United States · Federal contract register · Supplier record

WALKER ENVIRONMENTAL RESEARCH LLC

Line: Business application and application development support services, labor (DA01)Register loaded to September 2026Compiled 17 October 2026

WALKER ENVIRONMENTAL RESEARCH LLC — United States · Federal contract register · Supplier record: 13 contracts, all years ($1,311,090 · Jul 2018 – Aug 2025); $594K since January 2024 (4 contracts · 3 agencies); — rank in the line (of 2,242 suppliers · 0.0%); 54 agencies never served ($31.4B on the line without WALKER ENVIRONMENTAL RESEARCH LLC).

Assay record ASY-US-1B4TGYP1EX · Cite as: Assay Systems, “WALKER ENVIRONMENTAL RESEARCH LLC: 4 government contracts in the United States since 2024”, https://assay-systems.com/register/us/walker-environmental-research-llc/

13
contracts, all years
$1,311,090 · Jul 2018 – Aug 2025
$594K
since January 2024
4 contracts · 3 agencies
—
rank in the line
of 2,242 suppliers · 0.0%
54
agencies never served
$31.4B on the line without WALKER ENVIRONMENTAL RESEARCH LLC

Own record by year

2019 onward
$167K
$78.9K
$31.0K
$416K
$441K
$152K
20192020202120222023202420252026

Who buys from WALKER ENVIRONMENTAL RESEARCH LLC

since January 2024
3agencies
$594Kpaid
41.3%top buyer
Environmental Protection Agency41.3%
$245,000
Department of the Interior33.1%
$196,300
Department of Justice25.6%
$152,213

Before 2024 only: Department of Agriculture, Department of Commerce.

Won without a rival

2024-01-11 – 2025-08-05
6uncontested awards
86%of its awards
6without a competition
0single bid

WALKER ENVIRONMENTAL RESEARCH LLC won 6 of its 7 public contract awards in United States without a rival from 2024-01-11 to 2025-08-05, worth $591K: 6 without a competition and 0 after a competition that drew a single bid. 3 buyers awarded it without a rival, the largest U.S. Geological Survey with 3.

Buyers: U.S. Geological Survey (3) · Offices, Boards and Divisions (2) · Environmental Protection Agency (1)

Every uncontested award of WALKER ENVIRONMENTAL RESEARCH LLC · United States: all uncontested awards

The line

since January 2024
$34.0Bline value
17,945contracts
59agencies
2,242suppliers
35.6%held by top ten

Business application and application development support services, labor (DA01)

$19.1B
$10.4B
$4.5B
202420252026Jan–Sep
—of 2,242 suppliers
$0WALKER ENVIRONMENTAL RESEARCH LLC in the line
0.0%share of the line

Agencies that buy the line and never bought from WALKER ENVIRONMENTAL RESEARCH LLC

54agencies
16,893contracts
$31,371,118,886since January 2024
Department of Defense13,243 contracts
$10,952,085,811
General Services Administration375 contracts
$4,061,307,399
Department of Health and Human Services710 contracts
$3,951,518,679
Department of Veterans Affairs484 contracts
$3,715,402,763
Department of Homeland Security535 contracts
$2,838,910,807
Department of the Treasury311 contracts
$2,541,721,757
Department of State120 contracts
$1,272,470,026
Department of Energy57 contracts
$552,130,493
Department of Housing and Urban Development43 contracts
$316,312,742
Department of Labor123 contracts
$248,429,467
Department of Transportation110 contracts
$173,850,092
Department of Education34 contracts
$148,116,587
National Science Foundation35 contracts
$119,374,776
Social Security Administration35 contracts
$51,307,996
Office of Personnel Management20 contracts
$49,968,954
Securities and Exchange Commission21 contracts
$46,385,653
Government Accountability Office35 contracts
$45,369,916
U.S. International Development Finance Corporation23 contracts
$35,508,736
Export-Import Bank of the United States6 contracts
$30,858,320
Consumer Financial Protection Bureau12 contracts
$26,372,935
Executive Office of the President11 contracts
$21,234,048
National Aeronautics and Space Administration308 contracts
$21,229,663
Court Services and Offender Supervision Agency9 contracts
$14,260,580
Nuclear Regulatory Commission13 contracts
$14,087,392
National Labor Relations Board14 contracts
$13,399,555
National Archives and Records Administration11 contracts
$12,190,981
Small Business Administration9 contracts
$11,873,598
Corporation for National and Community Service2 contracts
$10,577,962
Council of the Inspectors General on Integrity and Efficiency8 contracts
$10,415,365
Pension Benefit Guaranty Corporation3 contracts
$8,109,684
Consumer Product Safety Commission12 contracts
$7,177,783
National Gallery of Art12 contracts
$5,957,930
Commodity Futures Trading Commission6 contracts
$5,636,532
Federal Election Commission8 contracts
$5,404,062
Smithsonian Institution59 contracts
$5,392,726
Federal Communications Commission5 contracts
$5,336,580
Agency for International Development3 contracts
$3,243,408
National Endowment for the Arts2 contracts
$2,892,759
District of Columbia Courts7 contracts
$2,524,882
Railroad Retirement Board1 contract
$2,345,204
Federal Trade Commission3 contracts
$2,125,701
Federal Mediation and Conciliation Service7 contracts
$1,919,165
Selective Service System6 contracts
$1,564,769
Federal Labor Relations Authority5 contracts
$1,495,037
Morris K. Udall and Stewart L. Udall Foundation1 contract
$673,308
International Trade Commission12 contracts
$601,059
U.S. Agency for Global Media11 contracts
$585,462
Federal Maritime Commission1 contract
$549,158
United States Chemical Safety Board3 contracts
$450,515
National Endowment for the Humanities5 contracts
$206,100
Defense Nuclear Facilities Safety Board1 contract
$122,654
United States Trade and Development Agency1 contract
$77,352
Peace Corps1 contract
$38,702
National Transportation Safety Board1 contract
$15,300

How the line is bought

by value, since 2024
15%no competition
25%one applicant
0of these to WALKER ENVIRONMENTAL RESEARCH LLC
Competed, several suppliers applied13,845 contracts
$20,233,259,010 · 59.5%
Competed, one supplier applied2,248 contracts
$8,607,506,100 · 25.3%
Awarded directly, no competition1,852 contracts
$5,191,159,769 · 15.3%

Contracts reaching their end dates

Oct 2026 – October 2027
2,781contracts
$19,153,531,428end by October 2027
455end in September 2027 · $2.6B
2,354in agencies never served · $17.8B
$569M
$561M
$1.2B
$1.1B
$2.0B
$1.9B
$3.7B
$1.6B
$1.6B
$1.1B
$1.2B
$2.6B
$8.6M
Oct 2687 contractsNov 26131 contractsDec 26205 contractsJan 27237 contractsFeb 27243 contractsMar 27338 contractsApr 27216 contractsMay 27229 contractsJun 27215 contractsJul 27196 contractsAug 27219 contractsSep 27455 contractsOct 2710 contracts

Suppliers next to it in the line

since January 2024
JLWS ENTERPRISES INC1 contract · 1 agency
$173
AVAILITY, L.L.C.1 contract · 1 agency
$1
COUNCIL FOR AFFORDABLE QUALITY HEALTHCARE, INC.1 contract · 1 agency
$1
WALKER ENVIRONMENTAL RESEARCH LLC
$0

All 2,242 suppliers in the line

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.