Top 100 Contractors in NAICS 51: Information, FY2025

Name: Top 100 Contractors in NAICS 51: Information, FY2025
Creator: GovTribe

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

The top 10 won 48% of FY2025 NAICS 51 contract dollars

Contract obligations: $18,504,622,738 Net of deobligations, by contracts coded NAICS 51 or a code under it
Contractors: 4,488 Parent companies with an obligation
Largest contractor: Dell Technologies Inc. $3.1 billion, 16.0% 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	Dell Technologies Inc. 2 awardees, including Dell Marketing L.P. and Dell Federal Systems L.P Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$3,099,272,758	16.0%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; unchanged since FY2024.
2	Carahsoft Technology Corp Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) Navy (Department of the Navy)	$1,452,198,172	7.5%	Rank history: #1 in FY2021, #3 in FY2022, #3 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	At&T Inc. 21 awardees, including At&T Enterprises, LLC, Att Mobility LLC and At&T Mobility National Accounts LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) DOJ (Department of Justice)	$1,324,176,452	6.8%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Palantir Technologies Inc. 2 awardees, including Palantir USG Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$731,190,315	3.8%	Rank history: #12 in FY2021, #8 in FY2022, #7 in FY2023 and #6 in FY2024; up 2 since FY2024.
5	Verizon 13 awardees, including Verizon Business Network Services LLC, Cellco Partnership and MCI Communications Services LLC Top agencies DISA (Defense Information Systems Agency) HHS (Department of Health and Human Services) Army (Department of the Army)	$613,371,305	3.2%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; unchanged since FY2024.
6	Peraton Inc. 3 awardees, including Peraton Enterprise Solutions LLC Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce) DHRA (Defense Human Resources Activity)	$582,672,112	3.0%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; up 1 since FY2024.
7	Lumen Technologies Government Solutions, Inc. 3 awardees Top agencies DISA (Defense Information Systems Agency) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$512,740,257	2.6%	Rank history: #69 in FY2021, #37 in FY2022, not on the FY2023 list and #23 in FY2024; up 16 since FY2024.
8	Minburn Technology Group, LLC Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$334,884,389	1.7%	Rank history: #16 in FY2021, #16 in FY2022, #12 in FY2023 and #10 in FY2024; up 2 since FY2024.
9	Amazon Web Services, Inc. 2 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$314,565,860	1.6%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; up 6 since FY2024.
10	Advantaged Solutions, LLC Top agencies DLA (Defense Logistics Agency) DECA (Defense Commissary Agency) Navy (Department of the Navy)	$297,545,537	1.5%	Rank history: #30 in FY2021, #11 in FY2022, #14 in FY2023 and #11 in FY2024; up 1 since FY2024.
11	Space Exploration Technologies Corp. 2 awardees Top agencies DISA (Defense Information Systems Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$296,171,062	1.5%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; up 2 since FY2024.
12	International Business Machines Corporation 5 awardees Top agencies VA (Department of Veterans Affairs) GSA (General Services Administration) Treasury (Department of the Treasury)	$271,146,994	1.4%	Rank history: #23 in FY2021, #26 in FY2022, #16 in FY2023 and #19 in FY2024; up 7 since FY2024.
13	Relx Inc. 8 awardees, including Reed Technology and Information Services LLC, Elsevier Inc. and Lexisnexis Risk Solutions Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$245,719,015	1.3%	Rank history: not on the FY2021 list, #92 in FY2022, #31 in FY2023 and #30 in FY2024; up 17 since FY2024.
14	CACI International Inc. 8 awardees, including Caci, Inc. - Federal, Caci Nss, LLC and Systemware, Inc. Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) OSD (Office of the Secretary of Defense)	$220,854,612	1.1%	Rank history: #7 in FY2021, #12 in FY2022, #10 in FY2023 and #53 in FY2024; up 39 since FY2024.
15	SES Space & Defense Inc. 2 awardees, including Global Enterprise Solutions, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$208,979,564	1.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; up 46 since FY2024.
