United States · Federal contract register · Supplier record

HORSLEY WITTEN GROUP, INC.

Line: Environmental assessments (B510)Register loaded to September 2026Compiled 6 October 2026

HORSLEY WITTEN GROUP, INC. — United States · Federal contract register · Supplier record: 249 contracts, all years ($72,551,498 · Oct 1999 – Sep 2026); $6.2M since January 2024 (30 contracts · 2 agencies); 18th rank in the line (of 336 suppliers · 1.08%); 15 agencies never served ($290M on the line without HORSLEY WITTEN GROUP, INC.).

Assay record ASY-US-0JRYRNH0FI · Cite as: Assay Systems, “HORSLEY WITTEN GROUP, INC. in the USAspending register”, https://assay-systems.com/register/us/horsley-witten-group-inc/

249
contracts, all years
$72,551,498 · Oct 1999 – Sep 2026
$6.2M
since January 2024
30 contracts · 2 agencies
18th
rank in the line
of 336 suppliers · 1.08%
15
agencies never served
$290M on the line without HORSLEY WITTEN GROUP, INC.

Own record by year

2019 onward
$4.5M
$1.7M
$6.0M
$5.1M
$3.7M
$3.2M
$1.5M
$1.5M
20192020202120222023202420252026

Who buys from HORSLEY WITTEN GROUP, INC.

since January 2024
2agencies
$6.2Mpaid
85.2%top buyer
Environmental Protection Agency85.2%
$5,320,145
Department of Commerce14.8%
$923,873

Before 2024 only: Department of Health and Human Services, Department of Justice, Department of Transportation.

The line

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

Environmental assessments (B510)

$147M
$113M
$111M
202420252026Jan–Sep
18thof 336 suppliers
$4,003,336HORSLEY WITTEN GROUP, INC. in the line
1.08%share of the line
8.6%of $46,459,080 spent by Environmental Protection Agency

Agencies that buy the line and never bought from HORSLEY WITTEN GROUP, INC.

15agencies
617contracts
$290,049,957since January 2024
Department of Homeland Security52 contracts
$125,483,965
Department of Defense205 contracts
$72,045,241
Department of the Interior214 contracts
$52,960,701
Department of Energy10 contracts
$17,658,871
Department of Agriculture52 contracts
$10,109,087
Department of Veterans Affairs19 contracts
$5,633,332
Department of State27 contracts
$3,131,233
General Services Administration21 contracts
$2,078,083
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 HORSLEY WITTEN GROUP, 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
191contracts
$113,158,706end by October 2027
43end in September 2027 · $32.1M
154in agencies never served · $78.2M
$1.3M
$2.3M
$6.6M
$5.5M
$1.3M
$23.5M
$2.7M
$10.2M
$13.4M
$7.1M
$6.7M
$32.1M
$475K
Oct 269 contractsNov 2615 contractsDec 2621 contractsJan 2712 contractsFeb 279 contractsMar 2724 contractsApr 278 contractsMay 279 contractsJun 2721 contractsJul 277 contractsAug 2712 contractsSep 2743 contractsOct 271 contract

Suppliers next to it in the line

since January 2024
BLUE WORLD RESEARCH INSTITUTE INC15 contracts · 1 agency
$4,078,581
HORSLEY WITTEN GROUP, INC.
$4,003,336
NEPTUNE AND COMPANY, INCORPORATED1 contract · 1 agency
$4,000,000
ICF INCORPORATED, L.L.C.13 contracts · 1 agency
$3,606,833

All 336 suppliers in the line

Fastest-growing supplier in the line

same line
+680%growth

Supplier UEI NH3HNLDKWHK1

2024 to date
$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.