TETRA TECH, INC. — United States · Federal contract register · Supplier record: 122 contracts, all years ($225,244,902 · Sep 2013 – Sep 2026); $39.6M since January 2024 (36 contracts · 1 agency); 11th rank in the line (of 139 suppliers · 2.05%); 19 agencies never served ($1.0B on the line without TETRA TECH, INC.).
Assay record ASY-US-1GA06GN0DE · Cite as: Assay Systems, “TETRA TECH, INC. in the USAspending register”, https://assay-systems.com/register/us/tetra-tech-inc-f01a/
122
contracts, all years
$225,244,902 · Sep 2013 – Sep 2026
$39.6M
since January 2024
36 contracts · 1 agency
11th
rank in the line
of 139 suppliers · 2.05%
19
agencies never served
$1.0B on the line without TETRA TECH, INC.
Own record by year
2019 onward
$18.9M
$108M
$2.9M
$2.1M
$11.4M
$15.6M
$11.9M
$12.1M
20192020202120222023202420252026
Who buys from TETRA TECH, INC.
since January 2024
1agencies
$39.6Mpaid
100.0%top buyer
Environmental Protection Agency100.0%
$39,610,672
The line
since January 2024
$1.1Bline value
657contracts
20agencies
139suppliers
72.7%held by top ten
Professional, emergency response and disaster planning and preparedness support (R429)
$683M
$127M
$323M
202420252026Jan–Sep
11thof 139 suppliers
$23,275,693TETRA TECH, INC. in the line
2.05%share of the line
55.1%of $99,059,810 spent by Environmental Protection Agency
Agencies that buy the line and never bought from TETRA TECH, INC.
19agencies
408contracts
$1,034,071,305since January 2024
Department of Homeland Security110 contracts
$506,252,368
General Services Administration10 contracts
$171,056,548
Department of Defense56 contracts
$168,570,012
Department of State9 contracts
$96,389,060
Department of Health and Human Services75 contracts
$36,067,279
Department of Veterans Affairs20 contracts
$17,165,193
Department of Energy1 contract
$15,428,994
Department of Agriculture81 contracts
$8,417,921
Agency for International Development1 contract
$4,790,592
Social Security Administration3 contracts
$4,538,354
Department of the Interior27 contracts
$3,908,718
Department of the Treasury2 contracts
$531,638
National Archives and Records Administration3 contracts
$354,495
Court Services and Offender Supervision Agency1 contract
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.