United States · Federal contract register · Supplier record

TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND

Line: Environmental assessments (B510)Register loaded to September 2026Compiled 17 October 2026

TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND — United States · Federal contract register · Supplier record: 36 contracts, all years ($3,213,582 · Feb 2012 – May 2025); $429K since January 2024 (4 contracts · 1 agency); 124th rank in the line (of 336 suppliers · 0.06%); 19 agencies never served ($299M on the line without TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND).

Assay record ASY-US-0POHZH41SO · Cite as: Assay Systems, “TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND: 4 government contracts in the United States since 2024”, https://assay-systems.com/register/us/tetra-tech-international-inc-zweigniederlassung-deutschland/

36
contracts, all years
$3,213,582 · Feb 2012 – May 2025
$429K
since January 2024
4 contracts · 1 agency
124th
rank in the line
of 336 suppliers · 0.06%
19
agencies never served
$299M on the line without TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND

Own record by year

2020 onward
$67.9K
$56.5K
$460K
$323K
$275K
$154K
2020202120222023202420252026

Who buys from TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND

since January 2024
1agencies
$429Kpaid
100.0%top buyer
Department of Defense100.0%
$428,936

The line

since January 2024
$371Mline value
767contracts
20agencies
336suppliers
51.9%held by top ten

Environmental assessments (B510)

$147M
$113M
$111M
202420252026Jan–Sep
124thof 336 suppliers
$238,344TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND in the line
0.06%share of the line
0.3%of $72,045,241 spent by Department of Defense

Agencies that buy the line and never bought from TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND

19agencies
562contracts
$298,590,262since January 2024
Department of Homeland Security52 contracts
$125,483,965
Department of the Interior214 contracts
$52,960,701
Environmental Protection Agency69 contracts
$46,459,080
Department of Commerce22 contracts
$22,509,688
Department of Energy10 contracts
$17,658,871
Department of Agriculture52 contracts
$10,109,087
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
Department of Transportation15 contracts
$835,241
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
$40,350
National Gallery of Art1 contract
$16,667

How the line is bought

by value, since 2024
9%no competition
13%one applicant
0of these to TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND
Competed, several suppliers applied542 contracts
$286,742,252 · 77.4%
Competed, one supplier applied98 contracts
$48,875,457 · 13.2%
Awarded directly, no competition127 contracts
$35,017,794 · 9.4%

Contracts reaching their end dates

Oct 2026 – October 2027
194contracts
$114,660,254end by October 2027
43end in September 2027 · $32.1M
152in agencies never served · $103M
$499K
$2.3M
$6.6M
$5.5M
$1.8M
$23.5M
$2.8M
$10.2M
$13.7M
$7.1M
$7.6M
$32.1M
$1.0M
Oct 265 contractsNov 2615 contractsDec 2621 contractsJan 2712 contractsFeb 2710 contractsMar 2724 contractsApr 279 contractsMay 279 contractsJun 2722 contractsJul 277 contractsAug 2714 contractsSep 2743 contractsOct 273 contracts

Suppliers next to it in the line

since January 2024
DELOITTE & TOUCHE LLP1 contract · 1 agency
$240,377
ENVIRONMENTAL COST MANAGEMENT, INC.2 contracts · 2 agencies
$238,485
TETRA TECH INTERNATIONAL INC. ZWEIGNIEDERLASSUNG DEUTSCHLAND
$238,344
HSG, LLC1 contract · 1 agency
$236,598

All 336 suppliers in the line

Fastest-growing supplier in the line

same line
+680%growth

Supplier UEI NH3HNLDKWHK1

2024 to Sep 2026
$29,525,987
2022–2023
$3,787,754

The extract

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

Request extractSee a sample extract

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.