16	General Dynamics Corporation 9 awardees, including General Dynamics Information Technology, Inc., General Dynamics Mission Systems, Inc. and Praxis Engineering Technologies LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOT (Department of Transportation)	$200,899,697	1.0%	Rank history: #5 in FY2021, #13 in FY2022, #8 in FY2023 and #8 in FY2024; down 8 since FY2024.
17	Leidos Holdings, Inc. 9 awardees, including Leidos, Inc. and Leidos Digital Solutions Inc. Top agencies DOT (Department of Transportation) Army (Department of the Army) EOP (Executive Office of the President)	$174,468,847	0.9%	Rank history: #11 in FY2021, #9 in FY2022, #9 in FY2023 and #12 in FY2024; down 5 since FY2024.
18	Lockheed Martin Corporation 7 awardees, including Lockheed Martin Services, LLC Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$173,621,807	0.9%	Rank history: #21 in FY2021, #15 in FY2022, #15 in FY2023 and #14 in FY2024; down 4 since FY2024.
19	Microsoft Corporation Top agencies USDA (Department of Agriculture) Army (Department of the Army) DISA (Defense Information Systems Agency)	$161,258,745	0.8%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; up 31 since FY2024.
20	Inmarsat Government, Inc. 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$143,172,272	0.7%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 4 since FY2024.
21	Accenture Federal Services LLC 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$141,380,596	0.7%	Rank history: #33 in FY2021, #28 in FY2022, #26 in FY2023 and #18 in FY2024; down 3 since FY2024.
22	Environmental Systems Research Institute, Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture) Navy (Department of the Navy)	$140,858,760	0.7%	Rank history: #25 in FY2021, #20 in FY2022, #17 in FY2023 and #16 in FY2024; down 6 since FY2024.
23	Widepoint Integrated Solutions Corp Top agencies DHS (Department of Homeland Security) DISA (Defense Information Systems Agency) NSF (National Science Foundation)	$134,559,309	0.7%	Rank history: not on the FY2021–FY2024 lists; up 256 since FY2024.
24	AOC Connect, LLC Top agencies DISA (Defense Information Systems Agency) USAF (Department of the Air Force) DHA (Defense Health Agency)	$124,401,661	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
25	Iridium Government Services LLC Top agencies DISA (Defense Information Systems Agency)	$105,959,509	0.5%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2024; up 21 since FY2024.
26	Guidehouse Inc. 2 awardees, including Peraton Technology Services Inc. Top agencies DHS (Department of Homeland Security)	$105,654,498	0.5%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; unchanged since FY2024.
27	L3Harris Technologies, Inc. 10 awardees, including L3Harris Technologies Integrated Systems L.P., L3Harris Global Communications, Inc. and NV5 Geospatial Solutions, Inc. Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) Navy (Department of the Navy)	$97,524,301	0.5%	Rank history: #31 in FY2021, #25 in FY2022, #34 in FY2023 and #25 in FY2024; down 2 since FY2024.
28	Indyne, Inc. Top agencies USAF (Department of the Air Force)	$93,442,676	0.5%	Rank history: #44 in FY2021, #33 in FY2022, #32 in FY2023 and #35 in FY2024; up 7 since FY2024.
29	Consulting Services Group, LLC Top agencies USCYBERCOM (Department of Defense Cyber Command) Army (Department of the Army)	$90,515,980	0.5%	Rank history: #96 in FY2021, #74 in FY2022, #43 in FY2023 and #38 in FY2024; up 9 since FY2024.
30	Viasat Inc. 2 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) DISA (Defense Information Systems Agency)	$90,405,996	0.5%	Rank history: #27 in FY2021, #17 in FY2022, #21 in FY2023 and #29 in FY2024; down 1 since FY2024.
31	Govcio, LLC Top agencies VA (Department of Veterans Affairs)	$88,553,508	0.5%	Rank history: not on the FY2021 list, #41 in FY2022, #36 in FY2023 and #42 in FY2024; up 11 since FY2024.
