One Acquisition Solution for Integrated Services Small Business (OASIS SB)

One Acquisition Solution for Integrated Services Small Business (OASIS SB) is a governmentwide Indefinite Delivery/Indefinite Quantity (IDIQ) contract vehicle for complex professional services, set aside for qualified small businesses. It allowed federal agencies to issue task orders across multiple service domains, providing flexible, long-term access to high-level professional expertise.

What Is One Acquisition Solution for Integrated Services Small Business (OASIS SB)?

One Acquisition Solution for Integrated Services Small Business, commonly known as OASIS SB, is a governmentwide Indefinite Delivery/Indefinite Quantity (IDIQ) contract vehicle for complex professional services set aside for small businesses. It allowed federal agencies to issue task orders to qualified small business contractors across multiple service domains [citation:8].

OASIS SB was designed to provide flexible, long-term access to high-level professional expertise. The core disciplines included program management, management consulting, logistics, engineering, scientific, and financial services [citation:5][citation:8]. It was designated a "Best-in-Class" (BIC) solution, helping agencies meet their spend under management goals [citation:8].

Key Characteristics

Governmentwide IDIQ contract vehicle with a five-year base and one five-year option period [citation:5]

Reserved exclusively for qualified small businesses, with the ability to do socioeconomic set-asides at the task order level [citation:8]

Supported complex professional services requirements across multiple technical disciplines and mission spaces [citation:5]

Used task orders for project-specific work, supporting all contract types including hybrids and cost-reimbursement [citation:5][citation:8]

Organized into service domains and NAICS-based pools, spanning 28 NAICS codes and 6 exceptions [citation:8]

How It Works in Government Contracting

Where It Appears in the Procurement Lifecycle

OASIS SB was used during the contract award and task order phase. Once a small business was awarded a position on the vehicle, agencies competed task orders among those contract holders. The Ordering Contracting Officer (OCO) determined the predominant NAICS code for each task order solicitation [citation:4].

Who Uses It

Federal agencies across the government used OASIS SB to procure integrated professional services. Small businesses that won a spot on the vehicle competed for task orders. Contractors designated a Corporate OASIS SB Contract Manager (COCM) to oversee program compliance and performance [citation:6].

Why It Matters

It simplified procurement for complex service requirements. Agencies avoided creating standalone contracts and instead leveraged a pre-competed vehicle. The contract had no program ceiling, which benefited long-term planning for complex program requirements [citation:5]. A Contract Access Fee (CAF), typically 0.75%, was applied to task orders [citation:6].

Practical Application

For example, an agency requiring engineering services, financial management, or program management support could issue a task order under OASIS SB rather than conducting a full open market procurement. The vehicle was structured into multiple pools with different NAICS codes and size standards—Pool 1 covered management and technical services ($16.5M size standard), while Pool 4 covered scientific R&D (1,000 employee size standard) [citation:4][citation:9].

Regulatory Framework

OASIS SB operated under the authority of the Federal Acquisition Regulation (FAR), particularly FAR Part 16 governing IDIQ contracts and task orders. Ordering procedures followed FAR Subpart 16.505 for task order competitions, which required giving every contract holder a fair opportunity to be considered unless an exception applied [citation:3][citation:4].

FAR 16.505 governing ordering procedures for multiple-award contracts

FAR 19.502 establishing small business set-aside requirements

FAR 19.8 through 19.15 authorizing socioeconomic set-asides at the task order level [citation:8]

The Small Business Act, promoting federal contracting opportunities for small businesses

13 CFR 121 governing size standards and recertification requirements [citation:3][citation:10]

The program included on-ramping procedures to add new contractors and allow lateral pool movement when businesses recertified their size status [citation:10].

Why It Matters for Contractors

Business Implications: Small businesses awarded a position gained access to recurring federal opportunities across multiple agencies, with no program ceiling and a 10-year period of performance [citation:5]. Pools had specific size standards—for example, Pool 1 had a $16.5M receipts standard, while Pool 4 had a 1,000 employee standard [citation:4][citation:10].

Compliance Impact: Contract holders had to maintain small business eligibility, meet reporting requirements, and comply with task order performance standards. They were required to designate a Corporate OASIS SB Contract Manager (COCM) responsible for ensuring contract compliance, accurate data in the Contractor Performance and Reporting Management (CPRM) system, and timely invoicing [citation:6]. Failure to meet administration requirements could result in Dormant Status or off-ramping [citation:6].

Strategic Importance: Being on OASIS SB increased credibility and visibility within the federal marketplace. The vehicle supported both commercial and non-commercial acquisitions, and allowed ancillary support components (other direct costs) at the task order level [citation:5]. Contractors could also participate in on-ramping to add or change pools based on recertification [citation:10].

Risk Considerations: Winning a spot on the vehicle did not guarantee revenue. Contractors had to actively compete for task orders. Size recertification was required, and contractors who outgrew their size standard could be moved to dormant status for that pool, though they could seek lateral ramping to a higher-size pool [citation:10].

Common Misconceptions

OASIS SB guarantees contract awards.

It only provides eligibility to compete for task orders. Contractors must actively compete for each order [citation:5].

It is limited to consulting services.

The vehicle covers a broad range of professional services including program management, logistics, engineering, scientific, and financial services [citation:5][citation:8].

Only one agency can use it.

OASIS SB is governmentwide, available to all federal agencies [citation:8].

Frequently Asked Questions

Is OASIS SB a GSA Schedule contract?

No. It is a multiple award IDIQ contract vehicle, different from a GSA Multiple Award Schedule. It was specifically designed for complex, multidisciplinary professional services [citation:5][citation:8].

Is OASIS SB still available for new orders?

No. The ordering periods for OASIS Small Business and OASIS 8(a) contracts ended on December 19, 2024. Agencies now place orders under the successor program, OASIS+ [citation:1][citation:8].

What types of services were included?

Services included program management, management consulting, logistics, engineering, scientific, and financial services, organized into pools with specific NAICS codes [citation:5][citation:8]. Pool 1 covered management and technical services, Pool 2 covered financial services, and Pool 4 covered scientific R&D [citation:4][citation:9].

How does a small business get on OASIS SB?

Businesses had to respond to a formal solicitation and undergo evaluation based on experience, past performance, and qualifications. The program included on-ramping opportunities for contractors to be added after initial award [citation:10].