United States · Federal contract register · Supplier record

WILLIAMSON CLEANING SERVICE, INC

Line: Custodial janitorial (S201)Register loaded to September 2026Compiled 6 October 2026

WILLIAMSON CLEANING SERVICE, INC — United States · Federal contract register · Supplier record: 4 contracts, all years ($239,200 · Apr 2008 – May 2024); $47.2K since January 2024 (1 contract · 1 agency); 965th rank in the line (of 1,487 suppliers · 0.0%); 30 agencies never served ($2.5B on the line without WILLIAMSON CLEANING SERVICE, INC).

Assay record ASY-US-1PAJXO41QX · Cite as: Assay Systems, “WILLIAMSON CLEANING SERVICE, INC in the USAspending register”, https://assay-systems.com/register/us/williamson-cleaning-service-inc/

4
contracts, all years
$239,200 · Apr 2008 – May 2024
$47.2K
since January 2024
1 contract · 1 agency
965th
rank in the line
of 1,487 suppliers · 0.0%
30
agencies never served
$2.5B on the line without WILLIAMSON CLEANING SERVICE, INC

Own record by year

2019 onward
$72.6K
$47.2K
20192020202120222023202420252026

Who buys from WILLIAMSON CLEANING SERVICE, INC

since January 2024
1agencies
$47.2Kpaid
100.0%top buyer
Department of the Interior100.0%
$47,160

The line

since January 2024
$2.6Bline value
6,858contracts
31agencies
1,487suppliers
25.3%held by top ten

Custodial janitorial (S201)

$1.1B
$1.0B
$429M
202420252026Jan–Sep
965thof 1,487 suppliers
$47,160WILLIAMSON CLEANING SERVICE, INC in the line
0.0%share of the line
0.1%of $61,765,941 spent by Department of the Interior

Agencies that buy the line and never bought from WILLIAMSON CLEANING SERVICE, INC

30agencies
6,555contracts
$2,503,784,956since January 2024
Department of Defense3,435 contracts
$1,494,872,235
Department of Veterans Affairs452 contracts
$256,678,389
Department of Homeland Security268 contracts
$245,694,528
Department of Health and Human Services70 contracts
$109,047,043
General Services Administration777 contracts
$97,396,407
Department of State516 contracts
$62,173,066
Department of Transportation160 contracts
$60,498,907
Department of Justice34 contracts
$42,404,454
Department of Agriculture621 contracts
$40,865,348
National Aeronautics and Space Administration47 contracts
$32,115,432
Department of Commerce89 contracts
$14,616,074
Department of the Treasury12 contracts
$9,127,386
Environmental Protection Agency8 contracts
$8,213,801
Department of Energy24 contracts
$7,715,273
Department of Housing and Urban Development1 contract
$4,679,052
National Archives and Records Administration3 contracts
$4,015,210
District of Columbia Courts2 contracts
$3,315,492
Department of Labor2 contracts
$3,062,962
Court Services and Offender Supervision Agency1 contract
$2,397,964
Railroad Retirement Board3 contracts
$2,345,726
Smithsonian Institution17 contracts
$1,792,187
Office of Personnel Management2 contracts
$230,551
Agency for International Development1 contract
$174,613
U.S. Agency for Global Media3 contracts
$104,085
Federal Communications Commission2 contracts
$84,212
U.S. International Development Finance Corporation1 contract
$83,899
National Science Foundation1 contract
$47,610
Executive Office of the President1 contract
$23,750
National Gallery of Art1 contract
$4,926
Merit Systems Protection Board1 contract
$4,375

How the line is bought

by value, since 2024
59%no competition
3%one applicant
0of these to WILLIAMSON CLEANING SERVICE, INC
Awarded directly, no competition2,742 contracts
$1,513,979,368 · 59.0%
Competed, several suppliers applied3,741 contracts
$971,629,341 · 37.9%
Competed, one supplier applied375 contracts
$79,942,188 · 3.1%

Contracts reaching their end dates

Oct 2026 – October 2027
1,745contracts
$934,832,960end by October 2027
259end in March 2027 · $173M
1,580in agencies never served · $899M
$51.5M
$43.6M
$40.4M
$78.6M
$100M
$173M
$118M
$54.7M
$67.7M
$64.3M
$100.0M
$42.7M
$58.5K
Oct 26103 contractsNov 26102 contractsDec 26139 contractsJan 27116 contractsFeb 27152 contractsMar 27259 contractsApr 27212 contractsMay 27165 contractsJun 27135 contractsJul 27103 contractsAug 27113 contractsSep 27145 contractsOct 271 contract

Suppliers next to it in the line

since January 2024
CCS KING GEORGE 2 LLC1 contract · 1 agency
$47,434
WILLIAMSON CLEANING SERVICE, INC
$47,160
THE MBF SERVICES LLC1 contract · 1 agency
$47,000
WAGNER ENTERPRISE L.L.C.1 contract · 1 agency
$46,800

All 1,487 suppliers in the line

Fastest-growing supplier in the line

same line
+719%growth

Supplier UEI JXGZBLGBA996

2024 to date
$55,359,292
2022–2023
$6,758,022

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.