United States · Federal contract register · Supplier record

TETRA TECH, INC.

Line: Professional, engineering and technical (R425)Register loaded to September 2026Compiled 17 October 2026

TETRA TECH, INC. — United States · Federal contract register · Supplier record: 24 contracts, all years ($35,583,241 · Jan 2008 – Jun 2026); $8.9M since January 2024 (4 contracts · 1 agency); 714th rank in the line (of 2,692 suppliers · 0.01%); 38 agencies never served ($5.8B on the line without TETRA TECH, INC.).

Assay record ASY-US-1TWBKC41C5 · Cite as: Assay Systems, “TETRA TECH, INC.: 4 government contracts in the United States since 2024”, https://assay-systems.com/register/us/tetra-tech-inc/

24
contracts, all years
$35,583,241 · Jan 2008 – Jun 2026
$8.9M
since January 2024
4 contracts · 1 agency
714th
rank in the line
of 2,692 suppliers · 0.01%
38
agencies never served
$5.8B on the line without TETRA TECH, INC.

Own record by year

2019 onward
$10.6M
$3.3M
$2.7M
$2.5M
$7.3M
$4.2M
$4.7M
20192020202120222023202420252026

Who buys from TETRA TECH, INC.

since January 2024
1agencies
$8.9Mpaid
100.0%top buyer
Department of Defense100.0%
$8,942,904

Before 2024 only: Department of Justice.

Won without a rival

2023-10-05 – 2026-09-30
65uncontested awards
33%of its awards
9without a competition
56single bid

TETRA TECH, INC won 65 of its 196 public contract awards in United States without a rival from 2023-10-05 to 2026-09-30, worth $68.6M: 9 without a competition and 56 after a competition that drew a single bid. 17 buyers awarded it without a rival, the largest Department of the Army with 15.

Buyers: Department of the Army (15) · U.S. Coast Guard (13) · Agency for International Development (5) · Department of the Air Force (5) · Department of Energy (4) · Environmental Protection Agency (4)

Every uncontested award of TETRA TECH, INC · United States: all uncontested awards

The line

since January 2024
$34.8Bline value
9,940contracts
40agencies
2,692suppliers
20.3%held by top ten

Professional, engineering and technical (R425)

$18.1B
$12.1B
$4.6B
202420252026Jan–Sep
714thof 2,692 suppliers
$4,322,542TETRA TECH, INC. in the line
0.01%share of the line
0.0%of $28,824,356,510 spent by Department of Defense

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

38agencies
3,264contracts
$5,782,999,409since January 2024
General Services Administration126 contracts
$1,321,557,955
Department of Transportation675 contracts
$1,123,112,971
Department of Energy167 contracts
$810,272,357
Department of Homeland Security211 contracts
$697,776,866
Department of Commerce436 contracts
$391,080,812
National Aeronautics and Space Administration147 contracts
$303,818,707
Department of the Interior377 contracts
$209,476,543
Department of Veterans Affairs308 contracts
$207,795,063
Department of Health and Human Services122 contracts
$177,478,072
Department of State142 contracts
$118,928,460
Environmental Protection Agency239 contracts
$94,522,780
Department of the Treasury23 contracts
$92,759,835
Agency for International Development19 contracts
$79,181,376
Department of Agriculture74 contracts
$42,227,889
Department of Housing and Urban Development6 contracts
$26,550,661
National Archives and Records Administration14 contracts
$22,701,357
Nuclear Regulatory Commission18 contracts
$11,715,936
Smithsonian Institution90 contracts
$11,632,528
Small Business Administration3 contracts
$7,585,123
Commodity Futures Trading Commission5 contracts
$7,271,750
Consumer Product Safety Commission3 contracts
$4,689,351
Department of Education2 contracts
$4,528,772
United States Trade and Development Agency1 contract
$3,855,486
National Science Foundation3 contracts
$2,926,749
Consumer Financial Protection Bureau1 contract
$2,099,835
Occupational Safety and Health Review Commission20 contracts
$1,730,404
District of Columbia Courts3 contracts
$1,624,660
Selective Service System5 contracts
$1,135,958
Millennium Challenge Corporation1 contract
$924,209
Federal Communications Commission6 contracts
$679,992
Committee for Purchase from People Who Are Blind or Severely Disabled2 contracts
$412,556
Executive Office of the President2 contracts
$377,400
Defense Nuclear Facilities Safety Board2 contracts
$213,442
U.S. International Development Finance Corporation1 contract
$121,913
National Gallery of Art3 contracts
$96,428
U.S. Agency for Global Media1 contract
$57,500
United States Chemical Safety Board4 contracts
$55,042
Merit Systems Protection Board2 contracts
$22,671

How the line is bought

by value, since 2024
43%no competition
12%one applicant
0of these to TETRA TECH, INC.
Competed, several suppliers applied5,009 contracts
$15,659,620,351 · 45.0%
Awarded directly, no competition3,739 contracts
$14,923,032,648 · 42.9%
Competed, one supplier applied1,192 contracts
$4,185,980,028 · 12.0%

Contracts reaching their end dates

Oct 2026 – October 2027
2,903contracts
$15,149,342,193end by October 2027
399end in March 2027 · $2.3B
1,129in agencies never served · $3.1B
$165M
$684M
$1.9B
$1.9B
$1.5B
$2.3B
$1.6B
$1.6B
$1.5B
$518M
$465M
$976M
$49.8M
Oct 2687 contractsNov 26175 contractsDec 26318 contractsJan 27255 contractsFeb 27247 contractsMar 27399 contractsApr 27250 contractsMay 27298 contractsJun 27242 contractsJul 27133 contractsAug 27152 contractsSep 27327 contractsOct 2720 contracts

Suppliers next to it in the line

since January 2024
EVINCE ANALYTICS, INCORPORATED1 contract · 1 agency
$4,329,490
INFO NOW SERVICES LLC1 contract · 1 agency
$4,322,586
TETRA TECH, INC.
$4,322,542
TITANIA SOLUTIONS GROUP, INC.1 contract · 1 agency
$4,316,678

All 2,692 suppliers in the line

The extract

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

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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.