Top 100 Contractors in PSC R6: Administrative Support Services, FY2024

Name: Top 100 Contractors in PSC R6: Administrative Support Services, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 33% of FY2024 PSC R6 contract dollars

Contract obligations: $5,444,273,836 Net of deobligations, by contracts coded PSC R6 or a code under it
Contractors: 4,010 Parent companies with an obligation
Largest contractor: Ministry of Defense $790 million, 11.7% 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)	$789,873,930	11.7%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	Fedex Corp 6 awardees, including Fedex Supply Chain Distribution System, Inc. and Federal Express Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$347,433,602	5.1%	Rank history: #3 in FY2021, #3 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	Credence Management Solutions Limited Liability Company Top agencies USAID (US Agency for International Development)	$228,331,409	3.4%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
4	CACI International Inc. 6 awardees, including Caci, Inc. - Federal, Caci Nss, LLC and Caci, LLC - Commercial Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security) DOJ (Department of Justice)	$217,628,675	3.2%	Rank history: #4 in FY2021, #6 in FY2022, #4 in FY2023 and #4 in FY2025; unchanged since FY2023.
5	Peraton Risk Decision Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$131,093,431	1.9%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2025; new.
6	Teamstaff Inc. 2 awardees, including DLH Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$121,236,640	1.8%	Rank history: #13 in FY2021, #13 in FY2022, #11 in FY2023 and #5 in FY2025; up 5 since FY2023.
7	HP Enterprise Services LLC 4 awardees, including Peraton Risk Decision Inc. and Peraton Enterprise Solutions LLC Top agencies DCSA (Defense Counterintelligence and Security Agency) DHA (Defense Health Agency)	$119,806,048	1.8%	Rank history: #27 in FY2021, #4 in FY2022, #3 in FY2023 and not on the FY2025 list; down 4 since FY2023.
8	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$105,088,977	1.6%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; new.
9	ITC Federal, LLC Top agencies DHS (Department of Homeland Security)	$79,531,960	1.2%	Rank history: #17 in FY2021, #21 in FY2022, #6 in FY2023 and #20 in FY2025; down 3 since FY2023.
10	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) ED (Department of Education)	$77,100,893	1.1%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2025; new.
11	Brillient Corporation Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture)	$68,364,578	1.0%	Rank history: #7 in FY2021, #51 in FY2022, #9 in FY2023 and #9 in FY2025; down 2 since FY2023.
12	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies DOJ (Department of Justice) HUD (Department of Housing and Urban Development) IBWC (International Boundary and Water Commission U.S.-Mexico)	$62,633,649	0.9%	Rank history: #60 in FY2021, #11 in FY2022, #8 in FY2023 and not on the FY2025 list; down 4 since FY2023.
13	General Dynamics Corporation 6 awardees, including General Dynamics Information Technology, Inc., Celerity Government Solutions LLC and Csra LLC Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$61,159,393	0.9%	Rank history: #10 in FY2021, #16 in FY2022, #13 in FY2023 and #45 in FY2025; unchanged since FY2023.
14	United Parcel Service Co. 5 awardees Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) DOS (Department of State)	$60,703,830	0.9%	Rank history: #23 in FY2021, #22 in FY2022, #12 in FY2023 and #13 in FY2025; down 2 since FY2023.
15	Science Applications International Corporation 2 awardees, including Forfeiture Support Associates LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$47,552,274	0.7%	Rank history: #11 in FY2021, #19 in FY2022, #22 in FY2023 and not on the FY2025 list; up 7 since FY2023.
16	Servicesource Inc. 2 awardees Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$47,056,710	0.7%	Rank history: #16 in FY2021, #18 in FY2022, #16 in FY2023 and #17 in FY2025; unchanged since FY2023.
17	Sos International LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$43,266,957	0.6%	Rank history: not on the FY2021 list, #30 in FY2022, #7 in FY2023 and #6 in FY2025; down 10 since FY2023.
18	Iron Mountain Incorporated 2 awardees, including Iron Mountain Information Management LLC and Iron Mountain Secure Shredding, Inc. Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) FTC (Federal Trade Commission)	$41,718,628	0.6%	Rank history: not on the FY2021 list, #20 in FY2022, #63 in FY2023 and #95 in FY2025; up 45 since FY2023.
19	ADC Ltd NM Top agencies DHS (Department of Homeland Security)	$40,797,052	0.6%	Rank history: #55 in FY2021, #38 in FY2022, #24 in FY2023 and #23 in FY2025; up 5 since FY2023.
