Top 100 Contractors in PSC R7: Management Support Services, FY2023

Name: Top 100 Contractors in PSC R7: Management Support Services, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 36% of FY2023 PSC R7 contract dollars

Contract obligations: $21,485,591,856 Net of deobligations, by contracts coded PSC R7 or a code under it
Contractors: 3,491 Parent companies with an obligation
Largest contractor: Vectrus Systems Corporation $2.25 billion, 9.7% 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	Vectrus Systems Corporation 3 awardees, including V2X Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DOS (Department of State)	$2,252,750,574	9.7%	Rank history: #2 in FY2021, #2 in FY2022, #15 in FY2024 and not on the FY2025 list; up 1 since FY2022.
2	KBR Services LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$1,939,411,274	8.3%	Rank history: not on the FY2021 list, #29 in FY2022, #10 in FY2024 and not on the FY2025 list; up 27 since FY2022.
3	Lockheed Martin Corporation 10 awardees, including Longbow LLC Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army) USAF (Department of the Air Force)	$973,891,804	4.2%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2024 and #3 in FY2025; unchanged since FY2022.
4	Omnicom Group Inc. 5 awardees, including DDB Chicago Inc., Gsd&M LLC and Porter Novelli Public Services Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) USDA (Department of Agriculture)	$915,621,666	3.9%	Rank history: #6 in FY2021, #5 in FY2022, #12 in FY2024 and #32 in FY2025; up 1 since FY2022.
5	Deloitte LLP 3 awardees, including Deloitte & Touche LLP, Deloitte Consulting LLP and Deloitte Financial Advisory Services LLP Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$599,083,389	2.6%	Rank history: #5 in FY2021, #4 in FY2022, #4 in FY2024 and #7 in FY2025; down 1 since FY2022.
6	Nelnet Servicing LLC 3 awardees, including Great Lakes Educational Loan Services, Inc. and Nelnet Diversified Solutions, LLC Top agencies ED (Department of Education)	$406,333,682	1.7%	Rank history: #11 in FY2021, #6 in FY2022, #8 in FY2024 and #9 in FY2025; unchanged since FY2022.
7	Amentum Services, Inc. 2 awardees, including Dyncorp International LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Commerce (Department of Commerce)	$400,851,624	1.7%	Rank history: #7 in FY2021, #7 in FY2022, #6 in FY2024 and #65 in FY2025; unchanged since FY2022.
8	L3Harris Technologies, Inc. 11 awardees, including L3Harris Technologies Integrated Systems L.P., L3Harris Forcex, Inc. and L3Harris Nexgen Communications LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$322,249,141	1.4%	Rank history: #13 in FY2021, #10 in FY2022, #42 in FY2024 and #29 in FY2025; up 2 since FY2022.
9	Sierra Nevada Company, LLC 3 awardees Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$321,193,050	1.4%	Rank history: #8 in FY2021, #9 in FY2022, #7 in FY2024 and #8 in FY2025; unchanged since FY2022.
10	Fluor Corporation 3 awardees, including Fluor Intercontinental, Inc., Fluor Federal Petroleum Operations, LLC and Fluor Intercontinental Germany GMBH Top agencies Army (Department of the Army) DOE (Department of Energy) USAF (Department of the Air Force)	$319,766,361	1.4%	Rank history: #9 in FY2021, #11 in FY2022, #11 in FY2024 and #12 in FY2025; up 1 since FY2022.
11	General Dynamics Corporation 4 awardees, including General Dynamics Information Technology, Inc. and General Dynamics Land Systems Inc. Top agencies DOS (Department of State) DHS (Department of Homeland Security) Navy (Department of the Navy)	$313,516,501	1.3%	Rank history: #4 in FY2021, #12 in FY2022, #34 in FY2024 and #11 in FY2025; up 1 since FY2022.
12	Missouri Higher Education Loan Authority Top agencies ED (Department of Education)	$296,856,719	1.3%	Rank history: #42 in FY2021, #20 in FY2022, #20 in FY2024 and #19 in FY2025; up 8 since FY2022.
