<PAGE>

EXHIBIT 10.22                                                       Page 1 of 13

                    CORPORATE EXECUTIVE EMPLOYMENT AGREEMENT

THIS CORPORATE EXECUTIVE EMPLOYMENT AGREEMENT ("Agreement") is made effective as
of November 1, 2003, by and between HENRIK C. SLIPSAGER ("Executive") and ABM
INDUSTRIES INCORPORATED ("Company") for itself and on behalf of its subsidiary
corporations as applicable herein.

WHEREAS, Company is engaged in the building maintenance and related service
businesses, and

WHEREAS, Executive is experienced in the administration, finance, marketing,
and/or operation of such services, and

WHEREAS, Company has invested significant time and money to develop proprietary
trade secrets and other confidential business information, as well as invaluable
goodwill among its customers, sales prospects and employees, and

WHEREAS, Executive wishes to, or has been and desires to remain employed by
Company, and to utilize such proprietary trade secrets, other confidential
business information and goodwill, and

WHEREAS, Company has disclosed or will disclose to Executive such proprietary
trade secrets and other confidential business information which Executive will
utilize in the performance of this Agreement;

NOW THEREFORE, Executive and Company agree as follows:

A.       EMPLOYMENT: Company hereby agrees to employ Executive, and Executive
         hereby accepts such employment, on the terms and conditions set forth
         in this Agreement.

B.       TITLE: Executive's title shall be President and Chief Executive Officer
         of Company, subject to modification as mutually agreed upon by both
         Company and Executive.


C.       DUTIES & RESPONSIBILITIES: Executive shall be expected to assume and
         perform such executive or managerial duties and responsibilities as are
         assigned from time-to-time by the Company's Board of Directors or its
         designated committee, to whom Executive shall report and be
         accountable.

D.       TERM OF AGREEMENT: Employment hereunder shall be deemed effective as of
         November 1, 2003, for a term of two years ("Initial Term"), unless
         sooner terminated pursuant to Paragraph O hereof, or later extended
         pursuant to Paragraph N hereof ("Extended Term").

E.       PRINCIPAL OFFICE: During the Initial Term and any Extended Term, as
         applicable, of this Agreement, Executive shall be based at a Company
         office located in San Francisco in the state of California ("State of
         Employment"), or such other location as shall be mutually agreed upon
         by Company and Executive.

F.       COMPENSATION: Company agrees to compensate Executive, and Executive
         agrees to accept as compensation in full, for Executive's assumption
         and performance of duties and responsibilities pursuant to this
         Agreement:

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

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EXHIBIT 10.22                                                       Page 2 of 13

         1.       SALARY: A salary paid in equal installments of no less
                  frequently than semi-monthly at the annual rate set forth in
                  Paragraph X.1 hereof.

         2.       BONUS: A bonus or other incentive or contingent compensation,
                  if any, pursuant to Paragraph X.2 hereof.

         3.       FRINGE BENEFITS: Executive shall receive the then current
                  fringe benefits generally provided by Company to all of its
                  Executives. Such benefits may include but not be limited to
                  the use of a Company-leased car or a car allowance, group
                  health benefits, long-term disability benefits, group life
                  insurance, sick leave and vacation. Each of these fringe
                  benefits is subject to the applicable Company policy at all
                  times. Executive expressly agrees that should he or she
                  terminate employment with Company for the purpose of being
                  re-employed by a Company affiliate, he or she shall
                  "carry-over" any previously accrued but unused vacation
                  balance to the books of the affiliate.

                  Company reserves the right to add, increase, reduce or
                  eliminate any fringe benefit at any time, but no such benefit
                  or benefits shall be reduced or eliminated as to Executive
                  unless generally reduced or eliminated as to comparable
                  executives within the Company.

         4.       LIMIT: To the extent that any compensation to be paid to
                  Executive under this Agreement would be non-deductible by the
                  Company as a result of the $1 million compensation limit
                  provisions of Section 162(m) of the Internal Revenue Code of
                  1986, as amended (the "Code"), then such compensation shall
                  not be paid out to Executive at that time but shall instead be
                  deferred and paid without interest to Executive (subject to
                  applicable withholding and only to the extent that payment of
                  such deferred amount is fully deductible under Code Section
                  162(m)) in the first month of the taxable year following the
                  taxable year of deferral. If the subsequent payment of the
                  deferral is itself subject to further deferral pursuant to
                  this Paragraph F.4, then such further deferred amount shall
                  instead be paid in the first month of the next following
                  taxable year.

