WS DARLEY & CO — United States · Federal contract register · Supplier record: 261 contracts, all years ($36,418,612 · Sep 2008 – Aug 2026); $23.2M since January 2024 (31 contracts · 2 agencies); 17th rank in the line (of 935 suppliers · 1.18%); 10 agencies never served ($8.8M on the line without WS DARLEY & CO).
Assay record ASY-US-1LCGIGD1M5 · Cite as: Assay Systems, “WS DARLEY & CO in the USAspending register”, https://assay-systems.com/register/us/ws-darley-co/
261
contracts, all years
$36,418,612 · Sep 2008 – Aug 2026
$23.2M
since January 2024
31 contracts · 2 agencies
17th
rank in the line
of 935 suppliers · 1.18%
10
agencies never served
$8.8M on the line without WS DARLEY & CO
Own record by year
2019 onward
$97.0K
$318K
$81.9K
$2.6M
$839K
$10.8M
$4.7M
$7.7M
20192020202120222023202420252026
Who buys from WS DARLEY & CO
since January 2024
2agencies
$23.2Mpaid
75.1%top buyer
Department of Defense75.1%
$17,428,121
Department of Homeland Security24.9%
$5,787,038
Before 2024 only: Department of Justice, Department of Veterans Affairs.
The line
since January 2024
$803Mline value
11,844contracts
14agencies
935suppliers
42.0%held by top ten
Power and hand pumps (4320)
$276M
$345M
$182M
202420252026Jan–Sep
17thof 935 suppliers
$9,471,847WS DARLEY & CO in the line
1.18%share of the line
1.6%of $768,323,000 spent by Department of Defense
2.3%of $24,019,494 spent by Department of Homeland Security
Agencies that buy the line and never bought from WS DARLEY & CO
10agencies
440contracts
$8,751,603since January 2024
Department of the Interior50 contracts
$4,449,193
Department of Agriculture22 contracts
$1,734,302
Department of State46 contracts
$1,292,984
Department of Commerce13 contracts
$446,974
General Services Administration297 contracts
$420,848
National Aeronautics and Space Administration4 contracts
$237,346
Smithsonian Institution4 contracts
$78,345
Department of Health and Human Services2 contracts
$64,558
Department of Transportation1 contract
$18,299
Department of the Treasury1 contract
$8,754
How the line is bought
by value, since 2024
32%no competition
25%one applicant
0of these to WS DARLEY & CO
Competed, several suppliers applied7,710 contracts
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.