General Services Administration (GSA)
OASIS+ 

OASIS Contract Number: 47QRCA25DU329
GSA OASIS website
More Contract Information

Amyx, a Tetra Tech Company, is proud to participate in the GSA’s OASIS+ Unrestricted contract vehicle, a premier federal acquisition solution designed to simplify and accelerate the procurement of complex, mission-critical services. As a trusted partner on OASIS+, Amyx delivers exceptional value by offering innovative, tailored solutions across a broad spectrum of professional services.

Key Features of OASIS+ Unrestricted:

• Contract Structure: OASIS+ offers a 10-year ordering period, consisting of a 5-year base and a 5-year option period. It supports various contract types, including fixed-price, cost-reimbursement, time-and-materials, and hybrid structures, accommodating both commercial and non-commercial requirements .
• Domains: Tetra Tech holds all seven domains on the OASIS+ vehicle.  The seven domains align with multiple North American Industry Classification System (NAICS) codes and include:
  • Management and Advisory (M&A): Provides a full range of management and consulting services aimed at improving federal agency performance and aiding in mission goal achievement.
  • Technical and Engineering (T&E): Offers engineering, geoscience, and other technical professional skills to address specific operating conditions and problems.
  • Research and Development (R&D): Supports R&D activities, including basic research, applied research, and experimental development across various scientific disciplines.
  • Intelligence Services (INTEL): Focuses on Command, Control, Communications, Intelligence, Surveillance, and Reconnaissance (C4ISR) mission requirements to enhance situational awareness and command strategies.
  • Environmental (ENV): Assists agencies in meeting environmental requirements through multidisciplinary teams addressing issues like air and water quality, climate change, and ecological restoration.
  • Enterprise Solutions (ES): Delivers integrated solutions for enterprise-level challenges, including systems integration and business process reengineering.
  • Logistics (LOG): Provides comprehensive logistics services, such as supply chain management, transportation, and maintenance planning.
• Best-in-Class Designation: Recognized by the Office of Management and Budget, OASIS+ is designated as a Best-in-Class (BIC) contract vehicle, indicating its compliance with rigorous performance standards, its effectiveness in achieving government procurement goals, and competitive Contract Access Fee (CAF) .
• Access and Ordering: All federal agencies can utilize OASIS+ for their service needs. Task orders are managed through GSA’s eBuy platform which centralizes solicitation and proposal processes, enhancing efficiency and transparency.  Federal agencies may also hold Delegation of Procurement Authority (DPA), providing additional flexibility to the procurement management process.
• Flexibility and Innovation: OASIS+ also supports ancillary services and other direct costs essential to delivering comprehensive solutions.