Top 100 Contractors in PSC R6: Administrative Support Services, Aug 2025–Jul 2026

Name: Top 100 Contractors in PSC R6: Administrative Support Services, Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in PSC R6: Administrative Support Services, FY2025.

The top 10 won 28% of PSC R6 contract dollars from August 2025 through July 2026

Contract obligations: $4,976,658,254 Net of deobligations, by contracts coded PSC R6 or a code under it
Contractors: 3,029 Parent companies with an obligation
Largest contractor: Fedex Corp $414 million, 7.6% of obligations
Data as of: Nov 5, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Fedex Corp 5 awardees, including Fedex Supply Chain Distribution System, Inc., Federal Express Corporation and Fedex Custom Critical Inc. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) DOJ (Department of Justice)	$414,110,822	7.6%	Rank history: #3 in FY2021, #3 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; up 1 since Aug 2024–Jul 2025.
2	CACI International Inc. 5 awardees, including Caci, Inc. - Federal, Caci, LLC - Commercial and Caci-Iss, LLC Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security) DOJ (Department of Justice)	$318,101,832	5.8%	Rank history: #4 in FY2021, #6 in FY2022, #4 in FY2023, #4 in FY2024 and #4 in FY2025; up 2 since Aug 2024–Jul 2025.
3	Peraton Risk Decision Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$245,744,318	4.5%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #3 in FY2025; unchanged since Aug 2024–Jul 2025.
4	Sos International LLC Top agencies DOJ (Department of Justice) USAF (Department of the Air Force)	$113,980,283	2.1%	Rank history: not on the FY2021 list, #30 in FY2022, #7 in FY2023, #17 in FY2024 and #6 in FY2025; up 3 since Aug 2024–Jul 2025.
5	Brillient Corporation Top agencies DHS (Department of Homeland Security)	$107,535,632	2.0%	Rank history: #7 in FY2021, #51 in FY2022, #9 in FY2023, #11 in FY2024 and #9 in FY2025; up 6 since Aug 2024–Jul 2025.
6	Deloitte 3 awardees, including Deloitte Consulting LLP, Deloitte Financial Advisory Services LLP and Deloitte & Touche LLP Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) DOS (Department of State)	$86,803,917	1.6%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #7 in FY2025; up 3 since Aug 2024–Jul 2025.
7	ADC Ltd NM Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation)	$61,173,779	1.1%	Rank history: #55 in FY2021, #38 in FY2022, #24 in FY2023, #19 in FY2024 and #23 in FY2025; up 26 since Aug 2024–Jul 2025.
8	Arctic Slope Regional Corporation 7 awardees, including Asrc Federal Administrative Services, LLC, Asrc Federal Facilities Logistics LLC and Broadleaf, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) Navy (Department of the Navy) DOJ (Department of Justice)	$60,867,934	1.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023, #40 in FY2024 and #53 in FY2025; up 172 since Aug 2024–Jul 2025.
9	Trace Systems, Inc. Top agencies Army (Department of the Army)	$59,658,160	1.1%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
10	Guidehouse Inc. 3 awardees, including Peraton Enterprise Solutions LLC Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) DOE (Department of Energy)	$59,591,499	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
11	United Parcel Service, Inc. 3 awardees Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) DOJ (Department of Justice)	$57,794,201	1.1%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12	Insurance Auto Auctions, Inc. Top agencies GSA (General Services Administration)	$53,799,092	1.0%	Rank history: not on the FY2021–FY2025 lists; up 356 since Aug 2024–Jul 2025.
13	Servicesource Inc. 3 awardees, including Employment Source Inc. Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$52,146,588	1.0%	Rank history: #16 in FY2021, #18 in FY2022, #16 in FY2023, #16 in FY2024 and #17 in FY2025; up 12 since Aug 2024–Jul 2025.
14	McKesson Corporation Through Mckesson Specialty Distribution LLC Top agencies HHS (Department of Health and Human Services)	$51,046,412	0.9%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; down 2 since Aug 2024–Jul 2025.