20	Accenture Federal Services LLC Top agencies OPM (Office of Personnel Management) HHS (Department of Health and Human Services) Treasury (Department of the Treasury)	$39,370,956	0.6%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; new.
21	Project Enhancement Corporation Top agencies DOE (Department of Energy)	$38,474,510	0.6%	Rank history: #68 in FY2021, #27 in FY2022, #21 in FY2023 and #19 in FY2025; unchanged since FY2023.
22	Pgls LLC Top agencies DOJ (Department of Justice)	$37,525,761	0.6%	Rank history: #30 in FY2021, #23 in FY2022, #23 in FY2023 and #34 in FY2025; up 1 since FY2023.
23	Deployed Resources LLC Top agencies HHS (Department of Health and Human Services)	$37,099,243	0.5%	Rank history: not on the FY2021 list, #9 in FY2022, not on the FY2023 list and #41 in FY2025; returned.
24	The Building People LLC Top agencies DOE (Department of Energy) USDA (Department of Agriculture)	$32,816,979	0.5%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #37 in FY2025; up 10 since FY2023.
25	Metlang LLC Top agencies DOJ (Department of Justice)	$32,444,928	0.5%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #24 in FY2025; up 11 since FY2023.
26	QED Enterprises Inc. Top agencies DHS (Department of Homeland Security) OSD (Office of the Secretary of Defense)	$32,441,712	0.5%	Rank history: not on the FY2021 list, #40 in FY2022, #19 in FY2023 and #25 in FY2025; down 7 since FY2023.
27	Mayvin, Inc. Top agencies DOJ (Department of Justice)	$31,269,372	0.5%	Rank history: not on the FY2021 list, #37 in FY2022, #33 in FY2023 and #26 in FY2025; up 6 since FY2023.
28	Colsa Corp Top agencies NASA (National Aeronautics and Space Administration)	$30,751,880	0.5%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; up 141 since FY2023.
29	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$29,952,625	0.4%	Rank history: #65 in FY2021, #70 in FY2022, #44 in FY2023 and #29 in FY2025; up 15 since FY2023.
30	Oxford Government Consulting, LLC Top agencies Treasury (Department of the Treasury)	$29,614,522	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
31	Worldwide Language Resources, LLC Top agencies USSOCOM (United States Special Operations Command)	$25,299,700	0.4%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2025; new.
32	Management Solutions LLC Top agencies DOE (Department of Energy)	$24,924,382	0.4%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and #16 in FY2025; up 22 since FY2023.
33	Cherokee Nation Strategic Programs, L.L.C. Top agencies DOS (Department of State) OSD (Office of the Secretary of Defense) DOI (Department of the Interior)	$23,662,067	0.3%	Rank history: not on the FY2021 list, #57 in FY2022, not on the FY2023 list and not on the FY2025 list; up 348 since FY2023.
34	CBF Partners JV LLC Top agencies NASA (National Aeronautics and Space Administration)	$23,521,817	0.3%	Rank history: #58 in FY2021, #45 in FY2022, #53 in FY2023 and not on the FY2025 list; up 19 since FY2023.
35	Ernst & Young LLP Top agencies GSA (General Services Administration)	$23,158,078	0.3%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2025; new.
36	Guardians of Honor, LLC Top agencies NASA (National Aeronautics and Space Administration) CNCS (Corporation for National and Community Service)	$23,038,847	0.3%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
37	Axient LLC Top agencies NASA (National Aeronautics and Space Administration)	$22,463,324	0.3%	Rank history: #19 in FY2021, #25 in FY2022, #27 in FY2023 and #39 in FY2025; down 10 since FY2023.
38	Koniag, Inc. 4 awardees, including Koniag Brillient, LLC, Koniag Technology Solutions Inc. and Arlluk Technology Solutions LLC Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture) DISA (Defense Information Systems Agency)	$22,236,233	0.3%	Rank history: #26 in FY2021, #41 in FY2022, #28 in FY2023 and not on the FY2025 list; down 10 since FY2023.
39	Sciolex Corporation Top agencies DHS (Department of Homeland Security)	$22,149,981	0.3%	Rank history: #12 in FY2021, #12 in FY2022, #31 in FY2023 and #31 in FY2025; down 8 since FY2023.
