for 1,000 shares of Common Stock on the meeting date at an exercise price
equal to the fair market  value of the Common  Stock on that date.  Beginning in
May 2004, the Board approved the grant of options for an additional 1,500 shares
concurrent with the automatic annual grant.

            Payment of the  exercise  price of options  granted to  non-employee
directors may be in cash or in previously-acquired  shares of Common Stock. Each
option  includes a reload option feature to the extent that  previously-acquired
shares are used to pay the exercise price.  Non-employee director options (other
than  reload  options)  become  exercisable  in four equal  annual  installments
beginning one year after the date of grant.  Reload options  become  exercisable
six months  following the date of grant.  All options  granted to a non-employee
director will be exercisable in full upon the director's death,  disability,  or
retirement,  or in the event of a change in control of the  Company.  The option
term will expire three months following the date upon which the holder ceases to
be a director other than by reason of death, disability,  or retirement;  in the
event of death or disability, the option will expire one year thereafter; in the
event of retirement, the option will expire five years thereafter.

                                      -13-




Employment Agreement

            Effective  January 26, 1999, the Company  entered into an employment
agreement with Michael D. Mulholland,  Vice  President-Finance  and Secretary of
the Company.  The agreement provides for a term of not less than two years as of
each anniversary date of the agreement and is subject to automatic extension for
an  additional  year  annually  unless  either  party  notifies  the other of an
election to terminate  the  agreement  by December 27 of the prior year.  In the
event of a change in  control  of the  Company,  the  agreement  will be renewed
automatically for a two-year period beginning with the day immediately preceding
the change in control. The employment agreement provides for an annual salary of
not less than  $155,000,  subject to annual  review by the Board,  together with
other  compensation  and  benefits  provided for in the  Company's  compensation
policy for executive officers adopted in 1995.

            Pursuant to the employment agreement, if Mr. Mulholland's employment
is terminated by the Company  following a change in control of the Company other
than by reason of death or disability or for cause, or by Mr.  Mulholland within
90 days  following  a change in duties  related  to a change in  control  of the
Company, he will be entitled to receive a lump sum payment of an amount equal to
two times his  then-current  annual base  salary,  subject to  reduction  to the
extent that such  amount  would be subject to the excise tax imposed on benefits
that  constitute  excess  parachute  payments under Section 280G of the Internal
Revenue Code of 1986, as amended.

            A change in control of the  Company for  purposes of the  employment
agreement is defined as  summarized in the notes to the first table under "Stock
Option Data for Executive  Officers"  above,  except for a business  combination
transaction in which the Company becomes a privately-held company and William W.
Sherertz  continues as President and Chief Executive Officer. A change in duties
includes  a  significant  change  in the  nature  or scope  of Mr.  Mulholland's
position,  responsibilities,  authorities or duties, a significant diminution in
his  eligibility to participate in compensation  plans or benefits,  a change in
the location of his employment by more than 30 miles, or a significant violation
of the Company's obligations under the agreement.

                      REPORT OF THE COMPENSATION COMMITTEE
                            ON EXECUTIVE COMPENSATION

            The  Compensation   Committee's  goal  in  recommending   levels  of
executive  compensation is to serve the interests of the Company's  stockholders
by  enabling  the  Company to  attract,  motivate,  and  retain  the  caliber of
management  expertise  necessary for successful  implementation of the Company's
strategic goals.

            Towards  this  goal,  the  Compensation   Committee  has  adopted  a
philosophy  that combines  goal-driven  annual cash  compensation  packages with
equity incentives  designed to build stock ownership among key employees.  These
two key  principles  serve  to align  executives  effectively  with  stockholder
interests  by  focusing  management  on  financial  goals  necessary  to enhance
stockholder  value,  as  well  as  long-term  growth,  by  strongly  encouraging
significant ownership in the Company's stock.

                                      -14-




            Salaries.  Base  salaries for the Company's  executive  officers are
initially  determined by evaluating the responsibilities of the position and the
experience of the individual,  and by reference to the  competitive  marketplace
for management  talent.  Annual salary  adjustments are determined by evaluating
the competitive marketplace,  the performance of the Company, the performance of
the  executive,   particularly   with  respect  to  the  individual's   specific
contribution  to the  Company's  success,  and  any  increased  responsibilities
assumed by the executive.  In light of these factors, the Compensation Committee
determined  to increase  the annual  salary  levels of the  Company's  executive
officers as follows: Mr. Sherertz, a 25% increase to $250,000 effective March 1,
2004; Mr. Mulholland,  an 8.1% increase to $200,000 effective March 1, 2004; and
Mr. Vaughn, a 10% increase to $165,000 effective January 1, 2004.

