One Acquisition Solution for Integrated Services (OASIS)
One Acquisition Solution for Integrated Services (OASIS) is a family of multi-award, indefinite delivery, indefinite quantity contracts used by federal agencies to procure complex professional services through a structured, competitive task order framework.
What Is One Acquisition Solution for Integrated Services?
One Acquisition Solution for Integrated Services, commonly known as OASIS, is a family of multi-award, indefinite delivery, indefinite quantity contracts used by federal agencies to procure complex professional services.
It allows agencies to issue task orders to pre-qualified contractors under a structured, competitive framework, avoiding the need to launch full open-market procurements for each requirement.
OASIS is considered a best-in-class contract vehicle, meaning agencies are encouraged to use it for professional services — increasing the volume of opportunities available to awarded contractors.
Key Characteristics of OASIS
Multi-Award IDIQ Structure: Multiple vendors are awarded positions and compete for task orders, providing agencies with a vetted pool of qualified contractors.
Complex Professional Services Scope: Covers engineering, management consulting, logistics, financial management, scientific support, and program management.
Multiple Contract Pools: Includes unrestricted and small business categories, with separate pools for various socioeconomic designations.
Governmentwide Availability: Available for use by federal agencies across government, not limited to a single department or mission area.
Task Order Competition: Agencies issue task orders under OASIS rather than standalone solicitations, following fair opportunity requirements under FAR 16.505.
How OASIS Works in Government Contracting
Step 1: Contractor Award to OASIS Pool
Businesses must respond to a formal solicitation and be competitively awarded a contract position to participate in OASIS.
Separate pools exist for unrestricted competition and small business categories, aligning with small business regulations under the Small Business Act.
Step 2: Agency Issues Task Order
When an agency needs professional services, it issues a task order under OASIS rather than launching a new open-market procurement.
For example, if an agency requires systems engineering support for a multi-year modernization effort, it issues a task order to contractors within the relevant OASIS pool.
Step 3: Task Order Competition and Execution
Contractors within the applicable pool compete at the task order level, submitting proposals based on the specific requirement.
Contractors must maintain performance standards, reporting requirements, and eligibility status within their awarded pool throughout the contract period.
Why OASIS Matters in Government Contracting
For contractors, winning a position on OASIS provides:
Access to recurring task order opportunities across federal agencies
Reduced competition compared to full and open solicitations
Visibility as a vetted, best-in-class contractor for professional services
Long-term relationship development with agency program offices
Being awarded a spot does not guarantee revenue. Contractors must actively compete for task orders, maintain competitive pricing, and sustain strong past performance.
OASIS operates under FAR Part 16 governing indefinite delivery contracts, with task order competitions following fair opportunity requirements under FAR 16.505.
Common Misconceptions About OASIS
OASIS guarantees work for awarded contractors.
Revenue depends entirely on winning individual task order competitions. A vehicle position only grants eligibility to compete.
OASIS is only for large businesses.
OASIS includes pools specifically designed for small businesses and other socioeconomic categories.
OASIS replaces all other contract vehicles.
Agencies may still use other IDIQs or open-market procurements depending on the requirement and acquisition strategy.
Frequently Asked Questions
What types of services are covered under OASIS?
OASIS supports complex professional services such as engineering, logistics, financial management, scientific analysis, and program management.
Is OASIS open to all businesses?
No. Businesses must respond to a formal solicitation and be awarded a contract position to participate in any OASIS pool.
Are small businesses included in OASIS?
Yes. OASIS includes separate pools for small businesses and other socioeconomic categories such as 8(a) and HUBZone firms.
Does OASIS apply to state or local governments?
OASIS is primarily for federal agencies, although certain cooperative purchasing authorities may apply depending on the contract structure.
Related Government Contracting Topics
Indefinite Delivery, Indefinite Quantity (IDIQ): The contract type underlying OASIS, allowing agencies to issue unlimited task orders during a specified period.
Multiple Award Contract (MAC): A contract structure where multiple vendors are awarded and compete for task orders, the model used by OASIS.
Governmentwide Acquisition Contract (GWAC): A category of IDIQ contracts available across federal agencies for IT and professional services, similar to OASIS.
Best-in-Class Contract Vehicles: Designated contract vehicles that OMB encourages agencies to use, a status held by OASIS for professional services.
Fair Opportunity (FAR 16.505): The requirement to provide all OASIS contract holders a fair opportunity to be considered for each task order competition.