Active
Overview
- Legal name
- TETRA TECH, INC.
- Registered location
- PASADENA, CA, USA
- Website
- Company website ↗
- Primary NAICS
- 541330 — Engineering Services
- Latest award activity
- Sep 10, 2026
Read company summary
TETRA TECH, INC. is associated with UEI LMRMKLLL3LG5 and CAGE 078E8 in public federal records. AcornBids currently links 175 prime awards totaling $914.4M in obligations to this entity. Its largest recorded federal customer by obligations is Department of State. Its recorded federal awards include work classified as Remediation Services; Engineering Services; Environmental Consulting Services. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 541330 (Engineering Services). Its public SAM.gov registration lists PASADENA, CA, USA.
At a glance
Lifetime prime obligations$914.4M
Prime awards175
Awards with future end dates67
Top-agency concentration54.1%
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 28, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- TETRA TECH, INC.
- UEI
- LMRMKLLL3LG5
- CAGE
- 078E8
- Registered address
- 3475 E FOOTHILL BLVD, PASADENA, CA, 91107, USA
- Registration status
- Active
- Primary NAICS
- 541330 — Engineering Services
- SAM activation
- Oct 15, 2025
- Initial registration
- Feb 20, 2002
- Entity start
- Feb 1, 1988
- SAM updated
- Oct 16, 2025
- Registration expires
- Oct 13, 2026
- Fiscal year end
- Sep 30
- Place of incorporation
- DE, USA
Federal award analysis
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| 80KSC025F0008ENVIRONMENTAL SERVICES AT STENNIS SPACE CENTER TO INCLUDE NASA SHARED SERVICES CENTER (NSSC) AND NATIONAL CENTER FOR CRITICAL INFORMATION PROCESSING AND STORAGE (NCCIPS). | National Aeronautics and Space Administration | $3.4M | Jun 1, 2025 | May 31, 2030 |
| 140F0S26F0030MN-FWS ARD-FSHRS-ICRCC SUPPORT | Department of the Interior | $139.9K | Sep 9, 2026 | Sep 20, 2029 |
| 80KSC025A0009THE NASA ENVIRONMENTAL SUPPORT SERVICES (NESS) BLANKET PURCHASE AGREEMENT (BPA) IS AN ENTERPRISE PROCUREMENT VEHICLE TO PROVIDE NASA LOCATIONS A WIDE RANGE OF ENVIRONMENTAL… | National Aeronautics and Space Administration | $225.0M | May 1, 2025 | Not available |
| 140M0126F0042TECHNICAL SUPPORT FOR OFFSHORE MINERAL LEASING AND OPERATIONS ON THE OUTER CONTINENTAL SHELF | Department of the Interior | $1.4M | Sep 1, 2026 | Sep 7, 2029 |
| 68HERC23F0334REGION 5, GREAT LAKES NATIONAL PROGRAM OFFICE, SUPPORT FOR THE CANADA-US GREAT LAKES WATER QUALITY AGREEMENT AND THE UNITED STATES GREAT LAKES RESTORATION INITIATIVE. | Environmental Protection Agency | $193.7K | Jun 15, 2023 | Sep 15, 2027 |
| 68HERC23F0451NUTRIENT SCIENTIFIC TECHNICAL EXCHANGE PARTNERSHIP AND SUPPORT (N-STEPS) | Environmental Protection Agency | $4.9M | Sep 27, 2023 | Sep 13, 2028 |
| 83310123AH025EXIM-WIDE NEPA AND OTHER ENVIRONMENTAL SUPPORT FOR 541620 FAR 8.4 BPA | Export-Import Bank of the United States | $8.7M | Jun 1, 2023 | Not available |
| 68HERH21F0313ERT TECHNICAL SUPPORT SERVICES TASK ORDER AWARD | Environmental Protection Agency | $7.5M | Sep 10, 2021 | Mar 9, 2027 |
| 68HERH25F0282ENVIRONMENTAL RESPONSE TRAINING PROGRAM - LARGE BPA. LIMITED COMBINED ADMIN & OIL CALL ORDER APPROVE WORK PLAN AND COST ESTIMATE AND INCORPORATE IN NEW CALL ORDER | Environmental Protection Agency | $3.4M | Aug 21, 2025 | Aug 20, 2026 |
| 68HERL26F0175OLEM LARGE MISSION SUPPORT CALL ORDER FOR LAND REVITALIZATION TECHNICAL ASSISTANCE, SITE VISIONING AND FINANCING SUPPORT | Environmental Protection Agency | $3.6M | Jul 21, 2026 | Jul 19, 2030 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Oct 16, 2025 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Feb 20, 2002 |
| Entity start | Feb 1, 1988 |
| Industry | Reported size status |
|---|---|
| 237990 — Other Heavy and Civil Engineering Construction | Not reported |
| 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | Not reported |
| 518210 — Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services | Not reported |
| 541310 — Architectural Services | Not reported |
| 541320 — Landscape Architectural Services | Not reported |
| 541330 — Engineering Services | Not reported |
| 541380 — Testing Laboratories and Services | Not reported |
| 541420 — Industrial Design Services | Not reported |
| 541511 — Custom Computer Programming Services | Not reported |
| 541512 — Computer Systems Design Services | Not reported |
| 541513 — Computer Facilities Management Services | Not reported |
| 541519 — Other Computer Related Services | Not reported |
| 541611 — Administrative Management and General Management Consulting Services | Not reported |
| 541618 — Other Management Consulting Services | Not reported |
| 541620 — Environmental Consulting Services | Not reported |
| 541690 — Other Scientific and Technical Consulting Services | Not reported |
| 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | Not reported |
| 541820 — Public Relations Agencies | Not reported |
| 541990 — All Other Professional, Scientific, and Technical Services | Not reported |
| 562112 — Hazardous Waste Collection | Not reported |
| 562910 — Remediation Services | Not reported |
| 611430 — Professional and Management Development Training | Not reported |
| 712120 — Historical Sites | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| BARBARA PETERSEN | Government business | Contact method not published | SAM registration | Not available |
| DOINA A. ATWATER | Alternate government business | Contact method not published | SAM registration | Not available |
| BARBARA A PETERSEN | Electronic business | Contact method not published | SAM registration | Not available |
| AMANDA J. WESTON | Alternate electronic business | Contact method not published | SAM registration | Not available |
| Barbara Petersen | Contractor contract manager | barbara.petersen@tetratech.com | Source | Oct 1, 2026 |
| William Brownlie | Contractor program manager | bill.brownlie@tetratech.com | Source | Oct 1, 2026 |
Registered industries
- 237990 — Other Heavy and Civil Engineering Construction
- 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- 518210 — Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
- 541310 — Architectural Services
- 541320 — Landscape Architectural Services
- 541330 — Engineering Services
- 541380 — Testing Laboratories and Services
- 541420 — Industrial Design Services
- 541511 — Custom Computer Programming Services
- 541512 — Computer Systems Design Services
- 541513 — Computer Facilities Management Services
- 541519 — Other Computer Related Services
- 541611 — Administrative Management and General Management Consulting Services
- 541618 — Other Management Consulting Services
- 541620 — Environmental Consulting Services
- 541690 — Other Scientific and Technical Consulting Services
- 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 541820 — Public Relations Agencies
- 541990 — All Other Professional, Scientific, and Technical Services
- 562112 — Hazardous Waste Collection
- 562910 — Remediation Services
- 611430 — Professional and Management Development Training
- 712120 — Historical Sites
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
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Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
No official subaward rows are loaded, so Acorn does not claim known teaming relationships.
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