13	The Boeing Company 8 awardees, including Jeppesen Foreflight, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$260,339,514	1.1%	Rank history: #14 in FY2021, #25 in FY2022, #30 in FY2024 and #21 in FY2025; up 12 since FY2022.
14	Kpmg L.L.P. 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$257,632,095	1.1%	Rank history: #15 in FY2021, #13 in FY2022, #13 in FY2024 and #13 in FY2025; down 1 since FY2022.
15	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc. and Shore Systems & Solutions LLC Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) USAF (Department of the Air Force)	$254,360,983	1.1%	Rank history: #12 in FY2021, #16 in FY2022, #9 in FY2024 and #15 in FY2025; up 1 since FY2022.
16	Maximus Education LLC Top agencies ED (Department of Education)	$248,052,972	1.1%	Rank history: not on the FY2021 list, #24 in FY2022, #16 in FY2024 and not on the FY2025 list; up 8 since FY2022.
17	Mantech International Corporation 3 awardees, including Mantech Advanced Systems International, Inc., Tapestry Technologies, Inc. and Mantech Mgs, Inc. Top agencies Army (Department of the Army) DISA (Defense Information Systems Agency) USUHS (DOD Uniformed Services University of the Health Sciences)	$234,503,742	1.0%	Rank history: not on the FY2021 list, #80 in FY2022, #17 in FY2024 and #24 in FY2025; up 63 since FY2022.
18	Ernst & Young LLP Top agencies Navy (Department of the Navy) HUD (Department of Housing and Urban Development) USAF (Department of the Air Force)	$209,055,244	0.9%	Rank history: #16 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
19	HP Enterprise Services LLC 6 awardees, including Peraton Inc., Cotiviti GOV Services, LLC and Peraton Enterprise Solutions LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$206,128,914	0.9%	Rank history: #40 in FY2021, #31 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
20	Riverside Research Institute Through Applied Research Solutions, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$205,651,640	0.9%	Rank history: #25 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
21	Alion Science and Technology Corporation 2 awardees, including HII Mission Technologies Corp Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$193,793,829	0.8%	Rank history: #28 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
22	Northrop Grumman Corporation 9 awardees, including Northrop Grumman Systems Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$189,348,243	0.8%	Rank history: #17 in FY2021, #26 in FY2022, #35 in FY2024 and #23 in FY2025; up 4 since FY2022.
23	Leidos Holdings, Inc. 7 awardees, including Leidos, Inc. Top agencies DISA (Defense Information Systems Agency) DHS (Department of Homeland Security) DOJ (Department of Justice)	$176,925,442	0.8%	Rank history: #21 in FY2021, #18 in FY2022, #28 in FY2024 and #17 in FY2025; down 5 since FY2022.
24	Accenture Inc. Through Accenture Federal Services LLC Top agencies ED (Department of Education) Commerce (Department of Commerce) DOJ (Department of Justice)	$171,166,702	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 198 since FY2022.
25	The Mitre Corporation Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) HHS (Department of Health and Human Services)	$167,214,105	0.7%	Rank history: #32 in FY2021, #33 in FY2022, #37 in FY2024 and #54 in FY2025; up 8 since FY2022.
26	General Atomic Technologies Corporation Through General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$165,853,281	0.7%	Rank history: #34 in FY2021, #27 in FY2022, #26 in FY2024 and not on the FY2025 list; up 1 since FY2022.
27	Odyssey Systems Consulting Group, Ltd. Top agencies USAF (Department of the Air Force)	$162,468,693	0.7%	Rank history: not on the FY2021 list, #59 in FY2022, #44 in FY2024 and not on the FY2025 list; up 32 since FY2022.
28	WPP PLC 2 awardees, including Wunderman Thompson LLC Top agencies Navy (Department of the Navy)	$150,216,524	0.6%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2024 and #31 in FY2025; new.
29	CACI International Inc. 7 awardees, including Caci, Inc. - Federal, Caci, LLC - Commercial and Caci Nss, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOJ (Department of Justice)	$144,665,453	0.6%	Rank history: #26 in FY2021, #40 in FY2022, #49 in FY2024 and #33 in FY2025; up 11 since FY2022.