15	Peraton Inc. Through Peraton Enterprise Solutions LLC Top agencies DHA (Defense Health Agency)	$50,477,061	0.9%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #10 in FY2025; down 9 since Aug 2024–Jul 2025.
16	Dun & Bradstreet, Inc. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$44,639,195	0.8%	Rank history: not on the FY2021 list, #39 in FY2022, not on the FY2023 list, #84 in FY2024 and #100 in FY2025; up 84 since Aug 2024–Jul 2025.
17	Edfinancial Services LLC Top agencies ED (Department of Education)	$43,979,647	0.8%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; up 6 since Aug 2024–Jul 2025.
18	F.h. Cann & Associates, Inc. Top agencies ED (Department of Education)	$43,340,007	0.8%	Rank history: not on the FY2021–FY2024 lists and #14 in FY2025; down 2 since Aug 2024–Jul 2025.
19	DLH Holdings Corp Through DLH Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$41,727,937	0.8%	Rank history: #13 in FY2021, #13 in FY2022, #11 in FY2023, #6 in FY2024 and #5 in FY2025; down 11 since Aug 2024–Jul 2025.
20	Credence Management Solutions Limited Liability Company Top agencies USAID (US Agency for International Development)	$38,048,950	0.7%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #28 in FY2025; down 15 since Aug 2024–Jul 2025.
21	Iron Mountain Information Management LLC Top agencies DHS (Department of Homeland Security) USAID (US Agency for International Development) VA (Department of Veterans Affairs)	$37,881,721	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
22	The Timken Company Through CGI Federal Inc. Top agencies DOJ (Department of Justice)	$37,802,737	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
23	QED Enterprises Inc. Top agencies DHS (Department of Homeland Security)	$35,181,391	0.6%	Rank history: not on the FY2021 list, #40 in FY2022, #19 in FY2023, #26 in FY2024 and #25 in FY2025; down 5 since Aug 2024–Jul 2025.
24	Bowhead Marine Support Services, LLC 2 awardees Top agencies DHA (Defense Health Agency) DHS (Department of Homeland Security)	$33,920,346	0.6%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #21 in FY2025; down 3 since Aug 2024–Jul 2025.
25	American Chemical Society Top agencies Commerce (Department of Commerce)	$32,377,603	0.6%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Aug 2024–Jul 2025.
26	Mayvin, Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services)	$31,945,074	0.6%	Rank history: not on the FY2021 list, #37 in FY2022, #33 in FY2023, #27 in FY2024 and #27 in FY2025; down 2 since Aug 2024–Jul 2025.
27	Project Enhancement Corporation Top agencies DOE (Department of Energy)	$31,122,258	0.6%	Rank history: #68 in FY2021, #27 in FY2022, #21 in FY2023, #21 in FY2024 and #19 in FY2025; down 10 since Aug 2024–Jul 2025.
28	Metlang LLC Top agencies DOJ (Department of Justice)	$30,015,681	0.6%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023, #25 in FY2024 and #24 in FY2025; down 8 since Aug 2024–Jul 2025.
29	CGI Federal Inc. Top agencies DOJ (Department of Justice)	$28,331,042	0.5%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #8 in FY2025; down 19 since Aug 2024–Jul 2025.
30	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) DOJ (Department of Justice)	$27,405,837	0.5%	Rank history: #65 in FY2021, #70 in FY2022, #44 in FY2023, #29 in FY2024 and #30 in FY2025; down 1 since Aug 2024–Jul 2025.
31	Nana Regional Corporation, Inc. 8 awardees, including Five Rivers Analytics, LLC, TKC Global Solutions, LLC and Rivertech LLC Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) DOE (Department of Energy)	$26,648,511	0.5%	Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; up 54 since Aug 2024–Jul 2025.
32	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$24,824,965	0.5%	Rank history: #10 in FY2021, #16 in FY2022, #13 in FY2023, #13 in FY2024 and #48 in FY2025; down 4 since Aug 2024–Jul 2025.
33	Sancorp Consulting, LLC Top agencies OSD (Office of the Secretary of Defense)	$24,510,574	0.5%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; up 105 since Aug 2024–Jul 2025.