40	Arctic Slope Regional Corporation 5 awardees, including Asrc Federal Professional Services, LLC, Broadleaf, Inc. and Asrc Federal Facilities Logistics LLC Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) DOJ (Department of Justice)	$21,786,704	0.3%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #50 in FY2025; up 27 since FY2023.
41	Cherokee Nation Federal Consulting, L.L.C. Top agencies Treasury (Department of the Treasury) DOI (Department of the Interior)	$21,661,961	0.3%	Rank history: not on the FY2021 list, #7 in FY2022, #10 in FY2023 and not on the FY2025 list; down 31 since FY2023.
42	Muscogee Arora JV LLC Top agencies Army (Department of the Army)	$21,603,513	0.3%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and not on the FY2025 list; up 5 since FY2023.
43	Leumas Residential LLC Top agencies HUD (Department of Housing and Urban Development)	$21,562,379	0.3%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and #47 in FY2025; down 1 since FY2023.
44	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)	$21,296,303	0.3%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; new.
45	The Kace Company, Llc. Top agencies DHS (Department of Homeland Security)	$19,403,763	0.3%	Rank history: #34 in FY2021, #26 in FY2022, #45 in FY2023 and not on the FY2025 list; unchanged since FY2023.
46	LMI Consulting, LLC Top agencies OSD (Office of the Secretary of Defense)	$19,006,063	0.3%	Rank history: not on the FY2021 list, #50 in FY2022, #69 in FY2023 and #82 in FY2025; up 23 since FY2023.
47	Quality Support, Inc. Top agencies DOS (Department of State)	$17,751,296	0.3%	Rank history: #77 in FY2021, #89 in FY2022, not on the FY2023 list and not on the FY2025 list; up 64 since FY2023.
48	Seven Corners Inc. Top agencies DOJ (Department of Justice)	$17,007,825	0.3%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; up 167 since FY2023.
49	Miracorp Inc Top agencies GSA (General Services Administration) DOE (Department of Energy) DHS (Department of Homeland Security)	$16,362,257	0.2%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023 and not on the FY2025 list; down 6 since FY2023.
50	Versability Resources, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$16,250,575	0.2%	Rank history: #72 in FY2021, #58 in FY2022, #89 in FY2023 and #51 in FY2025; up 39 since FY2023.
51	Liberty Business Associates, LLC Top agencies Navy (Department of the Navy)	$15,718,271	0.2%	Rank history: #82 in FY2021, #75 in FY2022, #70 in FY2023 and #57 in FY2025; up 19 since FY2023.
52	Future Technologies, Inc. Top agencies Navy (Department of the Navy)	$15,323,442	0.2%	Rank history: #53 in FY2021, #67 in FY2022, #99 in FY2023 and #79 in FY2025; up 47 since FY2023.
53	Akima Systems Engineering LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$15,261,751	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
54	Rack-Wildner & Reese, Inc. Top agencies DOE (Department of Energy)	$14,684,345	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
55	Teya Enterprises LLC Top agencies Army (Department of the Army)	$14,612,585	0.2%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #61 in FY2025; up 13 since FY2023.
56	Street Legal Industries LLC Top agencies DOE (Department of Energy) Army (Department of the Army)	$14,555,329	0.2%	Rank history: not on the FY2021 list, #84 in FY2022, #78 in FY2023 and #63 in FY2025; up 22 since FY2023.
57	CGI Federal Inc. Top agencies DOJ (Department of Justice) HUD (Department of Housing and Urban Development)	$14,348,280	0.2%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
58	Cox Subscriptions, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$14,197,460	0.2%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; up 44 since FY2023.
59	Lockheed Martin Corporation 2 awardees, including Lockheed Martin Integrated Systems, LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$14,151,940	0.2%	Rank history: #20 in FY2021, #31 in FY2022, #46 in FY2023 and #33 in FY2025; down 13 since FY2023.
60	Pn-Heitech, LLC Top agencies HHS (Department of Health and Human Services)	$13,946,459	0.2%	Rank history: #63 in FY2021, #76 in FY2022, #66 in FY2023 and #58 in FY2025; up 6 since FY2023.
61	Language Line Holdings Inc. Through Language Line, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$13,566,098	0.2%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; new.
62	Conrad LLP Top agencies HHS (Department of Health and Human Services)	$13,361,469	0.2%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and #64 in FY2025; up 36 since FY2023.
63	Yorktown Systems Group Inc Top agencies MDA (DOD Missile Defense Agency)	$13,297,572	0.2%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2025; up 38 since FY2023.
