Tetra TECH Inc.

Tetra Tech Inc., a global consulting and engineering firm headquartered in Pasadena, California, serves as a prime contractor to the federal government providing comprehensive architect-engineer and professional consulting services. The company delivers specialized expertise in water resources management, civil works infrastructure, environmental assessments, and project management across multiple federal agencies. With a registered office in Seattle, Washington, and an active SAM.gov registration, Tetra Tech maintains substantial federal contracting capabilities as a corporate entity and has demonstrated consistent success in competing for federal work through full and open competition.

Tetra Tech has provided an extensive range of architect-engineer services through its federal contract awards, with primary focus on water resource infrastructure, flood control systems, and civil works projects. The company has executed delivery orders with the U.S. Army Corps of Engineers (USACE) valued at over $16 million across multiple regional offices, including ENDIST Alaska and ENDIST Seattle. Notable projects include the Jarvis Creek Flood Control Project at Fort Greely, Alaska ($2.34 million), the St. George Harbor Improvement geotechnical investigation ($3.32 million), design work on the Dexter Fish Facility screens project in Seattle ($1.51 million), Water Control Manual updates for multiple dams ($559,478), and flood risk analysis engineering support ($806,451). Additional work has included feasibility study design services in Hyder, Alaska, floating breakwater replacement solicitation document updates at Bar Point Harbor in Ketchikan, electrical system upgrades at the Locks and Waterway Service Center in Seattle, and engineering support during construction of the Howard A. Hanson Dam emergency closure system rehabilitation. Tetra Tech frequently engages qualified subcontractors on these projects, including small disadvantaged and minority-owned businesses such as West Consultants Inc., Kleinschmidt Associates, Coastal Frontiers Corporation, Shannon & Wilson Inc., Rha LLC, and Ott-Sakai & Associates LLC. All awarded delivery orders have been firm fixed-price contracts with no set-aside designations, reflecting Tetra Tech's status as a large, established contractor competing in unrestricted competitions.

Tetra Tech maintains two active Indefinite Delivery Contracts with the U.S. Army Corps of Engineers that form the foundation for its federal contracting activities. The first is a single-award IDC valued at $10 million with ENDIST Seattle for architect-engineer services supporting civil works projects in the Seattle region and surrounding areas, with an ultimate completion date of March 14, 2028. This contract encompasses water resource planning, analysis, design, and engineering support activities including project management, surveys, hydraulic and economic analysis, design alternatives, construction documentation, and environmental assessments for dams, navigation infrastructure, and waterways. The second is a multiple-award IDC valued at $18 million with ENDIST Alaska for architect-engineer services primarily focused on Alaska-based infrastructure projects, with a completion date of November 23, 2026 and performance through November 2026. This Alaska-focused IDC has generated the majority of Tetra Tech's recent delivery order activity, funding critical infrastructure projects across the state. Both IDCs operate under USACE's broader civil works architect-engineer contracting framework and enable the agency to issue task orders for specialized technical services as projects are identified. Together, these two vehicles provide Tetra Tech with substantial capacity to support the Corps' water resource management and infrastructure missions across the Pacific Northwest and Alaska regions.