34	The Building People LLC Top agencies DOE (Department of Energy)	$24,021,875	0.4%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023, #24 in FY2024 and #38 in FY2025; up 2 since Aug 2024–Jul 2025.
35	Millbrook Support Services Inc. Top agencies VA (Department of Veterans Affairs)	$23,772,840	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
36	Cherokee Nation 10 awardees, including Cherokee Nation Solutions Link, L.L.C., Cherokee Nation Defense Solutions LLC and Cherokee Federal Solutions, L.L.C. Top agencies DOS (Department of State) USAF (Department of the Air Force) DOE (Department of Energy)	$23,372,658	0.4%	Rank history: #18 in FY2021, #34 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
37	Cox Subscriptions, Inc. Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$23,136,483	0.4%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #39 in FY2025; up 16 since Aug 2024–Jul 2025.
38	The Kace Company, Llc. Top agencies DHS (Department of Homeland Security)	$23,003,617	0.4%	Rank history: #34 in FY2021, #26 in FY2022, #45 in FY2023, #45 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
39	Koniag Brillient, LLC Top agencies DHS (Department of Homeland Security)	$22,801,183	0.4%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; down 4 since Aug 2024–Jul 2025.
40	Powder River Industries, LLC Top agencies DOE (Department of Energy)	$22,509,616	0.4%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; up 52 since Aug 2024–Jul 2025.
41	Worldwide Language Resources, LLC Top agencies Army (Department of the Army)	$22,235,000	0.4%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #18 in FY2025; down 10 since Aug 2024–Jul 2025.
42	Colsa Corp Top agencies NASA (National Aeronautics and Space Administration)	$22,207,926	0.4%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #31 in FY2025; down 16 since Aug 2024–Jul 2025.
43	Constellis, LLC 2 awardees, including Omniplex World Services Corporation Top agencies DHS (Department of Homeland Security)	$21,796,954	0.4%	Rank history: not on the FY2021–FY2023 lists, #85 in FY2024 and #81 in FY2025; up 63 since Aug 2024–Jul 2025.
44	1 - 8A Iso9001 Fedsync-Bfs, LLC Top agencies NASA (National Aeronautics and Space Administration)	$21,129,989	0.4%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; up 38 since Aug 2024–Jul 2025.
45	IEM International, Inc. Top agencies DHS (Department of Homeland Security)	$20,550,734	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
46	Versability Resources, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$20,309,386	0.4%	Rank history: #72 in FY2021, #58 in FY2022, #89 in FY2023, #50 in FY2024 and #54 in FY2025; up 11 since Aug 2024–Jul 2025.
47	Ernst & Young LLP 3 awardees, including Dignari, LLC Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) DOE (Department of Energy)	$19,014,613	0.3%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #44 in FY2025; up 50 since Aug 2024–Jul 2025.
48	Capital Center for Credibility Assessment Corporation Top agencies DHS (Department of Homeland Security)	$18,592,254	0.3%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 142 since Aug 2024–Jul 2025.
49	Pgls LLC Top agencies DOJ (Department of Justice)	$18,497,408	0.3%	Rank history: #30 in FY2021, #23 in FY2022, #23 in FY2023, #22 in FY2024 and #35 in FY2025; down 19 since Aug 2024–Jul 2025.
50	Goodwill Industries of San Antonio Contract Services Top agencies USAF (Department of the Air Force)	$18,371,677	0.3%	Rank history: #22 in FY2021, #29 in FY2022, #61 in FY2023, #68 in FY2024 and #59 in FY2025; up 22 since Aug 2024–Jul 2025.
51	Ebsco Industries Inc. 4 awardees, including Ebsco Information Services, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Treasury (Department of the Treasury)	$18,158,950	0.3%	Rank history: #73 in FY2021, #74 in FY2022, not on the FY2023–FY2024 lists and #55 in FY2025; up 331 since Aug 2024–Jul 2025.
