Tetra TECH Inc.
Denver, CO Inc. - EMI Division Tetra Tech
- UEI
- WL4VMSDRCLR5
- CAGE
- 3EWL1
- Primary NAICS
- 541620 Environmental Consulting Services
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- Corporate family
-
-
Parent
Pasadena, CA
LMRMKLLL3LG5
-
Parent
Pasadena, CA
LMRMKLLL3LG5
- SAM.gov registration date
- Physical address
- 1560 Broadway #1400, Denver, CO 80202, USA
- Website
- tetratech.com
- Founded
- 1966
- Employees
- 10K-50K
- Estimated annual revenue
- $1B-$10B
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- Civil Engineering
- SIC code
- 87 Engineering & Management Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $4,636,500 |
| FY2025 | $5,927,335 |
| FY2024 | $7,037,123 |
| FY2023 | $7,375,422 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Environmental Protection Agency | $4,636,500 |
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Start brownfields assessment | EPA Region 8 | $249,500 | |
| Start cercla response program support | EPA Region 8 | $250,000 | |
| Start oil site | EPA Region 8 | $200,000 | |
| Start cercla | EPA Region 8 | $715,000 | |
| Start cercla | EPA Region 8 | $2,100,000 |
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| EA Engineering, Science, And Technology, Inc., PBC | 68HE0825F0068 | $249,435 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| HDR Aptim LLC | Englewood, CO | 562910 Remediation Services |
| Weston-Techlaw JV LLC | Chantilly, VA | 541620 Environmental Consulting Services |
| Weston Solutions Inc. | West Chester, PA | 541330 Engineering Services |
| Corporate Headquarters | Denver, CO | 541990 All Other Professional, Scientific, and Technical Services |
| AST Environmental Inc. | Springboro, OH | 562910 Remediation Services |
About the company
Tetra TECH Inc. — operating through its EMI Division and doing business as Tetra TECH — delivers environmental consulting, site assessment, remediation, and emergency response services to federal agencies as a prime contractor (97% of recent awards), with a dominant, single-customer concentration at EPA Region 8. Tetra TECH is a for-profit subsidiary of Tetra Tech, Inc., a global engineering and environmental consulting firm headquartered in Pasadena, California; the Denver-based EMI Division competes in full-and-open procurements without set-aside designations.
Tetra TECH's customer base is heavily concentrated with EPA Region 8, which accounts for 28 of 32 prime awards (97% of awards by count, $132 million combined potential value across a $68 million Indefinite Delivery Contract for the Superfund Technical Assessment and Response Team program). Work spans the six-state region (Colorado, Wyoming, Montana, Utah, North Dakota, South Dakota) and tribal lands. Secondary customers include the Department of Agriculture Forest Service R1-Northern Region (2 awards, $725 thousand) and the National Resources Conservation Service (2 awards, value not specified). The vendor operates almost entirely under a single parent vehicle — Indefinite Delivery Contract 68HE0820D0001, which carries 26 task orders with $64 million combined potential value. Recent representative prime work includes a $6.3 million START 5 Brownfields site assessment delivery order (September 2023), a $6.2 million CERCLA removal program delivery order (September 2023), a $2.2 million START CERCLA site assessment and response delivery order (August 2026), a $950 thousand CERCLA response program support order (September 2026), and a $3 million facilities maintenance, equipment inventory, and purchasing order (July 2025), all time-and-materials awards under the EPA Region 8 IDC.
Activity has accelerated in recent years — two awards in 2021, six in 2023, one in 2024, two in 2025, and eight in 2026 — though the 2024 dip reflects an annual fluctuation rather than a trend. Eleven awards (combined potential value $11.3 million) face ultimate completion within the next twenty-four months and will require recompete. Tetra TECH operates predominantly as a self-performing prime; across SCI-reported prime contracts, the vendor retained roughly 99% of contractor hours in-house. Named subcontractors on EPA Region 8 delivery orders include Eurofins Laboratories and divisions, Cascade Drilling, SWCA Incorporated, Testamerica Laboratories, Field Environmental Instruments Inc., and Authentic Drilling LLC, engaged for specialized laboratory analysis, groundwater monitoring well installation, cultural resource surveys, and field support services. One subcontract sub-award appears in the source: a January 2026 sub-performance under prime EA Engineering, Science, and Technology, Inc. for RAF Desmond remedial investigation and feasibility study support.
SCI-reported invoicing on federal service contracts shows $22.9 million across FY2022–FY2025, with a declining trajectory: $6.2 million in FY2022 (27.2 FTEs), $6 million in FY2023 (25.6 FTEs), $5.9 million in FY2024 (24.1 FTEs), and $4.8 million in FY2025 (19.4 FTEs). Government-paid hourly rates on SCI-reportable prime contracts span a median of $110.19/hr, with the 10th percentile at $99.21/hr and the 90th percentile at $138.52/hr, reflecting mid-level technical labor and senior engineering staff. Place of performance is consistently Denver, Colorado. Tetra TECH's federal footprint is narrowly concentrated on EPA Region 8 Superfund and hazardous-waste response work, with primary expertise in site assessment, CERCLA remediation coordination, emergency response logistics, data management, and field sampling support.
Quick answers
Is Tetra TECH Inc. registered in SAM.gov?
Yes. Tetra TECH Inc.'s SAM.gov registration is active through September 4, 2027.
How much has Tetra TECH Inc. received in federal contracts?
Federal contracts obligated $5,927,335 to Tetra TECH Inc. in fiscal year 2025 and $24,976,381 in fiscal years 2023 through 2027.
How does Tetra TECH Inc. rank among federal contractors?
Tetra TECH Inc. ranked #1 in NAICS 54162, #4 in PSC R429 and #9 at the Environmental Protection Agency in FY2025.
What is Tetra TECH Inc.'s most recent federal award?
Tetra TECH Inc.'s most recent federal contract award is Start brownfields assessment (68HE0826F0055), from EPA Region 8, on September 17, 2026.
On GovTribe
See Tetra TECH Inc.'s full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors