Top 100 Contractors in PSC R6: Administrative Support Services, FY2025

Name: Top 100 Contractors in PSC R6: Administrative Support Services, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 36% of FY2025 PSC R6 contract dollars

Contract obligations: $5,745,516,249 Net of deobligations, by contracts coded PSC R6 or a code under it
Contractors: 3,535 Parent companies with an obligation
Largest contractor: Ministry of Defense $862 million, 13.6% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Ministry of Defense Top agencies Navy (Department of the Navy)	$861,627,503	13.6%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Fedex Corp 6 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)	$400,593,106	6.3%	Rank history: #3 in FY2021, #3 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Peraton Risk Decision Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$293,181,902	4.6%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; up 2 since FY2024.
4	CACI International Inc. 4 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)	$275,872,863	4.3%	Rank history: #4 in FY2021, #6 in FY2022, #4 in FY2023 and #4 in FY2024; unchanged since FY2024.
5	Teamstaff Inc. 2 awardees, including DLH Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$90,903,016	1.4%	Rank history: #13 in FY2021, #13 in FY2022, #11 in FY2023 and #6 in FY2024; up 1 since FY2024.
6	Sos International LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$82,128,875	1.3%	Rank history: not on the FY2021 list, #30 in FY2022, #7 in FY2023 and #17 in FY2024; up 11 since FY2024.
7	Deloitte 3 awardees, including Deloitte Consulting LLP, Deloitte & Touche LLP and Deloitte Financial Advisory Services LLP Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) DOE (Department of Energy)	$81,386,637	1.3%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; up 3 since FY2024.
8	CGI Federal Inc. Top agencies DOJ (Department of Justice)	$71,244,600	1.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 49 since FY2024.
9	Brillient Corporation Top agencies DHS (Department of Homeland Security)	$69,658,268	1.1%	Rank history: #7 in FY2021, #51 in FY2022, #9 in FY2023 and #11 in FY2024; up 2 since FY2024.
10	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$63,844,578	1.0%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2024; down 2 since FY2024.
11	McKesson Corporation Through Mckesson Specialty Distribution LLC Top agencies HHS (Department of Health and Human Services)	$61,548,000	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
12	Trace Systems, Inc. Top agencies Army (Department of the Army)	$59,693,216	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
13	United Parcel Service Co. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) DOJ (Department of Justice)	$57,687,232	0.9%	Rank history: #23 in FY2021, #22 in FY2022, #12 in FY2023 and #14 in FY2024; up 1 since FY2024.
14	F.h. Cann & Associates, Inc. Top agencies ED (Department of Education)	$57,339,388	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
15	Edfinancial Services LLC Top agencies ED (Department of Education)	$52,810,865	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
16	Management Solutions LLC Top agencies DOE (Department of Energy)	$51,941,047	0.8%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and #32 in FY2024; up 16 since FY2024.
17	Servicesource Inc. 2 awardees Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$47,269,800	0.7%	Rank history: #16 in FY2021, #18 in FY2022, #16 in FY2023 and #16 in FY2024; down 1 since FY2024.
18	Worldwide Language Resources, LLC Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command)	$42,749,369	0.7%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; up 13 since FY2024.
19	Project Enhancement Corporation Top agencies DOE (Department of Energy)	$38,398,946	0.6%	Rank history: #68 in FY2021, #27 in FY2022, #21 in FY2023 and #21 in FY2024; up 2 since FY2024.
20	ITC Federal, LLC Top agencies DHS (Department of Homeland Security)	$37,694,691	0.6%	Rank history: #17 in FY2021, #21 in FY2022, #6 in FY2023 and #9 in FY2024; down 11 since FY2024.
21	Bowhead Marine Support Services, LLC 2 awardees Top agencies DHA (Defense Health Agency) DHS (Department of Homeland Security)	$35,585,874	0.6%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2024; up 59 since FY2024.
22	Amazon Web Services, Inc. Top agencies Navy (Department of the Navy)	$34,000,000	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
23	ADC Ltd NM Top agencies DHS (Department of Homeland Security)	$33,467,939	0.5%	Rank history: #55 in FY2021, #38 in FY2022, #24 in FY2023 and #19 in FY2024; down 4 since FY2024.
24	Metlang LLC Top agencies DOJ (Department of Justice)	$33,383,441	0.5%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #25 in FY2024; up 1 since FY2024.
25	QED Enterprises Inc. Top agencies DHS (Department of Homeland Security)	$33,141,105	0.5%	Rank history: not on the FY2021 list, #40 in FY2022, #19 in FY2023 and #26 in FY2024; up 1 since FY2024.
26	Mayvin, Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services)	$32,350,359	0.5%	Rank history: not on the FY2021 list, #37 in FY2022, #33 in FY2023 and #27 in FY2024; up 1 since FY2024.
27	Credence Management Solutions Limited Liability Company Top agencies USAID (US Agency for International Development)	$31,108,778	0.5%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 24 since FY2024.
28	Missouri Higher Education Loan Authority Top agencies ED (Department of Education)	$28,099,025	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
29	Leidos Holdings, Inc. 5 awardees, including Leidos, Inc. Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy) DOJ (Department of Justice)	$27,619,946	0.4%	Rank history: #65 in FY2021, #70 in FY2022, #44 in FY2023 and #29 in FY2024; unchanged since FY2024.
30	Colsa Corp Top agencies NASA (National Aeronautics and Space Administration)	$27,228,141	0.4%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; down 2 since FY2024.
31	Sciolex Corporation Top agencies DHS (Department of Homeland Security)	$25,462,121	0.4%	Rank history: #12 in FY2021, #12 in FY2022, #31 in FY2023 and #39 in FY2024; up 8 since FY2024.
32	Guardians of Honor, LLC Top agencies NASA (National Aeronautics and Space Administration) ED (Department of Education)	$25,263,583	0.4%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; up 4 since FY2024.
33	Lockheed Martin Corporation 3 awardees, including Lockheed Martin Integrated Systems, LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$23,969,822	0.4%	Rank history: #20 in FY2021, #31 in FY2022, #46 in FY2023 and #59 in FY2024; up 26 since FY2024.
34	Pgls LLC Top agencies DOJ (Department of Justice)	$23,651,776	0.4%	Rank history: #30 in FY2021, #23 in FY2022, #23 in FY2023 and #22 in FY2024; down 12 since FY2024.
35	Koniag Brillient, LLC Top agencies DHS (Department of Homeland Security)	$22,649,590	0.4%	Rank history: not on the FY2021–FY2024 lists; up 351 since FY2024.
36	Maximus Federal Services, Inc. Top agencies ED (Department of Education) OPM (Office of Personnel Management)	$22,078,002	0.3%	Rank history: not on the FY2021–FY2024 lists; up 154 since FY2024.
37	The Building People LLC Top agencies DOE (Department of Energy)	$21,598,815	0.3%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #24 in FY2024; down 13 since FY2024.
38	Cox Subscriptions, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$21,471,333	0.3%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 20 since FY2024.
39	Axient LLC Top agencies NASA (National Aeronautics and Space Administration)	$21,046,573	0.3%	Rank history: #19 in FY2021, #25 in FY2022, #27 in FY2023 and #37 in FY2024; down 2 since FY2024.
40	Experian Holdings Inc. 2 awardees, including Experian Information Solutions, Inc. Top agencies HHS (Department of Health and Human Services) SBA (Small Business Administration) USDA (Department of Agriculture)	$20,923,780	0.3%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 4 since FY2024.
41	Deployed Resources LLC Top agencies HHS (Department of Health and Human Services)	$19,943,644	0.3%	Rank history: not on the FY2021 list, #9 in FY2022, not on the FY2023 list and #23 in FY2024; down 18 since FY2024.
42	Ernst & Young LLP 2 awardees Top agencies GSA (General Services Administration)	$18,430,233	0.3%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; down 7 since FY2024.
43	Capital Center for Credibility Assessment Corporation Top agencies DHS (Department of Homeland Security)	$18,031,812	0.3%	Rank history: not on the FY2021–FY2024 lists; up 71 since FY2024.
44	Stratcomm Inc Top agencies SSA (Social Security Administration) CSB (Chemical Safety and Hazard Investigation Board)	$17,374,681	0.3%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2024; up 26 since FY2024.
45	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) Army (Department of the Army)	$17,096,438	0.3%	Rank history: #10 in FY2021, #16 in FY2022, #13 in FY2023 and #13 in FY2024; down 32 since FY2024.
46	United Language Group, Inc. Through Language Select, LLC Top agencies SSA (Social Security Administration)	$16,978,000	0.3%	Rank history: #38 in FY2021, #78 in FY2022, #81 in FY2023 and #96 in FY2024; up 50 since FY2024.
47	Leumas Residential LLC Top agencies HUD (Department of Housing and Urban Development)	$16,935,113	0.3%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and #43 in FY2024; down 4 since FY2024.
48	Iworks Corp Top agencies DCSA (Defense Counterintelligence and Security Agency)	$16,879,210	0.3%	Rank history: #33 in FY2021, #56 in FY2022 and not on the FY2023–FY2024 lists; up 87 since FY2024.
49	1 - 8A Iso9001 Fedsync-Bfs, LLC Top agencies NASA (National Aeronautics and Space Administration)	$16,443,196	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
50	Arctic Slope Regional Corporation 7 awardees, including Asrc Federal Facilities Logistics LLC, Asrc Federal Technology Solutions, LLC and Broadleaf, Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice) EPA (Environmental Protection Agency)	$16,224,931	0.3%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #40 in FY2024; down 10 since FY2024.
51	Versability Resources, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$16,045,450	0.3%	Rank history: #72 in FY2021, #58 in FY2022, #89 in FY2023 and #50 in FY2024; down 1 since FY2024.
52	Zemitek LLC Top agencies USAID (US Agency for International Development)	$14,899,375	0.2%	Rank history: not on the FY2021–FY2024 lists; up 369 since FY2024.
53	Virtual Computing Technology Inc Top agencies Navy (Department of the Navy)	$14,766,854	0.2%	Rank history: not on the FY2021–FY2024 lists; up 116 since FY2024.
54	Goodwill Industries of San Antonio Contract Services Top agencies USAF (Department of the Air Force)	$14,689,294	0.2%	Rank history: #22 in FY2021, #29 in FY2022, #61 in FY2023 and #68 in FY2024; up 14 since FY2024.
55	Magellan Federal Inc. Top agencies Navy (Department of the Navy)	$14,547,014	0.2%	Rank history: not on the FY2021–FY2024 lists; up 63 since FY2024.
56	Yorktown Systems Group Inc Top agencies MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$14,486,401	0.2%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 7 since FY2024.
57	Liberty Business Associates, LLC Top agencies Navy (Department of the Navy) DFAS (Defense Finance and Accounting Service)	$14,444,329	0.2%	Rank history: #82 in FY2021, #75 in FY2022, #70 in FY2023 and #51 in FY2024; down 6 since FY2024.
58	Pn-Heitech, LLC Top agencies HHS (Department of Health and Human Services)	$14,153,029	0.2%	Rank history: #63 in FY2021, #76 in FY2022, #66 in FY2023 and #60 in FY2024; up 2 since FY2024.
59	Ebsco Information Services, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) OSD (Office of the Secretary of Defense)	$14,145,214	0.2%	Rank history: not on the FY2021–FY2024 lists; up 204 since FY2024.
60	Relx Inc. 5 awardees, including Elsevier Inc., Lexisnexis Special Services Inc. and Lexisnexis Risk Solutions Inc. Top agencies Commerce (Department of Commerce) Treasury (Department of the Treasury) DOJ (Department of Justice)	$14,089,413	0.2%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 33 since FY2024.
61	Teya Enterprises LLC Top agencies Army (Department of the Army)	$13,938,002	0.2%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #55 in FY2024; down 6 since FY2024.
62	Sourceamerica Top agencies DHA (Defense Health Agency) Treasury (Department of the Treasury)	$13,704,923	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 2 since FY2024.
63	Street Legal Industries LLC Top agencies DOE (Department of Energy) Army (Department of the Army)	$13,603,214	0.2%	Rank history: not on the FY2021 list, #84 in FY2022, #78 in FY2023 and #56 in FY2024; down 7 since FY2024.
64	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 and #62 in FY2024; down 2 since FY2024.
65	Seven Corners Inc. Top agencies DOJ (Department of Justice)	$13,490,109	0.2%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; down 17 since FY2024.
66	Peckham Vocational Industries Inc. Top agencies DLA (Defense Logistics Agency)	$12,953,581	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
67	Sancorp Consulting, LLC Top agencies OSD (Office of the Secretary of Defense)	$12,877,226	0.2%	Rank history: not on the FY2021–FY2024 lists; up 272 since FY2024.
68	Senture LLC Top agencies CFPB (Consumer Financial Protection Bureau)	$12,869,329	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
69	Crosstown Courier Service Inc. Top agencies VA (Department of Veterans Affairs) DFAS (Defense Finance and Accounting Service) DHS (Department of Homeland Security)	$12,867,501	0.2%	Rank history: #76 in FY2021, #80 in FY2022, #79 in FY2023 and #100 in FY2024; up 31 since FY2024.
70	National Associates, Inc. Top agencies Treasury (Department of the Treasury)	$12,435,071	0.2%	Rank history: #78 in FY2021, not on the FY2022–FY2023 lists and #78 in FY2024; up 8 since FY2024.
71	Thomson Company Inc the Through West Publishing Corporation Top agencies DHS (Department of Homeland Security) CFPB (Consumer Financial Protection Bureau) FTC (Federal Trade Commission)	$11,697,764	0.2%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; up 15 since FY2024.
72	Seventh Sense, LLC Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation)	$11,639,591	0.2%	Rank history: #83 in FY2021, not on the FY2022–FY2023 lists and #72 in FY2024; unchanged since FY2024.
73	American Chemical Society Top agencies Commerce (Department of Commerce) OSD (Office of the Secretary of Defense)	$11,499,743	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
74	Rivertech LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$11,489,371	0.2%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 8 since FY2024.
75	Language Line Holdings Inc. Through Language Line, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) USDA (Department of Agriculture)	$11,413,321	0.2%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; down 14 since FY2024.
76	Constellis, LLC Through Omniplex World Services Corporation Top agencies DHS (Department of Homeland Security)	$11,288,528	0.2%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2024; up 9 since FY2024.
77	DNI Emerging Technologies, LLC Top agencies DOE (Department of Energy) HHS (Department of Health and Human Services)	$10,980,133	0.2%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 20 since FY2024.
78	Coastal Management Solutions Inc. Top agencies Navy (Department of the Navy)	$10,951,307	0.2%	Rank history: #40 in FY2021, #54 in FY2022, not on the FY2023 list and #71 in FY2024; down 7 since FY2024.
79	Future Technologies, Inc. Top agencies Navy (Department of the Navy)	$10,915,302	0.2%	Rank history: #53 in FY2021, #67 in FY2022, #99 in FY2023 and #52 in FY2024; down 27 since FY2024.
80	Great Hill Solutions, LLC Top agencies DHA (Defense Health Agency) DISA (Defense Information Systems Agency) DOJ (Department of Justice)	$10,904,994	0.2%	Rank history: not on the FY2021–FY2024 lists; up 113 since FY2024.
81	Ivyhill Technologies LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army) USAF (Department of the Air Force)	$10,455,124	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
82	LMI Consulting, LLC Top agencies OSD (Office of the Secretary of Defense)	$10,348,565	0.2%	Rank history: not on the FY2021 list, #50 in FY2022, #69 in FY2023 and #46 in FY2024; down 36 since FY2024.
83	Coventbridge (USA) LLC Top agencies USDA (Department of Agriculture)	$10,307,013	0.2%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; up 12 since FY2024.
84	Accenture Federal Services LLC 2 awardees Top agencies HHS (Department of Health and Human Services)	$10,208,592	0.2%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; down 64 since FY2024.
85	Inspiritec Inc. Top agencies Army (Department of the Army)	$10,139,165	0.2%	Rank history: not on the FY2021–FY2024 lists; up 55 since FY2024.
86	Controller Bay LLC Top agencies DHA (Defense Health Agency)	$10,055,862	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
87	Techtrans International Inc. Top agencies NASA (National Aeronautics and Space Administration)	$9,891,809	0.2%	Rank history: #41 in FY2021, #52 in FY2022 and not on the FY2023–FY2024 lists; up 21 since FY2024.