30	Kearney & Company, P.C. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) DHS (Department of Homeland Security)	$137,036,532	0.6%	Rank history: #36 in FY2021, #39 in FY2022, #67 in FY2024 and not on the FY2025 list; up 9 since FY2022.
31	RTX Corporation 10 awardees, including Raytheon Company, Rockwell Collins, Inc. and Noresco, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$133,982,319	0.6%	Rank history: #19 in FY2021, #17 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
32	Edfinancial Services LLC Top agencies ED (Department of Education)	$131,175,059	0.6%	Rank history: not on the FY2021 list, #49 in FY2022, #22 in FY2024 and #20 in FY2025; up 17 since FY2022.
33	Maximus Inc. 2 awardees, including Maximus Federal Services, Inc. and Maximus Federal Technology Solutions, LLC Top agencies ED (Department of Education) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$119,562,656	0.5%	Rank history: #37 in FY2021, #30 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
34	Guidehouse Inc. 2 awardees Top agencies DHS (Department of Homeland Security) OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$110,101,386	0.5%	Rank history: #35 in FY2021, #36 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
35	Deloitte Consulting LLP Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) Treasury (Department of the Treasury)	$100,575,891	0.4%	Rank history: not on the FY2021 list, #54 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
36	Young & Rubicam Inc. 2 awardees, including Kantar LLC Top agencies Navy (Department of the Navy) FTC (Federal Trade Commission)	$98,550,236	0.4%	Rank history: #23 in FY2021, #14 in FY2022, #69 in FY2024 and not on the FY2025 list; down 22 since FY2022.
37	Loyalty Support Services Top agencies Army (Department of the Army)	$95,193,125	0.4%	Rank history: #39 in FY2021, #38 in FY2022, #38 in FY2024 and #18 in FY2025; up 1 since FY2022.
38	RSI Entech, LLC Top agencies DOE (Department of Energy)	$93,269,485	0.4%	Rank history: #49 in FY2021, #35 in FY2022, #39 in FY2024 and not on the FY2025 list; down 3 since FY2022.
39	Tecolote Research, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$82,083,356	0.4%	Rank history: #55 in FY2021, #44 in FY2022, #51 in FY2024 and #48 in FY2025; up 5 since FY2022.
40	PAE Government Services Inc. 5 awardees, including PAE Applied Technologies LLC, PAE National Security Solutions LLC and FCI Federal, LLC Top agencies DOS (Department of State) Commerce (Department of Commerce) USAF (Department of the Air Force)	$77,992,742	0.3%	Rank history: #54 in FY2021, #56 in FY2022 and not on the FY2024–FY2025 lists; up 16 since FY2022.
41	Stratacomm, LLC Top agencies DOT (Department of Transportation)	$75,549,720	0.3%	Rank history: #51 in FY2021, #52 in FY2022, #45 in FY2024 and #40 in FY2025; up 11 since FY2022.
42	Booz Allen Hamilton Inc. Top agencies VA (Department of Veterans Affairs)	$72,024,216	0.3%	Rank history: not on the FY2021 list, #41 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
43	Torch Technologies Inc. Top agencies USAF (Department of the Air Force)	$69,825,118	0.3%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2024 and #42 in FY2025; new.
44	Credence Management Solutions Limited Liability Company Top agencies USAF (Department of the Air Force)	$64,915,511	0.3%	Rank history: #80 in FY2021, #66 in FY2022, #98 in FY2024 and not on the FY2025 list; up 22 since FY2022.
45	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top agencies Army (Department of the Army)	$58,816,959	0.3%	Rank history: #1 in FY2021, #1 in FY2022, #52 in FY2024 and not on the FY2025 list; down 44 since FY2022.
46	Fors Marsh Group LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) CFPB (Consumer Financial Protection Bureau)	$57,036,035	0.2%	Rank history: #20 in FY2021, #8 in FY2022 and not on the FY2024–FY2025 lists; down 38 since FY2022.
47	Nana Regional Corporation Inc 2 awardees, including Akima Support Operations, LLC and Akima Logistics Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$56,753,922	0.2%	Rank history: #41 in FY2021, #47 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
48	J.r. Reingold & Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$52,857,223	0.2%	Rank history: #92 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 91 since FY2022.
