One Acquisition Solution for Integrated Services (OASIS)

OASIS with Sun: One Acquisition Solution for Integrated Services

OASIS and OASIS Small Business (SB) are multiple award, Indefinite Delivery Indefinite Quantity (IDIQ) contracts that provide flexible and innovative solutions for complex professional services. Details of OASIS Contract include:

  • Span many areas of expertise and mission space;
  • Span multiple professional service disciplines;
  • Allow flexibility for all contract types, including hybrids and cost-reimbursement, at the task order level; and
  • Allow ancillary support components, commonly referred to as Other Direct Costs (ODC), at the task order level

Core Disciplines

The core disciplines/scopes of the contracts include:

  • Program management services;
  • Management consulting services;
  • Logistics services;
  • Engineering services;
  • Scientific services; and
  • Financial services.

Examples of core disciplines/scope of what can be procured [PDF - 169 KB]

Contract Features

  • Commercial and non-commercial services;
  • CONUS and OCONUS requirements;
  • Classified and unclassified services; and
  • Ancillary Support necessary to deliver a total solution, such as:
    • Labor;
    • Materials;
    • ODCs; or
  • Hybrid of any of the above;
  • Designated Best-in-Class (BIC) solution helping agencies meet their spend under management goals; and
  • Download this OASIS BIC profile [PDF - 196 KB].

Review the OASIS and OASIS SB Master Contracts.


Through the use of OASIS SB, customer agencies receive small business credit, and it supports competition, even in socioeconomic categories.

  • Agencies can plan socioeconomic set asides to meet their goals and support 8(a), HUBZone, and SDVOSB.
    OASIS facilitates agency management of its SB program and goals through awards in every SB category, including socioeconomics and provides business intelligence on SB performance via dashboards.
  • Agencies can reserve task orders for exclusive competition among SB categories, including:
    • HUBZone SB concerns
    • 8(a) business development participants
    • Service-disabled veteran-owned small business (SDVOSB) concerns
    • Economically disadvantaged women-owned small business (EDWOSB) concerns; and
    • Women-owned small business (WOSB) concerns eligible under the Women-Owned SB Program.

Two ways to access OASIS:

  • Direct Acquisition - GSA issues a Delegation of Procurement Authority to the customer agency Ordering Contracting Officer (OCO) who performs the acquisition; or
  • Assisted Acquisition - GSA performs the acquisition on behalf of the customer agency and provides post-award support, as negotiated with the customer. An Inter-Agency Agreement is required.

OASIS has no program ceiling, a five-year base and one five-year option a benefit to long-term planning for complex program requirements.

The labor categories are aligned with occupations, as outlined in the Office of Management and Budget’s (OMB) Standard Occupational Classification (SOC) system.

  • OASIS offers more meaningful proposed rate comparisons at the Task Order level (apples to apples)
    • 104 OASIS LCATs (individual and groups priced at the master contract level)
    • 127 OMB SOC occupations, and
    • 1,000 typical industry job titles
  • The remaining 840 SOC occupations can be added and priced at the task order level as ‘ancillary labor'

The 29 NAICS codes [PDF - 177 KB] (and 6 exceptions) are allocated among seven (7) NAICS code pools.

  • All codes/exceptions in a pool share a common small business (SB) size standard.
  • Agencies can solicit task order proposals from contractors holding awards in the pool with the NAICS code that matches the agency's requirement.

The OASIS Table of PSC codes by OASIS pool number [XLSX - 67 KB] is excerpted from Federal Procurement Data System-Next Generation (FPDS-NG) and only includes those in scope.

  • Select the link above to search for your Pool number and the various possible PSC Codes that may apply.
  • The table is sourced from FPDS-NG.

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Last Reviewed: 2020-07-28