Tetra Tech, Inc.

Tetra Tech, Inc., doing business as Tetra TECH, a global engineering and consulting firm headquartered in Pasadena, California, provides petroleum, oil, and lubricant (POL) infrastructure engineering, design, construction management, API 653 tank inspection, and maintenance services to the Department of Defense as a prime contractor exclusively — the firm holds no subcontract awards in the source data and competes full-and-open without set-aside designations across all customer relationships.

The firm's federal footprint is heavily concentrated in defense energy infrastructure. Defense Logistics Agency Energy dominates the customer base, accounting for 19 awards valued at $3.3 billion combined potential value (94% of total portfolio value), with the remaining three customer agencies placing 12 awards totaling $209.7 million. Tetra Tech's largest vehicle positions are the A&E Services for Petroleum Oil and Lubricant Facilities 2018-2023 IDIQ ($25.3 million across 13 task orders), the Worldwide Fuels Infrastructure Mission Architect-engineer Services for POL Facilities MATOC ($4.2 million across 2 task orders), and the newly awarded Hydrant Fueling Automation Maintenance (HFAM) IDIQ issued January 29, 2026, with a five-year, $24.96 million ceiling for automated hydrant fueling system maintenance and sustainment worldwide. Tetra Tech also holds a $2.5 billion multiple-award Air Force Civil Engineer Center MATOC for worldwide DoD POL systems construction and repair (awarded March 26, 2025), a $98.15 million DLA Automated Fuel System Installation IDIQ (awarded September 19, 2024), and a $6.0 million U.S. Army Europe District BPA for soil and debris sampling and disposal at German installations (awarded August 14, 2025).

Recent representative prime work includes a $4.32 million Department of Energy delivery order for hydrant energy automation operational technology sustainment in Columbus, Ohio (February 13, 2026, completion May 12, 2027); a $4.25 million Air Force firm fixed-price delivery order for FY25–FY26 API 653 tank inspections at multiple CONUS locations (September 19, 2025, completion September 20, 2027); a $2.49 million DLA delivery order for Title I design services at U.S. Air Force in Europe locations (November 1, 2022, completion May 13, 2027), performed with subcontractor Glowacki Engineering Co.; and an $8.15 million Air Force Civil Engineer Center delivery order for Title II oversight of DLA European fuel systems in Great Britain (October 31, 2021, completion April 30, 2027). Activity has been episodic — seven awards in 2023, four in 2025, but only one in 2024 — with five awards (combined potential value $19.5 million) reaching completion inside the next twenty-four months and therefore facing recompete risk. The portfolio is predominantly engineering services work under NAICS 541330 (Engineering Services) and related fuel infrastructure codes, with architect-engineer services (PSC A-E) representing the largest contracting category.