United States · Federal contract register · Supplier record

TERWILLIGER CONSULTING, INC.

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

TERWILLIGER CONSULTING, INC. — United States · Federal contract register · Supplier record: 19 contracts, all years ($1,367,601 · Sep 2006 – Feb 2024); $39.8K since January 2024 (1 contract · 1 agency); — rank in the line (of 336 suppliers · 0.0%); 18 agencies never served ($246M on the line without TERWILLIGER CONSULTING, INC.).

Assay record ASY-US-02NJTLS17F · Cite as: Assay Systems, “TERWILLIGER CONSULTING, INC.: 1 government contract in the United States since 2024”, https://assay-systems.com/register/us/terwilliger-consulting-inc/

19
contracts, all years
$1,367,601 · Sep 2006 – Feb 2024
$39.8K
since January 2024
1 contract · 1 agency
—
rank in the line
of 336 suppliers · 0.0%
18
agencies never served
$246M on the line without TERWILLIGER CONSULTING, INC.

Own record by year

2020 onward
$180K
$84.0K
$180K
$25.2K
$39.8K
2020202120222023202420252026

Who buys from TERWILLIGER CONSULTING, INC.

since January 2024
1agencies
$39.8Kpaid
100.0%top buyer
Department of the Interior100.0%
$39,818

Before 2024 only: Department of Defense.

Won without a rival

2024-02-01 – 2024-04-17
2uncontested awards
100%of its awards
0without a competition
2single bid

TERWILLIGER CONSULTING, INC won 2 of its 2 public contract awards in United States without a rival from 2024-02-01 to 2024-04-17, worth $39.8K: 0 without a competition and 2 after a competition that drew a single bid. 2 buyers awarded it without a rival, the largest U.S. Geological Survey with 1.

Buyers: U.S. Geological Survey (1) · U.S. Fish and Wildlife Service (1)

Every uncontested award of TERWILLIGER CONSULTING, INC · United States: all uncontested awards

The line

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

Environmental assessments (B510)

$147M
$113M
$111M
202420252026Jan–Sep
—of 336 suppliers
$0TERWILLIGER CONSULTING, INC. in the line
0.0%share of the line

Agencies that buy the line and never bought from TERWILLIGER CONSULTING, INC.

18agencies
348contracts
$245,629,561since January 2024
Department of Homeland Security52 contracts
$125,483,965
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 TERWILLIGER CONSULTING, INC.
Competed, several suppliers applied541 contracts
$286,503,908 · 77.3%
Competed, one supplier applied99 contracts
$49,113,801 · 13.3%
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
93in agencies never served · $85.4M
$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
ZIA ENGINEERING & ENVIRONMENTAL CONSULTANTS LLC1 contract · 1 agency
$2,330
UNIVERSITY OF OKLAHOMA1 contract · 1 agency
$2,245
CITY OF TUCSON2 contracts · 1 agency
$2,064
TERWILLIGER CONSULTING, INC.
$0

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.