United States · Federal contract register · Supplier record

TETRA TECH INC

Line: Construction, other non-building facilities (C1PZ)Register loaded to September 2026Compiled 6 October 2026

TETRA TECH INC — United States · Federal contract register · Supplier record: 195 contracts, all years ($49,513,197 · Jul 2006 – Jul 2026); $4.5M since January 2024 (9 contracts · 1 agency); 27th rank in the line (of 57 suppliers · 0.34%); 6 agencies never served ($85.7M on the line without TETRA TECH INC).

Assay record ASY-US-18FSD981RX · Cite as: Assay Systems, “TETRA TECH INC in the USAspending register”, https://assay-systems.com/register/us/tetra-tech-inc-d3a5/

195
contracts, all years
$49,513,197 · Jul 2006 – Jul 2026
$4.5M
since January 2024
9 contracts · 1 agency
27th
rank in the line
of 57 suppliers · 0.34%
6
agencies never served
$85.7M on the line without TETRA TECH INC

Own record by year

2019 onward
$5.7M
$1.6M
$2.2M
$15.0K
$3.3M
$3.0M
$1.4M
$149K
20192020202120222023202420252026

Who buys from TETRA TECH INC

since January 2024
1agencies
$4.5Mpaid
100.0%top buyer
Department of Defense100.0%
$4,527,053

Before 2024 only: Department of Agriculture.

The line

since January 2024
$155Mline value
80contracts
8agencies
57suppliers
84.0%held by top ten

Construction, other non-building facilities (C1PZ)

$93.4M
$33.7M
$28.3M
202420252026Jan–Sep
27thof 57 suppliers
$522,351TETRA TECH INC in the line
0.34%share of the line
0.8%of $69,590,699 spent by Department of Defense

Agencies that buy the line and never bought from TETRA TECH INC

6agencies
47contracts
$85,650,295since January 2024
Department of State16 contracts
$63,226,888
Department of Veterans Affairs19 contracts
$10,768,537
Department of Homeland Security8 contracts
$8,894,064
Department of the Interior2 contracts
$2,678,729
Department of Justice1 contract
$53,867
Department of Commerce1 contract
$28,210

How the line is bought

by value, since 2024
10%no competition
43%one applicant
0of these to TETRA TECH INC
Competed, several suppliers applied56 contracts
$73,979,892 · 47.6%
Competed, one supplier applied19 contracts
$66,515,492 · 42.8%
Awarded directly, no competition5 contracts
$14,901,547 · 9.6%

Contracts reaching their end dates

Oct 2026 – October 2027
22contracts
$29,480,581end by October 2027
5end in September 2027 · $4.0M
12in agencies never served · $12.3M
$286K
$1.6M
$14.0M
$2.7M
$2.0M
$3.4M
$67.4K
$1.0M
$481K
$4.0M
Oct 261 contractNov 263 contractsDec 264 contractsJan 272 contractsFeb 272 contractsMar 272 contractsJun 271 contractJul 271 contractAug 271 contractSep 275 contracts

Suppliers next to it in the line

since January 2024
KAI HAWAII, INC1 contract · 1 agency
$556,188
WSP USA INC1 contract · 1 agency
$529,577
TETRA TECH INC
$522,351
LLOYD COLLINS JV1 contract · 1 agency
$502,489

All 57 suppliers in the line

Fastest-growing supplier in the line

same line
+716%growth

Supplier UEI C149ZWFUQ6N1

2024 to date
$13,057,996
2022–2023
$1,600,000

The extract

Every buying office, every contract holder, value, number and end date behind the figures above.

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.