52	Sciolex Corporation Top agencies DHS (Department of Homeland Security)	$17,795,332	0.3%	Rank history: #12 in FY2021, #12 in FY2022, #31 in FY2023, #39 in FY2024 and #32 in FY2025; down 20 since Aug 2024–Jul 2025.
53	Lockheed Martin Corporation Through Lockheed Martin Integrated Systems, LLC Top agencies NASA (National Aeronautics and Space Administration)	$17,574,460	0.3%	Rank history: #20 in FY2021, #31 in FY2022, #46 in FY2023, #59 in FY2024 and #34 in FY2025; new, not ranked in Aug 2024–Jul 2025.
54	Stratcomm Inc. Top agencies SSA (Social Security Administration)	$17,279,844	0.3%	Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #46 in FY2025; down 13 since Aug 2024–Jul 2025.
55	Celerity Government Solutions LLC Top agencies DHS (Department of Homeland Security)	$16,765,807	0.3%	Rank history: not on the FY2021–FY2025 lists; up 258 since Aug 2024–Jul 2025.
56	United Language Group Operations Inc. Through Language Select, LLC Top agencies SSA (Social Security Administration)	$16,625,615	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57	Lionbridge Global Solutions II Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$16,569,709	0.3%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 95 since Aug 2024–Jul 2025.
58	Iworks Corp Top agencies DCSA (Defense Counterintelligence and Security Agency)	$16,473,958	0.3%	Rank history: #33 in FY2021, #56 in FY2022, not on the FY2023–FY2024 lists and #51 in FY2025; down 20 since Aug 2024–Jul 2025.
59	Quality Support, Inc. Top agencies DOS (Department of State)	$16,414,392	0.3%	Rank history: #77 in FY2021, #89 in FY2022, not on the FY2023 list, #47 in FY2024 and not on the FY2025 list; up 420 since Aug 2024–Jul 2025.
60	Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top agencies USAF (Department of the Air Force)	$15,814,670	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
61	Virtual Computing Technology Inc Top agencies Navy (Department of the Navy)	$15,745,612	0.3%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; up 3 since Aug 2024–Jul 2025.
62	Lexisnexis Special Services Inc 7 awardees, including Relx Inc., Elsevier Inc. and Lexisnexis Risk Solutions Inc. Top agencies Commerce (Department of Commerce) DOJ (Department of Justice) FTC (Federal Trade Commission)	$15,695,644	0.3%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #63 in FY2025; down 17 since Aug 2024–Jul 2025.
63	Ukpeagvik Inupiat Corporation 4 awardees, including Bowhead Program Management & Operations, LLC, Bowhead Global Systems and Technology, LLC and Bowhead Information Technology Service LLC Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) USAF (Department of the Air Force)	$15,320,928	0.3%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; new, not ranked in Aug 2024–Jul 2025.
64	Experian Holdings Inc. 2 awardees, including Experian Information Solutions, Inc. Top agencies SBA (Small Business Administration) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$15,099,895	0.3%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #41 in FY2025; down 12 since Aug 2024–Jul 2025.
65	Nakupuna Prime, LLC Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service) DOD (Department of Defense)	$14,966,951	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	Clear Global Solutions LLC Top agencies DHS (Department of Homeland Security) DOE (Department of Energy) EPA (Environmental Protection Agency)	$14,616,458	0.3%	Rank history: not on the FY2021–FY2025 lists; up 203 since Aug 2024–Jul 2025.
67	Pn-Heitech, LLC Top agencies HHS (Department of Health and Human Services)	$14,269,077	0.3%	Rank history: #63 in FY2021, #76 in FY2022, #66 in FY2023, #60 in FY2024 and #64 in FY2025; down 7 since Aug 2024–Jul 2025.
68	Techop Solutions International, Inc. Top agencies DHS (Department of Homeland Security) NRC (Nuclear Regulatory Commission)	$14,219,019	0.3%	Rank history: #69 in FY2021, #66 in FY2022, #74 in FY2023, #73 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
69	Amazon Web Services, Inc. Top agencies Navy (Department of the Navy)	$14,126,561	0.3%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; down 47 since Aug 2024–Jul 2025.
