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OASIS – One Acquisition Solution for Integrated Services

OASIS is the General Services Administration’s (GSA) latest set of contracts available for all Federal Government agencies worldwide. The purpose of OASIS is to meet the needs of customers with complex integrated professional service based requirements who cannot use, or find difficulty using, the MAS Schedules, Government-wide Acquisition Contracts (GWACs), or other existing vehicles for a solution.

The core disciplines of the contract include:

  • Program Management
  • Engineering
  • Logistics
  • Scientific
  • Management Consulting
  • Financial


  • May include IT components as a component of the professional service requirement, but IT cannot comprise the majority of the scope:
  • Allows for ancillary support components (ODCs) such as equipment and supplies;
  • Allows for all contract types at the task order level (e.g., cost-reimbursement (all types), fixed-price (all types), time-and-materials, and Labor-Hour) or combined types;
  • 10 year ordering period (Sept 2014-2024)
  • The contract consists of a base period of five years with one five-year option period;
  • Execution period for task orders an additional 5 years (Sept 2029)
  • Task order competition among world-class providers of complex professional services;
  • No maximum or contract ceiling for task orders;
  • Allows for subcontracting;
  • For use by all federal agencies worldwide (CONUS and OCONUS) with delegation of authority from GSA;
  • Contracting activity can use the contract directly or via assisted acquisition services;
  • Maximizes opportunities for small businesses (50% small business subcontracting goals);
  • Task orders may include incentives, performance based measures, multi-year or option periods, and commercial or noncommercial items.
  • 104 standardized labor categories with discretion by OCO to allow additional categories at the task order level;
  • Supports all facility clearance levels;
  • Contract access fee is capped at 0.75%; lower fees can be negotiated or achieved by volume sales tracked at contracting activity level.

How to use Oasis

In order to directly solicit and place a task order under OASIS, the Ordering Contracting Officer (OCO) must first obtain a Delegation of Procurement Authority (DPA) from GSA. Instructions for Requesting a DPA are available on GSA's OASIS web site.

In addition to direct use of OASIS, federal agencies may enter into a Memorandum of Agreement with a servicing agency to issue the task order (assisted acquisition). For more information on assisted acquisition services from GSA’s Federal Acquisition Service, go to GSA’s Assisted Acquisition web site.

The OASIS Ordering Guide provides the procedures for issuing task orders against the OASIS contracts.

Work scope

Regardless of the particular area of expertise or mission space of the agency originating the requirement, OASIS may be used to support and/or improve an organization’s Program Management, Management Consulting, Engineering, Scientific, Logistics, and Financial disciplines that span all life cycle phases for a total integrated solution. Please refer to the OASIS Scope – Section C for a complete description.


OASIS provides all Federal agencies the flexibility to determine fair and reasonable pricing tailored to the ordering agency’s requirement dependent upon level of competition, risk, uncertainties, complexity, urgency, and contract type. The OCO is responsible for analyzing order proposals and documenting the cost or price evaluation to include a determination that the final agreed to price is fair and reasonable, irrespective of contract type(s). When adequate price competition exists generally no additional information is necessary to determine price reasonableness.

The pricing associated with the OASIS labor categories are ceiling rates only for Time & Materials/Labor Hour (T&M/LH) task orders placed on a sole source basis. Otherwise, that pricing does not apply to Fixed Price, Cost-Reimbursement, or T&M/LH orders when adequate price competition is anticipated. For a list of our ceiling rates for prospective sole source T&M/LH task orders, please contact our OASIS contracts manager.

GSA provides an automated pricing tool to assist in developing task order Independent Government Estimates. It covers all occupations in the SOC system mapped to OASIS labor categories pricing associated with 640 specific geographic locations in the U.S. and its territories.

The Pricing Tool is available on GSA's OASIS web site.

Labor Categories

The OASIS labor categories are aligned with occupations, as outlined in the Office of Management and Budget’s Standard Occupational Classification (SOC) system. OASIS contains 104 priced labor categories that are mapped to 127 of the 840 occupations found in the SOC System. The list of OASIS labor categories is found in the OASIS Labor Categories – Section J.1, and is further defined as Junior, Journeyman, Senior, and Subject Matter Expert based upon years of experience, education, and duties/responsibilities as follows:

  • Junior: A Junior labor category has up to 3 years’ experience and a BA/BS degree. A Junior labor category is responsible for assisting more senior positions and/or performing functional duties under the oversight of more senior positions.
  • Journeyman: A Journeyman labor category has 3 to 10 years of experience and a BA/BS or MA/MS degree. A Journeyman labor category typically performs all functional duties independently.
  • Senior: A Senior labor category has over 10 years of experience and a MA/MS degree. A Senior labor category typically works on high-visibility or mission critical aspects of a given program and performs all functional duties independently. A Senior labor category may oversee the efforts of less senior staff and/or be responsible for the efforts of all staff assigned to a specific job.
  • Subject Matter Expert (SME): A Subject Matter Expert is an individual whose qualifications and/or particular expertise are exceptional and/or highly unique. Subject Matter Experts do not have specific experience/education qualifications, but are typically identified as recognized Industry leaders for a given area of expertise.

The remainder of the 840 SOC occupations not identified as OASIS labor categories are considered Ancillary occupations that may be used to provide the Ancillary labor services allowed and defined under OASIS. Contractors may deviate from the definitions above when responding to task order solicitations so long as the deviations are clearly identified in their task order proposal.

Leidos Capabilities

Listed below are Leidos services and solutions offerings that fall within the scope of OASIS. Select a capability below to learn more.

National Security



Leidos Sustainable Management Practices

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