88	Bowhead Program Management & Operations, LLC Top agencies Navy (Department of the Navy)	$9,634,644	0.2%	Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
89	Weris, Inc. Top agencies DOT (Department of Transportation)	$9,472,062	0.1%	Rank history: not on the FY2021–FY2024 lists; up 21 since FY2024.
90	Powder River Industries, LLC Top agencies DOE (Department of Energy)	$9,428,516	0.1%	Rank history: not on the FY2021–FY2024 lists; up 14 since FY2024.
91	Array US Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency)	$9,256,132	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Potawatomi Training LLC Top agencies DHS (Department of Homeland Security)	$9,208,747	0.1%	Rank history: not on the FY2021–FY2024 lists; up 30 since FY2024.
93	Synensys, LLC Top agencies DHA (Defense Health Agency)	$9,164,878	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	Attainx Inc. Top agencies DOE (Department of Energy) USDA (Department of Agriculture)	$8,945,879	0.1%	Rank history: #57 in FY2021, #53 in FY2022, #76 in FY2023 and #98 in FY2024; up 4 since FY2024.
95	Iron Mountain Incorporated 4 awardees, including Iron Mountain Information Management LLC Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$8,860,643	0.1%	Rank history: not on the FY2021 list, #20 in FY2022, #63 in FY2023 and #18 in FY2024; down 77 since FY2024.
96	Lionbridge Global Solutions II Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Treasury (Department of the Treasury)	$8,828,495	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Dun & Bradstreet, Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$8,814,083	0.1%	Rank history: not on the FY2021 list, #39 in FY2022, not on the FY2023 list and #84 in FY2024; down 13 since FY2024.
98	Nana Regional Corporation, Inc. 5 awardees, including Akima Systems Engineering LLC and TKC Global Solutions, LLC Top agencies Navy (Department of the Navy) DOE (Department of Energy) USAF (Department of the Air Force)	$8,796,569	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Feea Childcare Services, Inc. Top agencies DHS (Department of Homeland Security) HUD (Department of Housing and Urban Development) DFC (International Development Finance Corporation)	$8,698,149	0.1%	Rank history: not on the FY2021–FY2024 lists; up 13 since FY2024.
100	Corporate Allocation Services, Inc. Top agencies DOE (Department of Energy)	$8,602,676	0.1%	Rank history: not on the FY2021–FY2024 lists; up 58 since FY2024.

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100 of 3,535 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	$3,344,712,674	Ministry of Defense
R604 Mailing and Distribution Services	$748,550,447	Fedex Corp
R615 Support – Administrative: Background Investigation	$700,516,854	Peraton Risk Decision Inc.
R608 Translation and Interpreting Services(Including Sign Language)	$385,136,754	Sos International LLC
R612 Information Retrieval	$115,704,684	Dun & Bradstreet, Inc.
R605 Library Services	$115,614,376	Cox Subscriptions, Inc.
R617 Administrative Support Services	$76,451,835	Pn-Heitech, LLC
R602 Courier and Messenger Services	$49,146,717	Crosstown Courier Service Inc.
R611 Credit Reporting Services	$49,030,423	Ernst & Young LLP
R616 Administrative Support Services	$39,472,666	Iron Mountain Incorporated
R610 Personal Property Management Services	$31,700,854	Leumas Residential LLC
R603 Transcription Services	$27,324,281	Stratcomm Inc
R614 Paper Shredding Services	$26,297,047	Sourceamerica
R606 Court Reporting Services	$13,808,266	Diversified Reporting Services, Inc.
R613 Post Office Services	$10,827,727	Chenega Defense & Aerospace Solutions, LLC

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 $6.35 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. 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.
Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2024. "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. The step from FY2024 takes the color of the rank change beside it.
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 FY2025?

1. Ministry of Defense ($862M), 2. Fedex Corp ($401M), 3. Peraton Risk Decision Inc. ($293M), 4. CACI International Inc. ($276M), 5. Teamstaff Inc. ($90.9M), 6. Sos International LLC ($82.1M), 7. Deloitte ($81.4M), 8. CGI Federal Inc. ($71.2M), 9. Brillient Corporation ($69.7M), 10. Peraton Inc. ($63.8M).

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