70	Street Legal Industries LLC Top agencies DOE (Department of Energy) Army (Department of the Army)	$13,720,106	0.3%	Rank history: not on the FY2021 list, #84 in FY2022, #78 in FY2023, #56 in FY2024 and #67 in FY2025; down 11 since Aug 2024–Jul 2025.
71	Bering Straits Native Corporation 7 awardees, including Kapili Services, LLC, Kupono Government Services, LLC and Kikaha Solutions, LLC Top agencies Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency) USAF (Department of the Air Force)	$13,625,605	0.3%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72	Conrad LLP Top agencies HHS (Department of Health and Human Services)	$13,526,258	0.2%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023, #62 in FY2024 and #68 in FY2025; down 14 since Aug 2024–Jul 2025.
73	Zemitek LLC Top agencies USAID (US Agency for International Development)	$13,450,622	0.2%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; up 136 since Aug 2024–Jul 2025.
74	Togiak Management Services, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$13,313,277	0.2%	Rank history: not on the FY2021–FY2025 lists; up 50 since Aug 2024–Jul 2025.
75	Crosstown Courier Service Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) DHA (Defense Health Agency)	$13,225,320	0.2%	Rank history: #76 in FY2021, #80 in FY2022, #79 in FY2023, #100 in FY2024 and #73 in FY2025; down 4 since Aug 2024–Jul 2025.
76	The Cadmus Group LLC Top agencies DHS (Department of Homeland Security)	$13,116,179	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77	The Chenega Corporation 10 awardees, including Chenega Government Mission Solutions, LLC, Ajanta Consulting LLC and Chenega Enterprise Systems & Solutions, LLC Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) Navy (Department of the Navy)	$12,819,954	0.2%	Rank history: not on the FY2021 list, #68 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78	Leumas Residential LLC Top agencies HUD (Department of Housing and Urban Development)	$12,296,166	0.2%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023, #43 in FY2024 and #50 in FY2025; down 38 since Aug 2024–Jul 2025.
79	Edge Ops LLC Top agencies DHS (Department of Homeland Security)	$12,210,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
80	Rack-Wildner & Reese, Inc. Top agencies DOE (Department of Energy)	$12,128,610	0.2%	Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and not on the FY2025 list; up 1 since Aug 2024–Jul 2025.
81	Braille Works International Inc. Top agencies SSA (Social Security Administration)	$11,963,306	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	Tatitlek Management Services, LLC Top agencies MDA (DOD Missile Defense Agency)	$11,707,278	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83	Amentum Holdings, Inc. 2 awardees, including Amentum Services, Inc. and PAE Government Services, Inc. Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice)	$11,620,593	0.2%	Rank history: not on the FY2021–FY2025 lists; up 84 since Aug 2024–Jul 2025.
84	Amivero LLC Top agencies GSA (General Services Administration)	$11,608,612	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
85	Seven Corners Inc. Top agencies DOJ (Department of Justice)	$11,502,773	0.2%	Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #69 in FY2025; down 35 since Aug 2024–Jul 2025.
86	Edgewater Federal Solutions, Inc. Top agencies DOE (Department of Energy)	$11,457,733	0.2%	Rank history: not on the FY2021 list, #96 in FY2022 and not on the FY2023–FY2025 lists; up 109 since Aug 2024–Jul 2025.
87	Techtrans International Inc. Top agencies NASA (National Aeronautics and Space Administration)	$10,939,630	0.2%	Rank history: #41 in FY2021, #52 in FY2022, not on the FY2023–FY2024 lists and #92 in FY2025; down 4 since Aug 2024–Jul 2025.
88	Seventh Sense, LLC Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation)	$10,798,624	0.2%	Rank history: #83 in FY2021, not on the FY2022–FY2023 lists, #72 in FY2024 and #77 in FY2025; down 11 since Aug 2024–Jul 2025.