G.       PAYMENT OR REIMBURSEMENT OF BUSINESS EXPENSES: Company shall pay
         directly or reimburse Executive for reasonable business expenses of
         Company incurred by Executive in connection with Company business, and
         approved in accordance with policies and procedures adopted by the
         Audit Committee of the Board of Directors (the "Board"), upon
         presentation by Executive within sixty (60) days after incurring such
         expense of an itemized request for payment including the date, nature,
         recipient, purpose and amount of each such expense, accompanied by
         receipts for all such expenses in accordance with Company policy.

H.       BUSINESS CONDUCT: Executive shall comply with all applicable laws
         pertaining to the performance of this Agreement, and with all lawful
         and ethical rules, regulations, policies, codes of conduct, procedures
         and instructions of Company, including but not limited to the
         following:

         1.       GOOD FAITH: Executive shall not act in any way contrary to the
                  best interest of Company. Executive agrees that if he or she
                  is approached by any person to discuss a possible acquisition
                  or other transaction that could result in a change of control
                  of the Company, Executive will immediately advise the
                  Company's

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

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EXHIBIT 10.22                                                       Page 3 of 13

                  General Counsel and Chair of the Nominating, Governance and
                  Succession Committee of the Board.

         2.       BEST EFFORTS: During all full-time employment hereunder,
                  Executive shall devote full working time and attention to
                  Company. Notwithstanding any other agreement to the contrary,
                  Executive shall not at any time be directly or indirectly
                  employed by, own, operate, assist or otherwise be involved,
                  invested or associated in any business that is similar or
                  competitive to any business of Company; except that Executive
                  may own up to five percent (5%) of such publicly-held
                  business(es), provided that Executive: (a) shall give Company
                  notice(s) of any such ownership exceeding two percent (2%), in
                  accordance with Paragraph W hereof, and (b) shall not at any
                  time be directly or indirectly employed by or operate, assist,
                  or otherwise be involved or associated with any such
                  business(es).

         3.       VERACITY: Executive shall make no claims or promises to any
                  employee, supplier, contractor, customer or sales prospect of
                  Company that are unauthorized by Company or are in any way
                  untrue.

         4.       DRIVER'S LICENSE: Executive shall have a driver's permit
                  issued by Company and shall carry a valid driver's license
                  issued by his or her state of domicile or the State of
                  Employment hereunder whenever Executive is driving any motor
                  vehicle in connection with Company business. Executive agrees
                  to immediately notify Company in writing if Executive's
                  driver's license is lost, expired, restricted, suspended or
                  revoked for any reason whatsoever.

         5.       CODE OF CONDUCT: Executive agrees to fully comply with and
                  annually execute a certification of compliance with the
                  Company's Code of Business Conduct and Ethics.

         6.       OTHER LAWS: Executive agrees to fully comply with the other
                  laws and regulations that govern his performance and receipt
                  of compensation under this Agreement, including but not
                  limited to the provisions of Section 304 of the Sarbanes-Oxley
                  Act of 2002.

I.       NO CONFLICT: Executive represents to Company that Executive is not
         bound by any contract with a previous employer or with any other
         business that might prevent Executive from entering into this
         Agreement. Executive further represents that he or she is not bound by
         any other contracts or covenants that in any way restrict or limit
         Executive's activities in relation to his or her employment with
         Company that have not been fully disclosed to Company prior to the
         signing of this Agreement.

J.       COMPANY PROPERTY: Company shall, from time to time, entrust to the
         care, custody and control of Executive certain of Company's property,
         such as motor vehicles, equipment, supplies, passwords and documents.
         Such documents may include, but shall not be limited to customer lists,
         financial statements, cost data, price lists, invoices, forms,
         electronic files and media, mailing lists, contracts, reports, manuals,
         personnel files or directories, correspondence, business cards, copies
         or notes made from Company documents and documents compiled or prepared
         by Executive for Executive's use in connection with Company business.
         Executive specifically acknowledges that all such items, including
         passwords and documents, are the property of Company, notwithstanding
         their preparation, care, custody, control or possession by Executive at
         any time(s) whatsoever.