64	Sourceamerica Top agencies USAF (Department of the Air Force) Treasury (Department of the Treasury)	$12,668,564	0.2%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; up 39 since FY2023.
65	Avantus Federal LLC Top agencies OSD (Office of the Secretary of Defense)	$12,640,165	0.2%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and not on the FY2025 list; up 6 since FY2023.
66	Cherokee Nation Solutions Link, L.L.C. Top agencies DOS (Department of State)	$12,283,017	0.2%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2023 and not on the FY2025 list; up 9 since FY2023.
67	Hill Asc, Inc. Top agencies Treasury (Department of the Treasury)	$12,071,036	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	Goodwill Industries of San Antonio Contract Services Top agencies USAF (Department of the Air Force)	$12,044,140	0.2%	Rank history: #22 in FY2021, #29 in FY2022, #61 in FY2023 and #54 in FY2025; down 7 since FY2023.
69	Verato, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DOJ (Department of Justice) Treasury (Department of the Treasury)	$11,934,790	0.2%	Rank history: #28 in FY2021, #42 in FY2022, #41 in FY2023 and not on the FY2025 list; down 28 since FY2023.
70	Stratcomm Inc Top agencies SSA (Social Security Administration) CSB (Chemical Safety and Hazard Investigation Board) EPA (Environmental Protection Agency)	$11,784,449	0.2%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2025; up 88 since FY2023.
71	Coastal Management Solutions Inc. Top agencies Navy (Department of the Navy)	$11,692,297	0.2%	Rank history: #40 in FY2021, #54 in FY2022, not on the FY2023 list and #78 in FY2025; up 71 since FY2023.
72	Seventh Sense, LLC Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation) DOE (Department of Energy)	$11,683,915	0.2%	Rank history: #83 in FY2021, not on the FY2022–FY2023 lists and #72 in FY2025; up 43 since FY2023.
73	Techop Solutions International, Inc. Top agencies DHS (Department of Homeland Security)	$11,675,868	0.2%	Rank history: #69 in FY2021, #66 in FY2022, #74 in FY2023 and not on the FY2025 list; up 1 since FY2023.
74	Language Line LLC 2 awardees, including Senture LLC Top agencies CFPB (Consumer Financial Protection Bureau) DOJ (Department of Justice)	$11,611,517	0.2%	Rank history: not on the FY2021 list, #95 in FY2022, #59 in FY2023 and not on the FY2025 list; down 15 since FY2023.
75	Metis Celestar JV LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$11,594,234	0.2%	Rank history: #61 in FY2021, #60 in FY2022, #72 in FY2023 and not on the FY2025 list; down 3 since FY2023.
76	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) Treasury (Department of the Treasury)	$11,585,050	0.2%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and not on the FY2025 list; down 3 since FY2023.
77	Guidehouse Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$11,579,173	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	National Associates, Inc. Top agencies Treasury (Department of the Treasury)	$11,426,688	0.2%	Rank history: #78 in FY2021, not on the FY2022–FY2023 lists and #70 in FY2025; up 337 since FY2023.
79	Fedwriters, Inc. Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury) DOE (Department of Energy)	$11,401,657	0.2%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and not on the FY2025 list; up 11 since FY2023.
80	Bowhead Marine Support Services, LLC 2 awardees Top agencies DHS (Department of Homeland Security)	$11,391,021	0.2%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
81	Creative It Solutions LLC Top agencies HHS (Department of Health and Human Services) DOS (Department of State)	$11,241,156	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #62 in FY2023 and not on the FY2025 list; down 19 since FY2023.
82	Rivertech LLC Top agencies USAF (Department of the Air Force)	$11,217,982	0.2%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
83	Metropolitan Interpreters & Translators, Inc. Top agencies DOJ (Department of Justice)	$11,166,895	0.2%	Rank history: #14 in FY2021, #14 in FY2022, #49 in FY2023 and not on the FY2025 list; down 34 since FY2023.
84	Dun & Bradstreet, Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$11,066,569	0.2%	Rank history: not on the FY2021 list, #39 in FY2022, not on the FY2023 list and #97 in FY2025; up 400 since FY2023.
85	Constellis, LLC Through Omniplex World Services Corporation Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration)	$11,036,334	0.2%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2025; new.
86	Thomson Company Inc the Through West Publishing Corporation Top agencies DHS (Department of Homeland Security) FTC (Federal Trade Commission) DOJ (Department of Justice)	$10,686,187	0.2%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2025; new.