            Annual  Cash  Incentive  Bonuses.  The  Compensation  Committee  has
implemented a policy of providing annual cash incentive bonuses to the executive
officers of the  Company.  It is the  Compensation  Committee's  belief that the
stewardship provided by the executive officers is best measured by the Company's
return  on  equity.  Accordingly,  target  amounts  for  annual  awards  of cash
incentive  bonuses  for 2004 were based  upon a formula  with  reference  to the
Company's return on  stockholders'  equity for the year ended December 31, 2004,
and each executive's total salary for the year. Based on the Company's return on
equity of 24.51% for 2004, each executive officer, including the chief executive
officer, was awarded an annual cash incentive bonus in an amount equal to 24.51%
of his actual salary paid in 2004.

            Long-Term  Incentive  Compensation.  The  Company  strives  to align
executive officer financial  interests with long-term  stockholder value through
stock option  grants.  See "Option Grants in Last Fiscal Year" above for details
of options granted to the named executive officers in 2004.

                                      COMPENSATION COMMITTEE

                                      Anthony Meeker, Chair
                                      James B. Hicks, Ph.D.
                                      Nancy B. Sherertz (through March 18, 2005)


                                      -15-




                             STOCK PERFORMANCE GRAPH

            The graph on the following page shows the cumulative total return at
the dates  indicated for the period from December 31, 1999,  until  December 31,
2004,  for the Common  Stock,  the  Standard & Poor's 500 Stock  Index (the "S&P
500"), and a group of the Company's  current peers in the staffing industry (the
"2005 Peer Group"). The 2005 Peer Group is comprised of the same eight companies
included  in the peer group used to prepare the  performance  graph set forth in
the company's proxy statement for its annual meeting in May 2004.

            The stock performance graph has been prepared assuming that $100 was
invested on December 31, 1999,  in the Common  Stock,  the S&P 500, and the 2005
Peer Group,  and that  dividends are  reinvested.  In accordance  with the SEC's
proxy  rules,  the  stockholder  return for each  company in the 2005 Peer Group
indices  has been  weighted  on the  basis of  market  capitalization  as of the
beginning of each annual period shown. The stock price performance  reflected in
the graph may not be indicative of future price performance.






                                      -16-





                Comparison of Five-Year Cumulative Total Returns
                             Performance Graph for
                        Barrett Business Services, Inc.

              Produced on 03/24/2005 including data to 12/31/2004

                                [GRAPHIC OMITTED]




--------------------------------------------------------------------------------
                                     Legend

CRSP Total Returns Index for:                12/1999  12/2000  12/2001  12/2002  12/2003  12/2004
-----------------------------                -------  -------  -------  -------  -------  -------

                                                                          
Barrett Business Services, Inc.               100.00     53.8     55.8     49.7    195.9    208.6
S&P 500 Stocks                                100.00     91.2     80.4     62.6     80.6     89.5
Self-Determined Peer Group                    100.00    126.9    124.7     93.9    139.5    151.8



Companies in the Self-Determined Peer Group
   ADMINISTAFF INC                              C D I CORP
   GEVITY H R INC                               KELLY SERVICES INC
   MANPOWER INC WIS                             REMEDYTEMP INC
   ROBERT HALF INTERNATIONAL INC                WESTAFF INC



Notes:
   A.  The lines represent  monthly index levels derived from  compounded  daily
       returns that include all dividends.
   B.  The indexes are reweighted daily, using the market  capitalization on the
       previous day.
   C.  If the monthly interval,  based on the fiscal year-end,  is not a trading
       day, the preceding trading day is used.
   D.  The index level for all series was set to $100.0 on 12/31/1999.
--------------------------------------------------------------------------------

       Prepared by CRSP (www.crsp.uchicago.edu), Center for Research in Security
       Price, Graduate School of Business,  The University of Chicago. Used with
       permission. All rights reserved.                        (c)Copyright 2005


                                      -17-




                          TRANSACTIONS WITH MANAGEMENT

            In  December  2001,  pursuant to the  approval of all  disinterested
outside directors, the Company agreed to loan Mr. Sherertz up to $60,000 between
December  2001 and June 2002 to assist Mr.  Sherertz in meeting his debt service
obligations on a loan from the Company's  principal  bank,  which was secured by
Mr. Sherertz's  holdings of Common Stock and provided for quarterly  payments of
interest  only.  In the spring of 2002,  with the approval of all  disinterested
outside directors, the Company agreed to extend its financial commitment to lend
to Mr. Sherertz amounts equal to an additional two quarterly  interest  payments
in July and September  2002. The Company's note  receivable was in the aggregate
principal  amount  of  $107,000  bearing  interest  at the same rate as the rate
charged to Mr.  Sherertz by the bank (prime less 50 basis points).  On August 2,
2004, Mr. Sherertz  delivered to the Company 8,095 shares of Common Stock with a
total  market  value of $136,274  in  satisfaction  of all amounts  owing to the
Company.  In accordance  with  applicable  law, no new loans will be made to Mr.
Sherertz under this or any other arrangement.

            Beginning  in October  2001,  the Company has rented Mr.  Sherertz's
personal residence in La Quinta, California, for marketing,  customer relations,
and business meeting  purposes.  The seasonal rental rates were established by a
local real estate broker who handles  similar  properties in the La Quinta area.
The Company made payments to Mr. Sherertz in the aggregate amount of $102,000 in
2004 for rental of the property.


