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One Acquisition Solution for Integrated Services Plus Unrestricted (OASIS+ Full and Open)

The One Acquisition Solution for Integrated Services Plus (OASIS+) Unrestricted contract is a Governmentwide Acquisition Contract (GWAC) administered by the U.S. General Services Administration (GSA). OASIS+ enables Federal agencies to procure complex, integrated professional services through a suite of pre-competed, multiple-award Indefinite Delivery/Indefinite Quantity (IDIQ) contracts designed to support mission-critical, non‑information technology (non‑IT) requirements.
OASIS+ is available for use by Federal civilian agencies and Department of Defense (DOD) organizations that hold a Delegation of Procurement Authority (DPA). The vehicle supports a broad range of professional services and allows agencies to acquire multi-disciplinary solutions that integrate multiple service areas under a single task order.

Contract details

OASIS+ Unrestricted is part of a suite of multiple-award IDIQ contracts that provide flexible, scalable acquisition of professional services aligned to Federal mission needs. The contract structure supports functionally aligned service domains, each representing groupings of related non‑IT services that map to North American Industry Classification System (NAICS) codes.

Period of Performance:

June 30, 2024 – June 29, 2029 (base period), with a five-year option period through June 29, 2034.

Key Characteristics:

  • Governmentwide, multi-agency contract vehicle
  • Multiple-award Indefinite Delivery/Indefinite Quantity (IDIQ) structure
  • Supports acquisition of complex, integrated professional services
  • Organized by service domains aligned to NAICS codes
  • Designed for flexible task order execution across mission areas
  • No program ceiling on total contract value

Our Position on OASIS+ Unrestricted

As a contract holder on the OASIS+ Unrestricted vehicle, we enable agencies to access our capabilities through a pre-competed contract, reducing procurement timelines and simplifying acquisition. The vehicle allows agencies to issue full and open task orders for professional services without socioeconomic restrictions, supporting rapid execution of complex requirements across multiple service domains.

Scope and Domains

OASIS+ organizes services into functional domains that enable agencies to align requirements with qualified industry partners. These domains cover a broad spectrum of non‑IT professional services, including:

  • Management and Advisory Services
  • Technical and Engineering Services
  • Research and Development Services
  • Intelligence Services
  • Environmental Services
  • Facilities Services
  • Logistics Services
  • Enterprise Solutions

Sources – OASIS+

https://www.gsa.gov/buy-through-us/products-and-services/professional-services/buy-services/oasis-plus/about-oasis-plus

https://www.gsa.gov/buy-through-us/products-and-services/professional-services/buy-services/oasis-plus

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