49	Textron Inc. 2 awardees, including Textron Systems Corporation and Bell Textron Inc. Top agencies Army (Department of the Army)	$52,781,182	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, #94 in FY2024 and not on the FY2025 list; up 38 since FY2022.
50	Oasis Systems, LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Navy (Department of the Navy)	$51,579,766	0.2%	Rank history: #27 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; down 31 since FY2022.
51	CBE Group Inc. the Top agencies Treasury (Department of the Treasury)	$50,373,064	0.2%	Rank history: not on the FY2021 list, #75 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
52	Performant Recovery, Inc. Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury)	$47,290,129	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 93 since FY2022.
53	Skookum Educational Programs Top agencies Army (Department of the Army)	$45,967,684	0.2%	Rank history: #89 in FY2021, #65 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
54	Battelle Memorial Institute Top agencies NSF (National Science Foundation) Army (Department of the Army)	$45,820,927	0.2%	Rank history: #66 in FY2021, #63 in FY2022, #64 in FY2024 and #67 in FY2025; up 9 since FY2022.
55	The Bank of New York Mellon Corporation 2 awardees Top agencies HUD (Department of Housing and Urban Development)	$45,695,107	0.2%	Rank history: #48 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
56	Information Systems & Networks Corporation Top agencies HUD (Department of Housing and Urban Development) Navy (Department of the Navy) DOJ (Department of Justice)	$45,196,383	0.2%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and #59 in FY2025; up 66 since FY2022.
57	Nakupuna Solutions, LLC Top agencies DOS (Department of State) Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$44,402,253	0.2%	Rank history: not on the FY2021 list, #70 in FY2022, #50 in FY2024 and #71 in FY2025; up 13 since FY2022.
58	Atkins Nuclear Secured Holdings Corporation 2 awardees, including Atkins North America Inc. and Atkinsréalis Nuclear Solutions USA Inc. Top agencies Army (Department of the Army) DOS (Department of State)	$43,360,099	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 133 since FY2022.
59	Techtrans International Inc. Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$43,225,187	0.2%	Rank history: #71 in FY2021, #78 in FY2022, #61 in FY2024 and #46 in FY2025; up 19 since FY2022.
60	Avantus Federal LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) DOT (Department of Transportation)	$43,140,914	0.2%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and #43 in FY2025; up 72 since FY2022.
61	Technica LLC Top agencies Army (Department of the Army)	$42,931,023	0.2%	Rank history: #45 in FY2021, #62 in FY2022, #75 in FY2024 and not on the FY2025 list; up 1 since FY2022.
62	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services) DOE (Department of Energy) Treasury (Department of the Treasury)	$42,518,091	0.2%	Rank history: not on the FY2021 list, #71 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
63	Government of Canada Through Canadian Commercial Corporation Top agencies Army (Department of the Army)	$42,369,938	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 104 since FY2022.
64	Trax International Corporation 2 awardees Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$41,966,148	0.2%	Rank history: #64 in FY2021, #50 in FY2022, #74 in FY2024 and #85 in FY2025; down 14 since FY2022.
65	Integrated Finance and Accounting Solutions, Llc. Top agencies DOS (Department of State) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$41,793,213	0.2%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2024 and #53 in FY2025; up 185 since FY2022.
66	Identity Theft Guard Solutions, Inc. Top agencies OPM (Office of Personnel Management) SSA (Social Security Administration)	$41,231,908	0.2%	Rank history: #44 in FY2021, #37 in FY2022, #41 in FY2024 and #77 in FY2025; down 29 since FY2022.
67	Noblis, Inc. 2 awardees, including Noblis MSD LLC Top agencies DTRA (Defense Threat Reduction Agency) Navy (Department of the Navy) DOJ (Department of Justice)	$41,225,541	0.2%	Rank history: not on the FY2021 list, #43 in FY2022, #48 in FY2024 and #52 in FY2025; down 24 since FY2022.
68	Sehlke Consulting LLC Top agencies Navy (Department of the Navy) USDA (Department of Agriculture) Army (Department of the Army)	$40,945,148	0.2%	Rank history: #73 in FY2021, #58 in FY2022, #88 in FY2024 and not on the FY2025 list; down 10 since FY2022.