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

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EXHIBIT 10.22                                                       Page 4 of 13

K.       GOODWILL & PROPRIETARY INFORMATION: In connection with Executive's
         employment hereunder:

         1.       PROPRIETARY INFORMATION: Executive agrees to utilize and
                  further Company's goodwill ("Goodwill") among its customers,
                  sales prospects and employees, and acknowledges that Company
                  may disclose to Executive and Executive may disclose to
                  Company, proprietary trade secrets and other confidential
                  information not in the public domain ("Proprietary
                  Information") including but not limited to specific customer
                  data such as: (a) the identity of Company's customers and
                  sales prospects, (b) the nature, extent, frequency,
                  methodology, cost, price and profit associated with its
                  services and products purchased from Company, (c) any
                  particular needs or preferences regarding its service or
                  supply requirements, (d) the names, office hours, telephone
                  numbers and street addresses of its purchasing agents or other
                  buyers, (e) its billing procedures, (f) its credit limits and
                  payment practices, and (g) its organization structure.

         2.       DUTY OF LOYALTY: Executive agrees that such Proprietary
                  Information and Goodwill have unique value to Company, are not
                  generally known or readily available to Company's competitors,
                  and could only be developed by others after investing
                  significant time and money. Company would not make such
                  Proprietary Information and Goodwill available to Executive
                  unless Company is assured that all such Proprietary
                  Information and Goodwill will be held in trust and confidence
                  by Executive. Executive hereby acknowledges that to use this
                  Proprietary Information and Goodwill except for the benefit of
                  Company would be a breach of such trust and confidence and in
                  violation of Executive's common law Duty of Loyalty to the
                  Company.

L.       RESTRICTIVE COVENANTS: In recognition of Paragraph K, above, Executive
         hereby agrees that during the Initial Term and the Extended Term, if
         any, of this Agreement, and thereafter as specifically agreed herein:

         1.       NON-SOLICITATION OF EMPLOYEES: Except in the proper
                  performance of this Agreement, Executive shall at no time
                  directly or indirectly solicit or otherwise encourage or
                  arrange for any employee to terminate employment with Company
                  while employed by the Company and for a period of one (1) year
                  following Executive's termination of employment.

         2.       NON-DISCLOSURE: Except in the proper performance of this
                  Agreement, Executive shall not directly or indirectly disclose
                  or deliver to any other person or business, any Proprietary
                  Information obtained directly or indirectly by Executive from,
                  or for, Company.

         3.       NON-SOLICITATION OF CUSTOMERS BY UNFAIR PRACTICES: Executive
                  agrees that at all times after the termination of this
                  Agreement, Executive shall not seek, solicit, divert, take
                  away, obtain or accept the patronage of any customer or sales
                  prospect of Company through the direct or indirect use of any
                  Proprietary Information of Company, or by any other unfair or
                  unlawful business practice.

         4.       NON-SOLICITATION: Executive agrees that for a reasonable time
                  after the termination of this Agreement, which Executive and
                  Company hereby agree to be one (1) year, Executive shall not
                  directly or indirectly, for Executive or for any

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

<PAGE>

EXHIBIT 10.22                                                       Page 5 of 13

                  other person or business, seek, solicit, divert, take away,
                  obtain or accept any customer account or sales prospect with
                  which Executive had direct business involvement on behalf of
                  Company within the one (1) year period prior to termination of
                  this Agreement.

         5.       LIMITATIONS: Nothing in this Agreement shall be binding upon
                  the parties to the extent it is void or unenforceable for any
                  reason in the State of Employment, including, without
                  limitation, as a result of any law regulating competition or
                  proscribing unlawful business practices.

M.       MODIFICATION OF EMPLOYMENT: At any time during the then current Initial
         or Extended Term, as applicable, of this Agreement, a majority of the
         Board shall have the absolute right, with or without cause and without
         terminating this Agreement or Executive's employment hereunder, to
         modify the nature of Executive's employment for the remainder of the
         then current Initial or Extended Term, as applicable, of this
         Agreement, from that of a full-time employee to that of a part-time
         employee ("Modification Period"). The Modification Period shall
         commence immediately upon Company giving Executive written notice of
         such change.

         1.       MODIFICATION ACTIONS: Upon commencement of the Modification
                  Period: (a) Executive shall immediately resign as a full-time
                  employee of Company and as an officer and/or director of
                  Company and of any Company subsidiaries, as applicable, (b)
                  Executive shall promptly return all Company property in
                  Executive's possession to Company, including but not limited
                  to any motor vehicles, equipment, supplies and documents set
                  forth in Paragraph J hereof, and (c) Company shall pay
                  Executive when due any and all, previously earned but as yet
                  unpaid, salary, bonus pursuant to Paragraph X.2.c or other
                  contingent compensation, reimbursement of business expenses
                  and fringe benefits.

