United States · Federal contract register · Supplier record

ROBERT COSTELLO ARBITRATION SERVICES, LLC

Line: Professional, legal (R418)Register loaded to September 2026Compiled 17 October 2026

ROBERT COSTELLO ARBITRATION SERVICES, LLC — United States · Federal contract register · Supplier record: 13 contracts, all years ($46,019 · Apr 2021 – Jan 2026); $39.2K since January 2024 (10 contracts · 2 agencies); 543rd rank in the line (of 954 suppliers · 0.0%); 47 agencies never served ($1.2B on the line without ROBERT COSTELLO ARBITRATION SERVICES, LLC).

Assay record ASY-US-1P982G701X · Cite as: Assay Systems, “ROBERT COSTELLO ARBITRATION SERVICES, LLC: 10 government contracts in the United States since 2024”, https://assay-systems.com/register/us/robert-costello-arbitration-services-llc/

13
contracts, all years
$46,019 · Apr 2021 – Jan 2026
$39.2K
since January 2024
10 contracts · 2 agencies
543rd
rank in the line
of 954 suppliers · 0.0%
47
agencies never served
$1.2B on the line without ROBERT COSTELLO ARBITRATION SERVICES, LLC

Own record by year

2021 onward
$6.9K
$6.2K
$25.1K
$7.9K
202120222023202420252026

Who buys from ROBERT COSTELLO ARBITRATION SERVICES, LLC

since January 2024
2agencies
$39.2Kpaid
96.2%top buyer
Department of the Treasury96.2%
$37,662
Department of Transportation3.8%
$1,500

Won without a rival

2023-10-10 – 2026-01-29
12uncontested awards
100%of its awards
12without a competition
0single bid

ROBERT COSTELLO ARBITRATION SERVICES, LLC won 12 of its 12 public contract awards in United States without a rival from 2023-10-10 to 2026-01-29, worth $35.5K: 12 without a competition and 0 after a competition that drew a single bid. 2 buyers awarded it without a rival, the largest Internal Revenue Service with 11.

Buyers: Internal Revenue Service (11) · Federal Aviation Administration (1)

Every uncontested award of ROBERT COSTELLO ARBITRATION SERVICES, LLC · United States: all uncontested awards

The line

since January 2024
$1.3Bline value
3,942contracts
49agencies
954suppliers
65.1%held by top ten

Professional, legal (R418)

$364M
$566M
$340M
202420252026Jan–Sep
543rdof 954 suppliers
$39,162ROBERT COSTELLO ARBITRATION SERVICES, LLC in the line
0.0%share of the line
0.4%of $9,477,251 spent by Department of the Treasury
0.0%of $10,753,512 spent by Department of Transportation

Agencies that buy the line and never bought from ROBERT COSTELLO ARBITRATION SERVICES, LLC

47agencies
3,797contracts
$1,248,963,764since January 2024
Department of Health and Human Services284 contracts
$567,277,181
Department of Justice1,347 contracts
$344,876,172
Department of Defense195 contracts
$67,917,967
Equal Employment Opportunity Commission385 contracts
$39,389,278
U.S. International Development Finance Corporation168 contracts
$37,667,309
Department of Veterans Affairs119 contracts
$23,443,253
Federal Trade Commission1 contract
$23,393,531
Department of State295 contracts
$21,399,719
Export-Import Bank of the United States63 contracts
$17,013,437
Department of Homeland Security551 contracts
$16,562,021
Department of Education29 contracts
$15,280,741
Department of Agriculture112 contracts
$14,333,427
Department of Energy31 contracts
$13,955,346
District of Columbia Courts6 contracts
$13,111,632
Pension Benefit Guaranty Corporation12 contracts
$5,840,816
Securities and Exchange Commission6 contracts
$3,857,485
General Services Administration7 contracts
$3,242,899
Department of Labor53 contracts
$2,748,607
Department of Housing and Urban Development4 contracts
$1,940,297
Environmental Protection Agency5 contracts
$1,803,164
Social Security Administration4 contracts
$1,551,324
Executive Office of the President4 contracts
$1,485,338
Department of the Interior13 contracts
$1,304,165
Nuclear Regulatory Commission5 contracts
$1,271,551
Department of Commerce24 contracts
$1,238,624
Government Accountability Office6 contracts
$1,141,913
National Science Foundation1 contract
$858,089
Millennium Challenge Corporation2 contracts
$644,630
United States Chemical Safety Board3 contracts
$631,217
Agency for International Development10 contracts
$615,537
Federal Election Commission1 contract
$518,932
Consumer Financial Protection Bureau4 contracts
$418,517
Smithsonian Institution9 contracts
$366,526
Occupational Safety and Health Review Commission4 contracts
$349,684
National Endowment for the Humanities3 contracts
$299,000
International Trade Commission3 contracts
$239,191
Selective Service System3 contracts
$166,770
Peace Corps1 contract
$158,784
Court Services and Offender Supervision Agency3 contracts
$147,323
Defense Nuclear Facilities Safety Board1 contract
$86,050
National Archives and Records Administration7 contracts
$74,836
U.S. Agency for Global Media4 contracts
$70,605
National Aeronautics and Space Administration4 contracts
$68,686
Small Business Administration2 contracts
$62,454
Merit Systems Protection Board1 contract
$58,545
Federal Communications Commission1 contract
$50,400
National Gallery of Art1 contract
$30,794

How the line is bought

by value, since 2024
28%no competition
36%one applicant
0of these to ROBERT COSTELLO ARBITRATION SERVICES, LLC
Competed, one supplier applied1,057 contracts
$462,102,617 · 36.4%
Competed, several suppliers applied1,091 contracts
$448,518,491 · 35.3%
Awarded directly, no competition1,794 contracts
$358,573,419 · 28.3%

Contracts reaching their end dates

Oct 2026 – October 2027
895contracts
$515,952,644end by October 2027
110end in July 2027 · $57.2M
867in agencies never served · $504M
$3.9M
$9.8M
$38.9M
$8.3M
$168M
$36.1M
$9.0M
$58.9M
$46.4M
$57.2M
$18.5M
$61.3M
Oct 2622 contractsNov 2641 contractsDec 2693 contractsJan 2768 contractsFeb 2762 contractsMar 2791 contractsApr 2765 contractsMay 2773 contractsJun 2788 contractsJul 27110 contractsAug 2774 contractsSep 27108 contracts

Suppliers next to it in the line

since January 2024
BATES WHITE, LLC1 contract · 1 agency
$40,000
FRB CONSULTING, LLC1 contract · 1 agency
$40,000
AMIN FOR LAW AND ARBITRATION1 contract · 1 agency
$39,680
ROBERT COSTELLO ARBITRATION SERVICES, LLC
$39,162

All 954 suppliers in the line

Fastest-growing supplier in the line

same line
+33%growth

Supplier UEI JENBF1KKWZ93

2024 to Sep 2026
$157,243,183
2022–2023
$118,203,421

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.