TETRA TECH, INC. — United States · Federal contract register · Supplier record: 91 contracts, all years ($118,890,599 · Jan 2008 – Sep 2026); $5.7M since January 2024 (9 contracts · 2 agencies); 16th rank in the line (of 336 suppliers · 1.44%); 15 agencies never served ($188M on the line without TETRA TECH, INC.).
Assay record ASY-US-0DZ6MMM17T · Cite as: Assay Systems, “TETRA TECH, INC. in the USAspending register”, https://assay-systems.com/register/us/tetra-tech-inc-2980/
91
contracts, all years
$118,890,599 · Jan 2008 – Sep 2026
$5.7M
since January 2024
9 contracts · 2 agencies
16th
rank in the line
of 336 suppliers · 1.44%
15
agencies never served
$188M on the line without TETRA TECH, INC.
Own record by year
2019 onward
$2.1M
$3.5M
$609K
$3.9M
$74.6M
$2.7M
$2.9M
$82.9K
20192020202120222023202420252026
Who buys from TETRA TECH, INC.
since January 2024
2agencies
$5.7Mpaid
95.1%top buyer
Environmental Protection Agency95.1%
$5,413,792
Department of Transportation4.9%
$277,365
Before 2024 only: Department of Agriculture, Department of Defense, Department of the Interior.
The line
since January 2024
$371Mline value
767contracts
20agencies
336suppliers
51.9%held by top ten
Environmental assessments (B510)
$147M
$113M
$111M
202420252026Jan–Sep
16thof 336 suppliers
$5,330,912TETRA TECH, INC. in the line
1.44%share of the line
11.5%of $46,459,080 spent by Environmental Protection Agency
Agencies that buy the line and never bought from TETRA TECH, INC.
15agencies
212contracts
$188,226,153since January 2024
Department of Homeland Security52 contracts
$125,483,965
Department of Commerce22 contracts
$22,509,688
Department of Energy10 contracts
$17,658,871
Department of Health and Human Services31 contracts
$8,038,762
Department of Veterans Affairs19 contracts
$5,633,332
Department of State27 contracts
$3,131,233
Department of Justice13 contracts
$2,742,774
General Services Administration21 contracts
$2,078,083
Nuclear Regulatory Commission1 contract
$275,000
Executive Office of the President1 contract
$224,987
National Aeronautics and Space Administration1 contract
$190,783
Department of Housing and Urban Development5 contracts
$152,942
Smithsonian Institution2 contracts
$48,715
National Archives and Records Administration6 contracts
Source: USAspending.gov, U.S. Department of the Treasury, Bureau of the Fiscal Service, usaspending.gov, accessed 30 September 2026.The data is available to copy, adapt, redistribute, or otherwise use for non-commercial or for commercial purposes (USAspending.gov, Licensing); no Dun & Bradstreet data is shown.