         2.       MODIFICATION OBLIGATIONS: During the Modification Period: (a)
                  Company shall continue to pay Executive's monthly salary
                  pursuant to Paragraph F.1 hereof, and to the extent available
                  under the Company's group insurance policies, continue to
                  provide Executive with the same group health and life
                  insurance (subject to Executive continuing to pay the employee
                  portion of any such premium) to which Executive would be
                  entitled as a full-time employee, with the understanding and
                  agreement that such monthly salary and group insurance, if
                  available, shall constitute the full extent of Company's
                  obligation to compensate Executive, (b) Executive shall not be
                  eligible or entitled to receive or participate in any bonus or
                  fringe benefits other than the aforementioned group insurance,
                  if available, (c) in the alternative, Executive may exercise
                  rights under COBRA to obtain medical insurance coverage as may
                  be available to Executive, (d) Executive shall be deemed a
                  part-time employee and not a full-time employee of Company,
                  (e) Executive shall provide Company with such occasional
                  executive or managerial services as reasonably requested by
                  the person(s) designated by the Board, except that failure to
                  render such services by reason of any physical or mental
                  illness or disability other than Total Disability or death as
                  set forth in Paragraph O.2 hereof, or unavailability because
                  of absence from the State of Employment hereunder, shall not
                  affect Executive's right to receive such salary and (f)
                  Company shall pay directly or reimburse Executive in
                  accordance with the provisions of Paragraph G hereof for
                  reasonable business expenses of Company incurred by Executive
                  in connection with such services requested by the person(s)
                  designated by the Board.

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

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EXHIBIT 10.22                                                       Page 6 of 13

         3.       MODIFICATION PERIOD: The Modification Period shall continue
                  until the earlier of: (a) Total Disability or death as set
                  forth in Paragraph O.2 hereof, (b) termination of this
                  Agreement by Company for "just cause" as hereinafter defined,
                  (c) Executive accepting employment or receiving any other
                  compensation from operating, assisting or otherwise being
                  involved, invested or associated with any business that is
                  similar to or competitive with any business in which Company
                  is engaged on the commencement date of the Modification
                  Period, or (d) expiration of the then current Term of this
                  Agreement.

N.       EXTENSION OF EMPLOYMENT:

         1.       RENEWAL: Absent at least ninety (90) days written Notice of
                  Termination of Employment or Notice of Non-Renewal from
                  Company to Executive prior to expiration of the then current
                  Initial or Extended Term, as applicable, of this Agreement,
                  employment hereunder shall continue for an Extended Term (or
                  another Extended Term, as applicable) of one year, by which
                  Executive and Company intend that all terms and conditions of
                  this Agreement shall remain in full force and effect for
                  another twelve (12) months, except that the Base Salary as
                  defined in Paragraph X.1.a may be increased as set forth in
                  Paragraph X.1.b during the Extended Term.

         2.       NOTICE OF NON-RENEWAL: In the event that Notice of Non-Renewal
                  is given ninety (90) days prior to the expiration of the then
                  Initial or Extended Term, as applicable, of this Agreement,
                  employment shall continue on an "at will" basis following the
                  expiration of such Initial or Extended Term. In such event,
                  Company shall have the right to change the terms and
                  conditions of Executive's employment, including but not
                  limited to Executive's position and/or compensation.

O.       TERMINATION OF EMPLOYMENT:

         1.       a.       TERMINATION UPON EXPIRATION OF TERM: Subject to at
                           least ninety (90) days prior written Notice of
                           Termination of Employment, Executive's employment
                           shall terminate, with or without cause, at the
                           expiration of the then current Initial or Extended
                           Term. Company has the option, without terminating
                           this Agreement, of placing Executive on a leave of
                           absence at the full compensation set forth in
                           Paragraph F hereof, for any or all of such notice
                           period.

                  b.       TERMINATION FOR CAUSE: Except as provided in
                           Paragraph O.1.a, the Company shall have the right to
                           terminate Executive's employment hereunder at any
                           time during the then current Initial or Extended
                           Term, as applicable, of this Agreement, without
                           notice subject only to a good faith determination by
                           a majority of the Board of "just cause." "Just cause"
                           includes but is not limited to any (i) theft or
                           dishonesty, (ii) more than one instance of neglect or
                           failure to perform employment duties, (iii) more than
                           one instance of inability or unwillingness to perform
                           employment duties, (iv) insubordination, (v) abuse of
                           alcohol or other drugs or substances affecting
                           Executive's performance of his or her employment
                           duties, (vi) material and willful breach of this
                           Agreement, (vii) other misconduct, unethical or
                           unlawful activity, or for (vii) a conviction of or
                           plea of "guilty" or "no contest" to a felony under
                           the laws of the United States or any state thereof.

