TETRA TECH, INC.: federal contracts won
Federal contracts of $10,000 or more awarded to this company since October 2023 (FY2024), from USAspending.gov. UEI: LMRMKLLL3LG5
170contracts won
$994,864,680total obligated
$670,377median contract
Sep 30, 2026most recent start
Agencies it works for
| Agency | Contracts | Obligated |
|---|---|---|
| Department of State | 14 | $515,963,369 |
| Agency for International Development | 16 | $240,521,230 |
| Department of Defense | 42 | $142,854,161 |
| Environmental Protection Agency | 36 | $36,971,214 |
| Department of Energy | 13 | $23,731,775 |
| Department of Homeland Security | 11 | $8,434,334 |
| Department of Commerce | 1 | $7,763,487 |
| Department of the Interior | 9 | $5,076,712 |
| National Aeronautics and Space Administration | 2 | $5,020,139 |
| Department of Agriculture | 13 | $3,097,223 |
Industries (NAICS)
| NAICS | Contracts | Obligated |
|---|---|---|
| 562910 Remediation Services | 20 | $479,770,507 |
| 541330 Engineering Services | 55 | $411,838,745 |
| 541620 Environmental Consulting Services | 87 | $91,861,108 |
| 541512 Computer Systems Design Services | 1 | $7,763,487 |
| 541320 Landscape Architectural Services | 2 | $2,060,728 |
| 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services | 2 | $889,456 |
| 541199 All Other Legal Services | 2 | $352,198 |
| 541380 Testing Laboratories and Services | 1 | $328,451 |
Where it works
California 42District of Columbia 17Virginia 11Montana 7Alabama 5New Mexico 5New York 3Ohio 3Florida 3Texas 3Mississippi 3Massachusetts 3Maryland 2Alaska 2Idaho 2
Recent contracts
| Contract | Winner | Agency | Obligated | Start |
|---|---|---|---|---|
| OLEM LARGE MISSION SUPPORT CALL ORDER TITLE: RCRA CORRECTIVE ACTION (CA) PROGRAM SUPPORT
68HERL26F0231 · NAICS 541620 Environmental Consulting Services · Chantilly, VA |
— | Environmental Protection Agency | $265,370 Potential value: $519,121 |
Sep 30, 2026 Ends: Sep 29, 2027 |
| HAWAII LAND RETENTION EIS
140D0426F1259 · NAICS 541330 Engineering Services · Pasadena, CA |
— | Department of the Interior Departmental Offices |
$1,977,825 Potential value: $2,487,899 |
Sep 24, 2026 Ends: Sep 23, 2029 |
| NEW CALL ORDER FOR SUPPORT FOR THE NATIONAL NONPOINT SOURCE MANAGEMENT PROGRAM
68HERW26F0215 · NAICS 541620 Environmental Consulting Services · Pasadena, CA |
— | Environmental Protection Agency | $368,000 Potential value: $999,986 |
Sep 16, 2026 Ends: Sep 14, 2027 |
| MN-FWS ARD-FSHRS-ICRCC SUPPORT
140F0S26F0030 · NAICS 541620 Environmental Consulting Services · Pasadena, CA |
— | Department of the Interior U.S. Fish and Wildlife Service |
$139,864 Potential value: $431,553 |
Sep 09, 2026 Ends: Sep 20, 2027 |
| TECHNICAL SUPPORT FOR OFFSHORE MINERAL LEASING AND OPERATIONS ON THE OUTER CONTINENTAL SHELF
140M0126F0042 · NAICS 541620 Environmental Consulting Services · Pasadena, CA |
— | Department of the Interior Bureau of Ocean Energy Management |
$1,448,567 | Sep 01, 2026 Ends: Sep 07, 2029 |
| JH HAZARDOUS FUELS CULTURAL SURVEY
140L3926F0034 · NAICS 541620 Environmental Consulting Services · Reno, NV |
— | Department of the Interior Bureau of Land Management |
$220,339 | Aug 05, 2026 Ends: Mar 31, 2027 |
| OLEM LARGE MISSION SUPPORT CALL ORDER FOR LAND REVITALIZATION TECHNICAL ASSISTANCE, SITE VISIONING AND FINANCING SUPPORT
68HERL26F0175 · NAICS 541620 Environmental Consulting Services · Chantilly, VA |
— | Environmental Protection Agency | $2,171,000 Potential value: $16,815,495 |
Jul 21, 2026 Ends: Jul 19, 2027 |
| MCC REQUIRES INFRASTRUCTURE CONSULTING SERVICES FOR ROAD TRANSPORTATION INFRASTRUCTURE AND SERVICES.
95332426F0052 · NAICS 541320 Landscape Architectural Services |
— | Millennium Challenge Corporation | $819,610 Potential value: $6,438,919 |
Jul 15, 2026 Ends: Jul 14, 2027 |
| TRE CONTRACTOR SHALL PROVIDE (TPC) SERVICES IN SUPPORT OF THE RIYADH NEW EMBASSY COMPOUND PROJECT AND PROVIDES FUNDING FOR 24 MONTHS OF ELEC…
19AQMM26F0303 · NAICS 541330 Engineering Services · Arlington, VA |
— | Department of State | $702,171 | Jul 01, 2026 Ends: Jun 30, 2028 |
| SUPPORT FOR ALASKA, IDAHO, OREGON, AND WASHINGTON WATERS
68HERW26F0114 · NAICS 541620 Environmental Consulting Services · Fairfax, VA |
— | Environmental Protection Agency | $397,750 Potential value: $896,619 |
Jun 18, 2026 Ends: Jun 17, 2027 |
| MCC REQUIRES INFRASTRUCTURE CONSULTING SERVICES FOR ROAD TRANSPORTATION INFRASTRUCTURE AND SERVICES.
