Vendor, Oakland, CA
Tetra Tech, Inc.
UEI J8CNBANBZ6U8, CAGE 1HWF1
18 awards and $13,543,301 obligated between June 26, 2026 and September 9, 2026, 94% under full and open competition, against 2.0 offers on average where reported.
Sells to
Awarding agencies by dollars.
| Environmental Protection Agency | $13,543,301 |
| Federal Aviation Administration | $0 |
Industries
NAICS on the awards, by dollars.
| Environmental Consulting ServicesNAICS 541620 | $13,543,301 |
| Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)NAICS 541715 | $0 |
How it wins
Awards by competition, set-aside and type.
| Full and Open Competition | 17 |
| Competed Under SAP | 1 |
| Small Business Set Aside - Total | 1 |
| Delivery Order | 17 |
| Definitive Contract | 1 |
Awards
Every award in the window, by dollars obligated.
| Contract | Awarding office | Described as | Obligated |
|---|---|---|---|
| 68HE0923F0071Delivery Order, July 21, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | P00007 - Level-Of-Effort (Loe) and Funding Increase, to 0015 Naum Program Development & Support - Navajo Nation Aum Response Assessment and NAICS 541620, PSC B510 | $5,111,768 |
| 68HE0923F0051Delivery Order, August 21, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This Bilateral Modification (P00007) Is to Increase and Fund Loe Increase and Pop Extension for N. Agency Ee/Ca - to #0007 (DNAICS 541620, PSC B510 | $4,989,234 |
| 68HE0924F0017Delivery Order, July 8, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This Bilateral Modification Is to Increase the Level-Of-Effort for R6 Scmb- to 23 - Navajo Nation Aum Response Assessment andNAICS 541620, PSC B510 | $646,693 |
| 68HE0925F0048Delivery Order, July 8, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This Bilateral Modification Is to Increase Level-Of-Effort (Loe) and Add Funding for to 27, R6, Homestake, Raes II for EPA foNAICS 541620, PSC B510 | $640,825 |
| 68HE0923F0045Delivery Order, September 9, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This Bilateral Modification P00005 Is to Increase the Level-Of-Effort (Loe) and Funding, Incorporate a Work Plan/Cost Plan (WNAICS 541620, PSC B510 | $595,101 |
| 68HE0923F0049Delivery Order, July 10, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This Modification Is Update the Scope of Work to Include Administration, Maintenance, and Support for Naum Server InfrastructNAICS 541620, PSC B510 | $536,498 |
| 68HE0925F0051Delivery Order, August 3, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This Modification (P00001) Is to Extend the Period of Performance for Jackpile-Paguate Uranium Mine Superfund Site.NAICS 541620, PSC B510 | $523,182 |
| 68HE0923F0072Delivery Order, July 10, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This Bilateral Modification Is to Increase the Level-Of-Effort and Funding; to 16 Under Raes 2 Contract #68HE0923D0002.NAICS 541620, PSC B510 | $450,000 |
| 68HE0925F0054Delivery Order, August 21, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This Unilateral Modification Is to Add Incremental Funding for to 29, Raes 2, Haystack.NAICS 541620, PSC B510 | $50,000 |
| 68HE0923F0048Delivery Order, June 29, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This No-Cost, Bilateral Modification Is to Extend the Period of Performance and Add a New Alternate Tocor. the Contractor SupNAICS 541620, PSC B510 | $0 |
| 68HE0923F0061Delivery Order, July 22, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This No-Cost, Bilateral Modification Is to Extend the Period of Performance for UAV Support on Navajo Nation in Accordance UnNAICS 541620, PSC B510 | $0 |
| 68HE0923F0068Delivery Order, July 31, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This No-Cost, Bilateral Modification Is to Extend the Pop End Date by Twelve (12) Months for Ruby Mines - Navajo Nation Aum RNAICS 541620, PSC B510 | $0 |
| 68HE0923F0069Delivery Order, August 7, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This NO-COST Bilateral Modification Is to Extend the Period of Performance for This to Under the Raes 2 Contract # 68HE0923D0NAICS 541620, PSC B510 | $0 |
| 68HE0923F0070Delivery Order, August 19, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This No-Cost, Bilateral Mod Is to Extend the Period of Performance (Pop). the Contractor Shall Provide Evaluations for Known NAICS 541620, PSC B510 | $0 |
| 68HE0923F0073Delivery Order, July 23, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This No-Cost, Bilateral Mod Is to Extend the Period of Performance. Contractor Shall Provide Technical Design Services for PlNAICS 541620, PSC B510 | $0 |
| 68HE0923F0074Delivery Order, August 21, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This Modification (P00009) Is to Extend the Task Order'S Period of Performance Under the Navajo Nation Aum Response AssessmenNAICS 541620, PSC B510 | $0 |
| 68HE0923F0078Delivery Order, June 26, 2026, Full and Open Competition | Region 9 Contracting OfficeEnvironmental Protection Agency | The Purpose of This NO-COST Bilateral Modification P00006 Is to Extend the Period of Performance. the Contractor Shall Provide Support NeedeNAICS 541620, PSC B510 | $0 |
| 697DCK25C00133Definitive Contract, July 17, 2026, Competed Under SAP, 2 offers | 697DCK Regional Acquisitions SVCSFederal Aviation Administration | Environmental Assessment Replacement of the Air Route Surveillance Radar (Arsr) on Mt. Ka`ala, Oahu, HawaiiNAICS 541715, PSC F110 | $0 |
- Places of performance
- ArizonaNew MexicoCaliforniaHawaiiUtah
- Product and service codes
- B510 Environmental Studies and AssessmentsF110 Development of Environmental Impact Statements and Assessments
- Transactions
- 21 across 18 awards