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

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EXHIBIT 10.22                                                       Page 7 of 13

                  c.       VOLUNTARY TERMINATION BY EXECUTIVE: At any time
                           during the then current Initial or Extended Term, as
                           applicable, of this Agreement and with or without
                           cause, Executive may terminate employment hereunder
                           by giving Company ninety (90) days prior written
                           notice.

         2.       DISABILITY: Employment hereunder shall automatically terminate
                  upon the total disability ("Total Disability") or death of
                  Executive. Total Disability shall be deemed to occur on the
                  ninetieth (90th) consecutive or non-consecutive calendar day
                  within any twelve (12) month period that Executive is unable
                  to perform the duties set forth in Paragraph C hereof because
                  of any physical or mental illness or disability. Company shall
                  pay when due to Executive or, upon death, Executive's
                  designated beneficiary or estate, as applicable, any and all,
                  previously earned but as yet unpaid, salary, bonus pursuant to
                  Paragraph X.2.c, other contingent compensation, reimbursement
                  of business expenses and fringe benefits which would have
                  otherwise been payable to Executive under this Agreement,
                  through the end of the month in which Total Disability or
                  death occurs.

         3.       ACTIONS UPON TERMINATION: Upon termination of employment
                  hereunder, Executive shall immediately resign as an employee
                  of Company and as an officer and/or director of Company and of
                  any Company subsidiaries, as applicable. Executive shall
                  promptly return and release all Company property in
                  Executive's possession to Company, including but not limited
                  to, any motor vehicles, equipment, supplies, passwords and
                  documents set forth in Paragraph J hereof. Company shall pay
                  Executive when due any and all, previously earned but as yet
                  unpaid, salary, bonus pursuant to Paragraph X.2.c, other
                  contingent compensation, reimbursement of business expenses
                  and fringe benefits.

P.       GOVERNING LAW: This Agreement shall be interpreted and enforced in
         accordance with the laws of the State of Employment hereunder.

Q.       ARBITRATION CLAUSE:

         1.       ARBITRATION AGREEMENT: Except for the interpretation and
                  enforcement of injunctive relief pursuant to Paragraph R
                  hereof (which shall be subject to litigation in any court
                  having proper jurisdiction), any claim or dispute related to
                  or arising from this Agreement (whether based in contract or
                  tort, in law or equity) including, but not limited to, claims
                  or disputes between Executive and Company or its directors,
                  officers, employees and agents regarding Executive's
                  employment or termination of employment hereunder, or any
                  other business of Company, shall be resolved by a neutral
                  arbitrator agreed upon by both parties, through mandatory,
                  final, binding arbitration in accordance with the procedural
                  and discovery rules of the American Arbitration Association.

         2.       COST OF ARBITRATION: The cost of such arbitration shall be
                  borne by the Company. Any such arbitration must be requested
                  in writing within one (1) year from the date the party
                  initiating the arbitration knew or should have known about the
                  claim or dispute, or all claims arising from that dispute are
                  forever waived. Any such arbitration (or court proceeding as
                  applicable hereunder) shall be held in the city and/or county
                  of employment hereunder. Judgment upon the award rendered
                  through such arbitration may be entered and enforced in any
                  court having proper jurisdiction.

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

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EXHIBIT 10.22                                                       Page 8 of 13

R.       REMEDIES & DAMAGES:

         1.       INJUNCTIVE RELIEF: The parties agree that, in the event of a
                  material breach or threatened material breach of Paragraphs K
                  and/or L hereof, the damage or imminent damage to the value of
                  Company's business shall be impractical and/or impossible to
                  estimate or ascertain, and therefore any remedy at law or in
                  damages shall be inadequate. Accordingly, the parties hereto
                  agree that Company shall be entitled to the immediate issuance
                  of a restraining order or an injunction against Executive in
                  the event of such breach or threatened breach, in addition to
                  any other relief available to Company pursuant to this
                  Agreement or under law.