89	Koniag, Inc. 7 awardees, including Koniag Advisory and Business Solutions, LLC, Arlluk Technology Solutions LLC and Koniag Management Solutions LLC Top agencies HHS (Department of Health and Human Services) DISA (Defense Information Systems Agency) DOS (Department of State)	$10,765,628	0.2%	Rank history: #26 in FY2021, #41 in FY2022, #28 in FY2023, #38 in FY2024 and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
90	Ivyhill Technologies LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) DOJ (Department of Justice)	$10,558,789	0.2%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; up 1 since Aug 2024–Jul 2025.
91	Peckham Vocational Industries Inc. Top agencies DLA (Defense Logistics Agency)	$10,426,501	0.2%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; down 18 since Aug 2024–Jul 2025.
92	ICF International Inc. 4 awardees, including Semanticbits LLC, ICF Incorporated, L.L.C. and Creative Systems and Consulting L.L.C. Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor) Commerce (Department of Commerce)	$10,409,264	0.2%	Rank history: not on the FY2021–FY2025 lists; up 63 since Aug 2024–Jul 2025.
93	Maximus Federal Services, Inc. Top agencies OPM (Office of Personnel Management)	$10,331,215	0.2%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; down 50 since Aug 2024–Jul 2025.
94	Artex Group LLC 2 awardees, including Acxentra LLC Top agencies DOJ (Department of Justice)	$10,236,479	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
95	Delta Solutions & Strategies LLC Top agencies USAF (Department of the Air Force)	$10,082,993	0.2%	Rank history: not on the FY2021–FY2025 lists; up 101 since Aug 2024–Jul 2025.
96	Clear Lincs LLC Top agencies GSA (General Services Administration)	$9,921,067	0.2%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023, #91 in FY2024 and not on the FY2025 list; down 26 since Aug 2024–Jul 2025.
97	Missouri Higher Education Loan Authority Top agencies ED (Department of Education)	$9,835,721	0.2%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; down 55 since Aug 2024–Jul 2025.
98	Synensys, LLC Top agencies DHA (Defense Health Agency)	$9,515,666	0.2%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; unchanged since Aug 2024–Jul 2025.
99	Coventbridge (USA) LLC Top agencies USDA (Department of Agriculture)	$9,386,986	0.2%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and #88 in FY2025; new, not ranked in Aug 2024–Jul 2025.
100	FG Management Group LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$9,211,805	0.2%	Rank history: not on the FY2021–FY2025 lists; up 120 since Aug 2024–Jul 2025.

Show 75 more

100 of 3,029 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC R6

Code	Net obligations	Largest contractor
R699 Other Administrative Support Services	$2,332,771,525	Brillient Corporation
R615 Support – Administrative: Background Investigation	$791,095,343	CACI International Inc.
R604 Mailing and Distribution Services	$708,338,055	Fedex Corp
R608 Translation and Interpreting Services(Including Sign Language)	$362,895,035	Sos International LLC
R612 Information Retrieval	$168,611,377	Edge Ops LLC
R605 Library Services	$124,576,268	American Chemical Society
R617 Administrative Support Services	$95,167,183	Iron Mountain Information Management LLC
R610 Personal Property Management Services	$79,420,544	Insurance Auto Auctions, Inc.
R602 Courier and Messenger Services	$75,536,661	Crosstown Courier Service Inc.
R603 Transcription Services	$49,976,065	Stratcomm Inc.
R616 Administrative Support Services	$49,593,629	Iron Mountain Information Management LLC
R614 Paper Shredding Services	$25,542,898	Dunlap Government Solutions, LLC
R606 Court Reporting Services	$18,286,657	Diversified Reporting Services, Inc.

How this ranking works

Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $5.44 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Aug 2024–Jul 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC R6 contractors in Aug 2025–Jul 2026?

1. Fedex Corp ($414M), 2. CACI International Inc. ($318M), 3. Peraton Risk Decision Inc. ($246M), 4. Sos International LLC ($114M), 5. Brillient Corporation ($108M), 6. Deloitte ($86.8M), 7. ADC Ltd NM ($61.2M), 8. Arctic Slope Regional Corporation ($60.9M), 9. Trace Systems, Inc. ($59.7M), 10. Guidehouse Inc. ($59.6M).

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