87	Caci, LLC - Commercial Top agencies DOJ (Department of Justice)	$10,661,579	0.2%	Rank history: not on the FY2021 list, #77 in FY2022, not on the FY2023 list and not on the FY2025 list; up 319 since FY2023.
88	New Rights Group, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$10,520,051	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, not on the FY2023 list and not on the FY2025 list; up 45 since FY2023.
89	One Federal Solution Corporation Top agencies DOJ (Department of Justice) GSA (General Services Administration)	$10,509,855	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 55 since FY2023.
90	Contracting Resources Group Inc Top agencies DOS (Department of State) Treasury (Department of the Treasury)	$10,487,244	0.2%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2025 list; up 7 since FY2023.
91	Clear Lincs LLC Top agencies GSA (General Services Administration)	$10,421,327	0.2%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and not on the FY2025 list; up 1 since FY2023.
92	Summit Consulting LLC Top agencies ED (Department of Education)	$10,291,320	0.2%	Rank history: #87 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 30 since FY2023.
93	Relx Inc. 5 awardees, including Lexisnexis Special Services Inc., Lexisnexis Risk Solutions Inc. and Elsevier Inc. Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury) FTC (Federal Trade Commission)	$10,154,632	0.2%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2025; new.
94	Katmai Integrated Solutions, LLC Top agencies Navy (Department of the Navy) DOE (Department of Energy)	$9,930,555	0.1%	Rank history: #70 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 35 since FY2023.
95	Coventbridge (USA) LLC Top agencies USDA (Department of Agriculture)	$9,922,947	0.1%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2025; new.
96	United Language Group, Inc. Through Language Select, LLC Top agencies SSA (Social Security Administration)	$9,909,307	0.1%	Rank history: #38 in FY2021, #78 in FY2022, #81 in FY2023 and #46 in FY2025; down 15 since FY2023.
97	DNI Emerging Technologies, LLC Top agencies DOE (Department of Energy) HHS (Department of Health and Human Services)	$9,729,273	0.1%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; up 339 since FY2023.
98	Attainx Inc. Top agencies DOE (Department of Energy) USDA (Department of Agriculture)	$9,715,115	0.1%	Rank history: #57 in FY2021, #53 in FY2022, #76 in FY2023 and #94 in FY2025; down 22 since FY2023.
99	Reston Consulting Group, Inc. Top agencies Treasury (Department of the Treasury)	$9,655,244	0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and not on the FY2025 list; down 39 since FY2023.
100	Crosstown Courier Service Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) DHS (Department of Homeland Security)	$9,576,908	0.1%	Rank history: #76 in FY2021, #80 in FY2022, #79 in FY2023 and #69 in FY2025; down 21 since FY2023.

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100 of 4,010 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	$3,927,917,336	Ministry of Defense
R615 Support – Administrative: Background Investigation	$574,657,367	CACI International Inc.
R608 Translation and Interpreting Services(Including Sign Language)	$357,734,538	Sos International LLC
R612 Information Retrieval	$128,632,630	Dun & Bradstreet, Inc.
R605 Library Services	$109,932,458	Cox Subscriptions, Inc.
R617 Administrative Support Services	$90,701,596	Pn-Heitech, LLC
R610 Personal Property Management Services	$90,041,347	Leumas Residential LLC
R616 Administrative Support Services	$72,213,222	Iron Mountain Incorporated
R602 Courier and Messenger Services	$58,929,222	United Parcel Service Co.
R611 Credit Reporting Services	$28,900,142	Ernst & Young LLP
R606 Court Reporting Services	$27,661,061	Diversified Reporting Services, Inc.
R614 Paper Shredding Services	$23,651,213	Sourceamerica
R603 Transcription Services	$17,542,029	Stratcomm Inc
R613 Post Office Services	$12,947,695	Chenega Defense & Aerospace Solutions, LLC
R604 Mailing and Distribution Services	-$94,501,614	Fedex Corp

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 $6.76 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 FY2024?

1. Ministry of Defense ($790M), 2. Fedex Corp ($347M), 3. Credence Management Solutions Limited Liability Company ($228M), 4. CACI International Inc. ($218M), 5. Peraton Risk Decision Inc. ($131M), 6. Teamstaff Inc. ($121M), 7. HP Enterprise Services LLC ($120M), 8. Peraton Inc. ($105M), 9. ITC Federal, LLC ($79.5M), 10. Deloitte ($77.1M).

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