         2.       DAMAGES: Executive agrees that damages resulting from any such
                  breach which involves any customer of Company shall be the
                  actual damages according to proof, as determined by an
                  arbitrator pursuant to Paragraph Q, above.

         3.       WITHHOLDING AUTHORIZATION: To the full extent permitted under
                  the laws of the State of Employment hereunder, Executive
                  authorizes Company to withhold from any severance payments
                  otherwise due to Executive and from any other funds (other
                  than wages) held for Executive's benefit by Company, any
                  damages or losses sustained by Company as a result of any
                  material breach or other material violation of this Agreement
                  by Executive, pending arbitration between the parties as
                  provided for herein.

S.       NO WAIVER: Failure by either party to enforce any term or condition of
         this Agreement at any time shall not preclude that party from enforcing
         that provision, or any other provision of this Agreement, at any later
         time.

T.       SEVERABILITY: The provisions of this Agreement are severable. If any
         arbitrator (or court as applicable hereunder) rules that any portion of
         this Agreement is invalid or unenforceable, the arbitrator's or court's
         ruling shall not affect the validity and enforceability of other
         provisions of this Agreement. It is the intent of the parties that if
         any provision of this Agreement is ruled to be overly broad, the
         arbitrator or court shall interpret such provision with as much
         permissible breadth as is allowable under law rather than consider such
         provision void.

U.       SURVIVAL: All terms and conditions of this Agreement which by
         reasonable implication are meant to survive the termination of this
         Agreement, including but not limited to the Restrictive Covenants and
         Arbitration Clause herein, shall remain in full force and effect after
         the termination of this Agreement.

V.       REPRESENTATIONS: Executive represents and agrees that he or she has
         carefully read and fully understands all of the provisions of this
         Agreement, that he or she is voluntarily entering into this Agreement
         and has been given an opportunity to review all aspects of this
         Agreement with an attorney, if he or she chooses to do so.

W.       NOTICES:

         1.       ADDRESSES: Any notice required or permitted to be given
                  pursuant to this Agreement shall be in writing and delivered
                  in person, or sent prepaid by certified mail, bonded messenger
                  or overnight express, to the party named at the address set
                  forth below or at such other address as either party may
                  hereafter designate in writing to the other party:

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

<PAGE>

EXHIBIT 10.22                                                       Page 9 of 13

                  EXECUTIVE:        HENRIK C. SLIPSAGER
                                    17 Stratton Road
                                    Purchase, NY10577

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

<PAGE>

EXHIBIT 10.22                                                      Page 10 of 13

                  COMPANY:          ABM INDUSTRIES INCORPORATED
                                    160 Pacific Avenue, Suite 222
                                    San Francisco, CA  94111
                                    Attention:  Board of Directors

                  COPY:             ABM INDUSTRIES INCORPORATED
                                    160 Pacific Avenue, Suite 222
                                    San Francisco, CA  94111
                                    Attention: General Counsel

         2.       RECEIPT. Any such Notice shall be assumed to have been
                  received when delivered in person, or forty-eight (48) hours
                  after being sent in the manner specified above.

X.       SPECIAL PROVISIONS:

         1.       BASE SALARY:

                  a.       Executive's base salary ("Base Salary") for the
                           Fiscal Year that began November 1, 2003, shall be Six
                           Hundred Seventy Seven Thousand Nine Hundred Fifty
                           dollars ($677,950), subject to the provisions
                           contained in Subparagraph b, below. The capitalized
                           term "Fiscal Year" used in this agreement means the
                           period beginning on November 1 and ending on October
                           31 of the following calendar year or such other
                           period as shall be designated by the Board as the
                           Company's fiscal year.

                  b.       Effective November 1, 2004, and at the beginning of
                           each Fiscal Year thereafter, Executive shall be
                           eligible, at the sole discretion of a majority of the
                           members of the Board determined by the Board to be
                           "independent directors" (the "Independent
                           Directors"), to receive a merit increase based on
                           Executive's job performance.

                  c.       At the sole discretion of the Independent Directors,
                           the Company may grant a salary adjustment at any time
                           for reasons deemed appropriate by the Independent
                           Directors, including but not limited to a change in
                           Executive's duties resulting in a material increase
                           in responsibility.

