United States · Federal contract register · Supplier record

LANGAN ENGINEERING & ENVIRONMENTAL SERVICES, LLC

Line: Professional, expert witness (R424)Register loaded to September 2026Compiled 6 October 2026

LANGAN ENGINEERING & ENVIRONMENTAL SERVICES, LLC — United States · Federal contract register · Supplier record: 14 contracts, all years ($1,375,695 · Dec 2005 – Nov 2025); $303K since January 2024 (3 contracts · 2 agencies); 688th rank in the line (of 1,098 suppliers · 0.01%); 15 agencies never served ($312M on the line without LANGAN ENGINEERING & ENVIRONMENTAL SERVICES, LLC).

Assay record ASY-US-07WNXU50ZW · Cite as: Assay Systems, “LANGAN ENGINEERING & ENVIRONMENTAL SERVICES, LLC in the USAspending register”, https://assay-systems.com/register/us/langan-engineering-environmental-services-llc/

14
contracts, all years
$1,375,695 · Dec 2005 – Nov 2025
$303K
since January 2024
3 contracts · 2 agencies
688th
rank in the line
of 1,098 suppliers · 0.01%
15
agencies never served
$312M on the line without LANGAN ENGINEERING & ENVIRONMENTAL SERVICES, LLC

Own record by year

2019 onward
$376K
$44.2K
$26.3K
$276K
20192020202120222023202420252026

Who buys from LANGAN ENGINEERING & ENVIRONMENTAL SERVICES, LLC

since January 2024
2agencies
$303Kpaid
84.9%top buyer
Department of Transportation84.9%
$257,000
Department of Justice15.1%
$45,596

Before 2024 only: Department of Defense, Department of Veterans Affairs, Department of the Interior, General Services Administration.

The line

since January 2024
$581Mline value
4,998contracts
21agencies
1,098suppliers
34.0%held by top ten

Professional, expert witness (R424)

$228M
$204M
$150M
202420252026Jan–Sep
688thof 1,098 suppliers
$45,596LANGAN ENGINEERING & ENVIRONMENTAL SERVICES, LLC in the line
0.01%share of the line
0.0%of $224,499,024 spent by Department of Justice

Agencies that buy the line and never bought from LANGAN ENGINEERING & ENVIRONMENTAL SERVICES, LLC

15agencies
1,875contracts
$312,406,199since January 2024
Department of the Treasury507 contracts
$209,215,667
Securities and Exchange Commission124 contracts
$37,466,381
Federal Trade Commission87 contracts
$26,749,906
Department of Health and Human Services1,056 contracts
$15,648,003
Social Security Administration10 contracts
$13,936,030
Commodity Futures Trading Commission15 contracts
$3,282,315
Department of Labor22 contracts
$2,470,683
Consumer Financial Protection Bureau19 contracts
$2,293,884
Department of Homeland Security18 contracts
$507,716
Department of Energy3 contracts
$369,160
Department of Commerce3 contracts
$310,000
Department of State2 contracts
$108,096
Equal Employment Opportunity Commission6 contracts
$34,423
Department of Agriculture2 contracts
$8,268
International Trade Commission1 contract
$5,668

How the line is bought

by value, since 2024
91%no competition
2%one applicant
0of these to LANGAN ENGINEERING & ENVIRONMENTAL SERVICES, LLC
Awarded directly, no competition3,797 contracts
$531,273,039 · 91.4%
Competed, several suppliers applied1,047 contracts
$38,027,991 · 6.5%
Competed, one supplier applied154 contracts
$11,786,243 · 2.0%

Contracts reaching their end dates

Oct 2026 – October 2027
1,011contracts
$100,356,454end by October 2027
116end in January 2027 · $13.4M
279in agencies never served · $25.3M
$1.5M
$3.5M
$11.7M
$13.4M
$4.6M
$16.6M
$7.5M
$5.8M
$12.8M
$7.2M
$9.1M
$6.6M
$11.2K
Oct 2622 contractsNov 2642 contractsDec 26110 contractsJan 27116 contractsFeb 27109 contractsMar 27103 contractsApr 2770 contractsMay 2779 contractsJun 2784 contractsJul 27109 contractsAug 2791 contractsSep 2775 contractsOct 271 contract

Fastest-growing supplier in the line

same line
+89%growth

Supplier UEI EAWFFKL7KQJ4

2024 to date
$47,405,749
2022–2023
$25,089,995

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.