                                  OTHER MATTERS

            Management  knows of no  matters  to be  brought  before  the annual
meeting other than the election of  directors.  However,  if any other  business
properly comes before the meeting, the persons named in the accompanying form of
proxy will vote or refrain  from voting on the matter in  accordance  with their
judgment pursuant to the discretionary authority given in the proxy.

                    STOCKHOLDER COMMUNICATIONS WITH THE BOARD

            Communications  by  stockholders to the Board should be submitted by
e-mail to  bod@bbsihq.com.  All  directors  have access to this e-mail  address.
Communications  to  individual  directors  or  committees  should be sent to the
attention of the intended  recipient.  The chair of the Audit  Committee will be
primarily  responsible  for  monitoring  e-mails to the Board (or its members or
committees) and for forwarding messages as appropriate.

            Stockholder  communications sent by regular mail to the attention of
the Board of  Directors  (or to  individual  directors  or  committees)  will be
forwarded as the chair of the Audit Committee deems appropriate.  Communications
will not be  forwarded  if they do not  appear  to be  within  the  scope of the
Board's (or such other intended  recipient's)  responsibilities or are otherwise
inappropriate or frivolous.

                                      -18-




                STOCKHOLDER PROPOSALS FOR ANNUAL MEETING IN 2005

            Stockholder proposals submitted for inclusion in the proxy materials
for the annual  meeting of  stockholders  to be held in 2006 must be received by
the Company by December 13, 2005. Any such proposal should comply with the SEC's
rules  governing   stockholder   proposals  submitted  for  inclusion  in  proxy
materials.  Proposals should be addressed to Michael D.  Mulholland,  Secretary,
Barrett  Business  Services,  Inc., 4724 S.W. Macadam Avenue,  Portland,  Oregon
97239.

            For any proposal  that is not submitted for inclusion in next year's
proxy  materials,  but  instead is sought to be  presented  directly at the 2006
annual meeting of  stockholders,  management will be able to vote proxies in its
discretion if the Company:  (1) receives notice of the proposal before the close
of business on February 26,  2006,  and advises  stockholders  in the 2006 proxy
materials  about the nature of the matter and how management  intends to vote on
such  matter;  or (2) has not  received  notice of the  proposal by the close of
business on February 26, 2006.  Notices of intention to present proposals at the
2006 annual meeting should be forwarded to the address listed above.

April 12, 2005                      BARRETT BUSINESS SERVICES, INC.





                                      -19-



                                      PROXY
                         BARRETT BUSINESS SERVICES, INC.
                  Annual Meeting of Stockholders--May 12, 2005
           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS



      The undersigned hereby appoints William W. Sherertz and Anthony Meeker as
proxies, each with power to act alone and with power of substitution, and hereby
authorizes them to represent and to vote, as provided on the reverse side, all
the shares of common stock of Barrett Business Services, Inc., which the
undersigned is entitled to vote, and, in their discretion, to vote upon such
other business as may properly come before the Annual Meeting of Stockholders to
be held on Thursday, May 12, 2005, at 2:00 p.m., or at any adjournment or
postponement thereof.

       (Continued and to be marked, dated and signed on the other side)


   Address Change/Comments (Mark the corresponding box on the reverse side)


- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                             /FOLD AND DETACH HERE/





THIS PROXY WILL BE VOTED AS DIRECTED OR, IF NO DIRECTION IS  INDICATED,  WILL BE
VOTED "FOR" ITEM 1.

                                                        Please Mark Here
                                                        for Address Change or
ITEM 1.  ELECTION OF                 WITHHELD           Comments     |_|
DIRECTORS                    FOR     FOR ALL            PLEASE SEE REVERSE
                                                        SIDE
Nominees:                    |_|       |_|
01  Thomas J. Carley
02  James B. Hicks, Ph.D.
03  Jon L. Justesen
04  Anthony Meeker
05  Nancy B. Sherertz
06  William W. Sherertz

Withheld for the nominees you list below:    I PLAN TO ATTEND THE MEETING    |_|
(Write that nominee's name in the space
provided below.)

-----------------------------------------------

Please mark,  sign,  date and return the proxy card promptly  using the enclosed
envelope.

The  undersigned  acknowledges  receipt of the 2005 Notice of Annual Meeting and
accompanying Proxy Statement and revokes all prior proxies for said meeting.


______________________________                  Dated:  _________________, 2005
Signature(s)

NOTE:  Please sign exactly as your name appears hereon. If shares are registered
in more than one name,  the  signatures  of all such  persons  are  required.  A
corporation should sign in its full corporate name by a duly authorized officer,
stating such officer's title. Trustees, guardians, executors, and administrators
should  sign in their  official  capacity  giving  their full  title as such.  A
partnership should sign in the partnership name by an authorized person, stating
such person's title and relationship to the partnership.


                            / FOLD AND DETACH HERE /