         2.       BONUS: Subject to pro-ration in the event of modification or
                  termination of employment hereunder and further subject to the
                  requirement set forth under Subparagraph d, below, Executive
                  shall be entitled to participate in the Company's incentive
                  compensation plan which provides for a performance-based bonus
                  ("Bonus") contingent on the achievement of corporate
                  objectives for each Fiscal Year, or partial Fiscal Year, of
                  employment hereunder during the Initial Term, and during the
                  Extended Term, if any, of this Agreement, as follows:

                  a.       A target Bonus for each Fiscal Year ("Target Bonus")
                           shall be established equal to 50% of Executive's Base
                           Salary for the Fiscal Year.. Executive's Actual Bonus
                           may range from zero percent (0%) to seventy-five
                           percent (75%) of Base Salary (the "Bonus Range") with
                           the amount earned determined based on an assessment
                           of performance against criteria (the "Performance
                           Criteria") established annually by the Executive
                           Compensation and Stock Option Committee of the Board
                           (the

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

<PAGE>

EXHIBIT 10.22                                                      Page 11 of 13

                           "Committee"). Performance Criteria may include both
                           Company and individual objectives, may be both
                           qualitative and quantitative in nature and shall be
                           established and communicated to Executive no later
                           than thirty (30) days after the beginning of the
                           Fiscal Year to which they apply. The assessment of
                           Executive's performance (the "Performance
                           Assessment") for each Fiscal Year shall be the
                           responsibility of the Committee. The determination of
                           the Actual Bonus for each Fiscal Year shall be the
                           responsibility of the Independent Directors.

                  b.       The Committee reserves the right at any time to
                           adjust the Performance Criteria in the event of a
                           Significant Transaction (as defined below) during a
                           Fiscal Year and/or for any unanticipated and material
                           events that are beyond the control of the Company,
                           including but not limited to acts of god, nature, war
                           or terrorism, or changes in the rules for financial
                           reporting set forth by the Financial Accounting
                           Standards Board, the Securities and Exchange
                           Commission, rules of the New York Stock Exchange
                           and/or for any other reason which the Committee
                           determines, in good faith, to be appropriate. For
                           purposes of this Agreement, the term "Significant
                           Transaction" shall mean the Company's acquisition or
                           disposition of a business or assets which the Company
                           is required to report under Item 2 of the SEC Form
                           8-K.

                  c.       The Company shall pay Executive the Actual Bonus for
                           each Fiscal Year following completion of the audit of
                           the Company's financial statements and determination
                           of the Actual Bonus by the Independent Directors, but
                           not later than seventy-five (75) days after the end
                           of the Fiscal Year. The Company in its sole
                           discretion may pay any Actual Bonus earlier. In the
                           event of modification or termination of employment
                           hereunder, the Company shall pay Executive, within
                           seventy-five (75) days thereafter, a prorated portion
                           of the Target Bonus based on the fraction of the
                           Fiscal Year that has been completed prior to the date
                           of modification or termination.

                  d.       Absent bad faith or material error, any conclusions
                           of the Committee or the Independent Directors with
                           respect to the Performance Criteria, the Performance
                           Assessment, or the Actual Bonus shall be final and
                           binding upon Executive and Company.

                  e.       Notwithstanding the foregoing Paragraphs X.2.a,
                           X.2.b, and X.2.c, except as authorized under
                           Paragraph X.2.e no Bonus for any Fiscal Year of the
                           Company shall be payable unless the Company's
                           Earnings Per Share ("EPS") for the Fiscal Year then
                           ending is equal to or greater than eighty percent
                           (80%) of the Company's EPS for the previous Fiscal
                           Year of the Company, in each case excluding any gains
                           and losses from sales of discontinued operations and
                           any WTC Related Gain. For purposes of this Agreement,
                           the term "WTC Related Gain" shall mean the total
                           amount of all items of income included in the
                           Company's audited consolidated financial statements
                           for any Fiscal Year that result from the Company's
                           receipt of insurance proceeds or other compensation
                           or damages due to the Company's loss of property,
                           business or profits as a result of the destruction of
                           the World Trade Center on September 11, 2001.

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH

<PAGE>

EXHIBIT 10.22                                                      Page 12 of 13

                  f.       Notwithstanding any other provision hereof, the
                           Independent Directors may, prior to the beginning of
                           any Fiscal Year, approve and notify the Executive of
                           a modification to the Target Bonus or the Bonus
                           Range. The Independent Directors' decision in this
                           regard shall be deemed final and binding on
                           Executive. In addition, the Independent Directors
                           reserve the right at any time to grant a
                           discretionary incentive bonus, which shall not be
                           subject to any maximum Bonus provisions or
                           limitations.