95332426F0048 · NAICS 541320 Landscape Architectural Services |
— | Millennium Challenge Corporation | $1,241,118 Potential value: $6,280,676 |
Jun 15, 2026 Ends: Jun 14, 2027 |
| TECHNICAL SUPPORT SERVICES FOR NATIONAL ENVIRONMENTAL POLICY ACT (NEPA) COMPLIANCE ASSOCIATED WITH SITE-WIDE DOCUMENT DEVELOPMENT FOR DEPART…
89233126FNA000218 · NAICS 541620 Environmental Consulting Services · Pasadena, CA |
— | Department of Energy | $3,255,226 Potential value: $18,894,497 |
Jun 01, 2026 Ends: May 31, 2027 |
| FENCE-TO-FENCE SOUTHWEST - MULTIPLE ENVIRONMENTAL PROJECTS AT LAJES FIELD AND MORON AB
FA564126F0014 · NAICS 562910 Remediation Services |
— | Department of Defense Department of the Air Force |
$221,085 Potential value: $1,447,969 |
Jun 01, 2026 Ends: May 31, 2028 |
| FY26 ENTERPRISE-LEVEL AIR QUALITY SUSTAINMENT PLANS FOR AFCEC
W9127826FA140 · NAICS 541330 Engineering Services · San Antonio, TX |
— | Department of Defense Department of the Army |
$3,501,476 | Jun 01, 2026 Ends: Jul 06, 2027 |
| MOODY AFB WWTP - PHOSPHOROUS STUDY
140D0426F0198 · NAICS 541620 Environmental Consulting Services · Pasadena, CA |
— | Department of the Interior Departmental Offices |
$135,430 | Mar 30, 2026 Ends: Sep 26, 2026 |
| OBTAIN NECESSARY ENVIRONMENTAL COMPLIANCE DUE DILIGENCE ON BEHALF OF THE USCG. THIS DUE DILIGENCE IS NEEDED TO SUPPORT THE UPCOMING REAL PRO…
47PH5426F0058 · NAICS 541620 Environmental Consulting Services · Washington, DC |
— | General Services Administration Public Buildings Service |
$395,103 | Mar 06, 2026 Ends: Mar 05, 2027 |
| POST-CERTIFICATE COMPLIANCE INSPECTIONS
89603026F0015 · NAICS 541620 Environmental Consulting Services · Washington, DC |
— | Department of Energy Federal Energy Regulatory Commission |
$1,000,000 | Mar 01, 2026 Ends: Feb 28, 2027 |
| F2F UNITED KINGDOM CONTRACT, INCLUDING MULTIPLE ENVIRONMENTAL PROJECTS ON RAF ALCONBURY, RAF CROUGHTON, RAF FAIRFORD, RAF LAKENHEATH, RAF MI…
FA564126F0011 · NAICS 562910 Remediation Services |
— | Department of Defense Department of the Air Force |
$596,756 Potential value: $6,275,752 |
Mar 01, 2026 Ends: Aug 31, 2027 |
| WI - WHITTLESEY CREEK NWR - SAGINAW BAY TO WESTERN LAKE ERIE BLUEPRINT (PHASE 4)
140FS226F0027 · NAICS 541620 Environmental Consulting Services · Pasadena, CA |
— | Department of the Interior U.S. Fish and Wildlife Service |
$70,288 | Feb 17, 2026 Ends: Dec 31, 2026 |
| SAROPS EDS TASK ORDER 2 - SUBSCRIPTION
70Z0G326FOIPL0016 · NAICS 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services · Kearneysville, WV |
— | Department of Homeland Security U.S. Coast Guard |
$641,058 Potential value: $3,403,467 |
Feb 07, 2026 Ends: Feb 06, 2027 |
| R425-TMDL DEVELOPMENT SUPPORT FOR OREGON WATERS
68HERW26F0018 · NAICS 541620 Environmental Consulting Services · Fairfax, VA |
— | Environmental Protection Agency | $389,647 Potential value: $488,513 |
Jan 30, 2026 Ends: Jan 29, 2027 |
| SAROPS EDS TASK ORDER 1 - REFINEMENT
70Z0G326FOIPL0015 · NAICS 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services · Pasadena, CA |
— | Department of Homeland Security U.S. Coast Guard |
$248,399 | Jan 20, 2026 Ends: Jan 19, 2027 |
| OLEM MISSION SUPPORT SERVICES CALL ORDER TITLE: COMMUNICATIONS SUPPORT FOR EPA'S BROWNFIELDS AND LAND REVITALIZATION PROGRAM
68HERL26F0012 · NAICS 541620 Environmental Consulting Services · Chantilly, VA |
— | Environmental Protection Agency | $679,364 Potential value: $6,319,975 |
Dec 12, 2025 Ends: Dec 11, 2026 |
| FY27 - ERICP, MILCON, FTFA2330003, POWER GENERATION MICROGRID EGLIN AFB, FL
W9127826FA024 · NAICS 541330 Engineering Services · Eglin Afb, FL |
— | Department of Defense Department of the Army |
$1,081,314 Potential value: $1,296,867 |
Dec 03, 2025 Ends: Dec 03, 2026 |
| OKATIBBEE FRP INTAKE BULKHEAD, OKATIBBEE LAKE, MS
W9127826FA020 · NAICS 541330 Engineering Services · Collinsville, MS |
— | Department of Defense Department of the Army |
$318,768 Potential value: $532,581 |
Dec 01, 2025 Ends: Oct 22, 2026 |
Source: USAspending.gov (prime contract awards of $10,000 or more). Values are amounts obligated to date. Recent months can still change as agencies report late.