69	Akima Facilities Operations LLC Top agencies Army (Department of the Army)	$39,836,055	0.2%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2024 and #99 in FY2025; up 51 since FY2022.
70	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies Navy (Department of the Navy) NRC (Nuclear Regulatory Commission) DOJ (Department of Justice)	$39,794,307	0.2%	Rank history: #83 in FY2021, #83 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
71	Aptive Resources LLC Top agencies OPM (Office of Personnel Management) VA (Department of Veterans Affairs) NSF (National Science Foundation)	$38,518,409	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and not on the FY2025 list; up 52 since FY2022.
72	The Interpublic Group of Companies Inc 2 awardees, including Mullenlowe US Inc. Top agencies DHRA (Defense Human Resources Activity)	$38,318,707	0.2%	Rank history: #72 in FY2021, #72 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
73	Science Applications International Corporation 3 awardees, including Forfeiture Support Associates LLC Top agencies PBGC (Pension Benefit Guaranty Corporation) Army (Department of the Army) Navy (Department of the Navy)	$37,802,074	0.2%	Rank history: #69 in FY2021, #77 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
74	Compu-Link Corp Top agencies HUD (Department of Housing and Urban Development)	$37,162,065	0.2%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2024 and #45 in FY2025; up 162 since FY2022.
75	Winnebago Tribe of Nebraska Through HCI Management Services Company Top agencies DOS (Department of State)	$37,123,465	0.2%	Rank history: #74 in FY2021, #94 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
76	Altegrity, Inc. Through PAE Labat-Anderson LLC Top agencies DOJ (Department of Justice)	$37,070,031	0.2%	Rank history: #77 in FY2021, #64 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
77	Continental Service Group, LLC Top agencies Treasury (Department of the Treasury)	$36,663,326	0.2%	Rank history: not on the FY2021 list, #100 in FY2022 and not on the FY2024–FY2025 lists; up 23 since FY2022.
78	Miracle Systems LLC Top agencies DODEA (Department of Defense Education Activity) DHS (Department of Homeland Security) GSA (General Services Administration)	$36,577,529	0.2%	Rank history: #61 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
79	Itcon Services LLC Top agencies DHS (Department of Homeland Security)	$36,296,437	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	Agile Decision Sciences, LLC Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$36,209,160	0.2%	Rank history: #78 in FY2021, #69 in FY2022, #56 in FY2024 and not on the FY2025 list; down 11 since FY2022.
81	The Chenega Corporation 6 awardees, including Chenega Facilities Management LLC, Chenega Healthcare Services LLC and Chenega Analytic Business Solutions, LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) USAF (Department of the Air Force)	$36,057,309	0.2%	Rank history: #68 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; down 21 since FY2022.
82	The Emmes Company, LLC Top agencies HHS (Department of Health and Human Services)	$35,366,114	0.2%	Rank history: #96 in FY2021, #84 in FY2022, #90 in FY2024 and #83 in FY2025; up 2 since FY2022.
83	Veterans Technology, L.L.C. Top agencies MDA (DOD Missile Defense Agency)	$34,007,065	0.1%	Rank history: #90 in FY2021, #79 in FY2022, #99 in FY2024 and not on the FY2025 list; down 4 since FY2022.
84	Phoenix Management Inc Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$33,910,787	0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2024 and #72 in FY2025; new.
85	International Business Machines Corporation Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$33,512,422	0.1%	Rank history: #57 in FY2021, #55 in FY2022, #100 in FY2024 and not on the FY2025 list; down 30 since FY2022.
86	Koniag, Inc. 5 awardees, including Kadiak LLC, Pacarctic, LLC and Koniag Technology Solutions Inc. Top agencies DOE (Department of Energy) DOS (Department of State) DISA (Defense Information Systems Agency)	$33,334,329	0.1%	Rank history: not on the FY2021 list, #97 in FY2022, not on the FY2024 list and #82 in FY2025; up 11 since FY2022.
87	Coast Professional, Inc. Top agencies Treasury (Department of the Treasury)	$32,147,284	0.1%	Rank history: #43 in FY2021, not on the FY2022 list, #93 in FY2024 and #62 in FY2025; up 64 since FY2022.