         3.       POST RETIREMENT HEALTH INSURANCE ASSISTANCE: If and only after
                  Executive retires from employment with Company at age
                  sixty-five (65) or later and concluding no later than ten (10)
                  years thereafter ("Consultancy Period"), the Company shall
                  provide Executive and his spouse with reimbursement for dental
                  coverage comparable to that provided to other Company
                  executive officers together with coverage commonly known as
                  Medicare Supplement or Medigap Insurance to supplement
                  Medicare coverage furnished by the federal government to
                  retirees; provided, however, that Executive and his spouse
                  shall pay Company the then current premium contribution
                  charged by Company to its executive officers for their medical
                  and dental coverage, and Company's cost of such reimbursement
                  shall not exceed a combined amount of $10,000 in any Fiscal
                  Year for Executive and his spouse, or $5,000 in the event of
                  the death of either. In the event that Executive retires,
                  dies, or otherwise terminates employment prior to age 65,
                  Company shall have no obligations under this subparagraph 3.

                  In consideration of the above, during the Consultancy Period:
                  (a) Executive shall provide Company with such occasional
                  executive or managerial services as reasonably requested by
                  the Company, (b) Company shall pay directly or reimburse
                  Executive for previously approved reasonable business expenses
                  incurred by Executive in connection with such services upon
                  presentation to Company by Executive within sixty (60) days
                  after incurring such expenses, of an itemized request for
                  payment including the date(s) and receipt(s) for all such
                  expenses in excess of twenty-five dollars ($25) each, (c)
                  Executive shall not be eligible or entitled to receive or
                  participate in any other of the Company's then current fringe
                  benefits and (d) Executive shall be deemed an independent
                  contractor and not an employee of the Company.

Y.       SCOPE OF CERTAIN PROVISIONS: All references to Company in Paragraphs H,
         J, K, L, O.3 and R in this Agreement shall include Company, and its
         subsidiary corporations and other Company affiliates.

Z.       ENTIRE AGREEMENT: Unless otherwise specified herein, this Agreement
         sets forth every contract, understanding and arrangement as to the
         employment relationship between Executive and Company, and may only be
         changed by a written amendment signed by both Executive and Company.

         1.       NO EXTERNAL EVIDENCE: The parties intend that this Agreement
                  speak for itself, and that no evidence with respect to its
                  terms and conditions other than this Agreement itself may be
                  introduced in any arbitration or judicial proceeding to
                  interpret or enforce this Agreement.

         2.       SUPERSEDES OTHER AGREEMENTS: It is specifically understood and
                  accepted that this Agreement supersedes all oral and written
                  employment agreements between Executive and Company prior to
                  the date hereof, as well as all conflicting provisions of
                  Company's Guidelines for Corporate Approval and its

                                       INITIALS: EXECUTIVE /s/HCS COMPANY /s/MCH
<PAGE>

EXHIBIT 10.22                                                      Page 13 of 13

                  Human Resources Manual, including but not limited to the
                  termination, discipline and discharge provisions contained
                  therein.

         1.       AMENDMENTS: This Agreement may not be amended except in a
                  writing approved by the Board and signed by the Executive and
                  two (2) Independent Directors.

FULL KNOWLEDGE & UNDERSTANDING: Executive and Company hereby acknowledge that
they have carefully read and fully understand all terms and conditions of this
Agreement, that they have been given an opportunity to review all aspects of
this Agreement with an attorney if they so choose, and that they are voluntarily
entering into this Agreement with full knowledge of the benefits and burdens,
and the risks and rewards, contained herein.

IN WITNESS WHEREOF, Executive and two (2) Independent Directors have executed
this Agreement as of the date set forth above:

         EXECUTIVE:        HENRIK C. SLIPSAGER

                           Signature: /s/ Henrik C. Slipsager
                                      -------------------------------

                           Date:      December 2, 2003

         COMPANY:          ABM INDUSTRIES INCORPORATED

                           Signature: /s/ Maryellen C. Herringer
                                      -------------------------------
                                      Maryellen C. Herringer

                           Title:     Chair of the Compensation Committee
                                      Board of Directors

                           Date:      December 2, 2003

                           Signature: /s/ Charles T. Horngren
                                      -------------------------------
                                      Charles T. Horngren

                           Title:     Chair of the Audit Committee
                                      Board of Directors

                           Date:      December 2, 2003

                                      INITIALS: EXECUTIVE /s/HCS  COMPANY /s/MCH