88	Medical Science & Computing, LLC Top agencies HHS (Department of Health and Human Services)	$31,068,153	0.1%	Rank history: #94 in FY2021, #76 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
89	Amentum Parsons Logistics Services LLC Top agencies Army (Department of the Army)	$30,522,703	0.1%	Rank history: not on the FY2021 list, #85 in FY2022, #5 in FY2024 and not on the FY2025 list; down 4 since FY2022.
90	Potawatomi Business Development Corp 2 awardees, including Advancia Technologies, LLC and Advancia Aeronautics, LLC Top agencies DHA (Defense Health Agency)	$30,387,210	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 43 since FY2022.
91	TECH Systems Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$30,296,371	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2024 and not on the FY2025 list; up 27 since FY2022.
92	Grant Thornton International Ltd 2 awardees, including Grant Thornton LLP and Grant Thornton Public Sector LLC Top agencies DHS (Department of Homeland Security) USSOCOM (United States Special Operations Command) HHS (Department of Health and Human Services)	$30,286,968	0.1%	Rank history: #50 in FY2021, #46 in FY2022 and not on the FY2024–FY2025 lists; down 46 since FY2022.
93	PCI Government Services LLC Top agencies Commerce (Department of Commerce) Treasury (Department of the Treasury) DOT (Department of Transportation)	$29,600,809	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 381 since FY2022.
94	Mckesson Corporation Through Ndchealth Corporation Top agencies HHS (Department of Health and Human Services)	$28,879,520	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 212 since FY2022.
95	Noble Supply & Logistics LLC Top agencies GSA (General Services Administration)	$28,317,244	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 101 since FY2022.
96	IQ Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$27,085,655	0.1%	Rank history: #62 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 57 since FY2022.
97	Crosby Marketing Communications Inc. Top agencies SSA (Social Security Administration) USDA (Department of Agriculture) Peace Corps	$26,886,830	0.1%	Rank history: #97 in FY2021, #48 in FY2022, #91 in FY2024 and not on the FY2025 list; down 49 since FY2022.
98	Alsalam Aerospace Industries Company Top agencies USAF (Department of the Air Force)	$26,644,038	0.1%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2024 and not on the FY2025 list; new.
99	HX5 LLC Top agencies USAF (Department of the Air Force)	$26,166,748	0.1%	Rank history: #38 in FY2021, #45 in FY2022, #53 in FY2024 and #76 in FY2025; down 54 since FY2022.
100	Cayuse Holdings LLC Through Cayuse Technologies, LLC Top agencies DOS (Department of State)	$26,043,939	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 44 since FY2022.

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100 of 3,491 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC R7

Code	Net obligations	Largest contractor
R706 Logistics Support Services	$10,060,025,531	Vectrus Systems Corporation
R799 Other Management Support Services	$3,582,688,966	Booz Allen Hamilton Holding Corporation
R710 Support – Management: Financial	$2,345,981,188	Nelnet Servicing LLC
R701 Advertising Services	$1,812,495,260	Omnicom Group Inc.
R707 Contract, Procurement, and Acquisition Support Services	$1,347,621,051	Riverside Research Institute
R704 Auditing Services	$1,099,963,653	Deloitte LLP
R702 Data Collection Services	$596,865,469	General Dynamics Corporation
R703 Accounting Services (NOTE: New code created for Financial Services See R710 below)	$381,084,333	Kpmg L.L.P.
R708 Public Relations Services(includes writing services, event planning and management, media relations, radio and television analysis, and press services)	$229,658,232	Miracle Systems 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 $23.3 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 R7 contractors in FY2023?

1. Vectrus Systems Corporation ($2.25B), 2. KBR Services LLC ($1.94B), 3. Lockheed Martin Corporation ($974M), 4. Omnicom Group Inc. ($916M), 5. Deloitte LLP ($599M), 6. Nelnet Servicing LLC ($406M), 7. Amentum Services, Inc. ($401M), 8. L3Harris Technologies, Inc. ($322M), 9. Sierra Nevada Company, LLC ($321M), 10. Fluor Corporation ($320M).

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