32	Lite Coms LLC Top agencies Navy (Department of the Navy)	$84,992,328	0.4%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; down 5 since FY2024.
33	The Boeing Company 9 awardees, including Jeppesen Foreflight, Inc., Tapestry Solutions, Inc. and Foreflight LLC Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) Navy (Department of the Navy)	$83,959,259	0.4%	Rank history: #43 in FY2021, #22 in FY2022, #18 in FY2023 and #32 in FY2024; down 1 since FY2024.
34	ManTech International Corporation 3 awardees, including Unison Software Inc., Mantech Advanced Systems International, Inc. and ECI Software Solutions, Inc. Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) DOT (Department of Transportation)	$78,518,971	0.4%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 21 since FY2024.
35	Broadcom Inc. 2 awardees, including CA, Inc. and Maverick Networks Inc. Top agencies SSA (Social Security Administration) DISA (Defense Information Systems Agency) USDA (Department of Agriculture)	$76,137,325	0.4%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; up 12 since FY2024.
36	Dataminr Inc. Top agencies USAF (Department of the Air Force)	$69,606,970	0.4%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; up 9 since FY2024.
37	Monkton, Inc. Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) ED (Department of Education)	$69,116,170	0.4%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #73 in FY2024; up 36 since FY2024.
38	Eagle Harbor, LLC Top agencies DOJ (Department of Justice)	$68,393,183	0.4%	Rank history: #88 in FY2021, #70 in FY2022, #58 in FY2023 and #37 in FY2024; down 1 since FY2024.
39	KBR Wyle Services LLC Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce)	$67,115,966	0.3%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2024; up 39 since FY2024.
40	T-Mobile Secure Federal Operations LLC Top agencies DHS (Department of Homeland Security) DISA (Defense Information Systems Agency)	$58,003,293	0.3%	Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
41	World Wide Technology LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$57,670,302	0.3%	Rank history: not on the FY2021–FY2024 lists; up 92 since FY2024.
42	Thomson Company Inc the Through West Publishing Corporation Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$56,358,219	0.3%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; down 9 since FY2024.
43	Allium US Holding LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$55,280,074	0.3%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2024; up 22 since FY2024.
44	Copper River Data Solutions, LLC Top agencies Army (Department of the Army) DISA (Defense Information Systems Agency)	$55,091,117	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
45	Priority Fulfillment Services, Inc. Top agencies Treasury (Department of the Treasury)	$54,210,113	0.3%	Rank history: not on the FY2021–FY2024 lists; up 401 since FY2024.
46	Oracle Health Government Services Inc. Through Oracle America, Inc. Top agencies Army (Department of the Army) DISA (Defense Information Systems Agency) DHRA (Defense Human Resources Activity)	$50,989,497	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
47	At&T Technical Services Company, Inc. Top agencies DOS (Department of State) DISA (Defense Information Systems Agency) Treasury (Department of the Treasury)	$50,272,114	0.3%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; down 4 since FY2024.
48	Manhattan Telecommunications Corporation LLC Top agencies SSA (Social Security Administration) GSA (General Services Administration) Navy (Department of the Navy)	$46,079,624	0.2%	Rank history: #68 in FY2021, #55 in FY2022, #35 in FY2023 and #39 in FY2024; down 9 since FY2024.
49	Full Spectrum Operations LLC Top agencies USAF (Department of the Air Force)	$45,777,739	0.2%	Rank history: #99 in FY2021, #61 in FY2022, not on the FY2023 list and #74 in FY2024; up 25 since FY2024.
50	Five Rivers Analytics, LLC Top agencies USAF (Department of the Air Force)	$45,395,108	0.2%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 13 since FY2024.
51	Sierra Nevada Company, LLC 3 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) DTRA (Defense Threat Reduction Agency)	$43,927,797	0.2%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; down 11 since FY2024.
52	Four LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$43,119,281	0.2%	Rank history: #22 in FY2021, #14 in FY2022, #22 in FY2023 and #34 in FY2024; down 18 since FY2024.
53	Computer World Services Corp. Top agencies USAF (Department of the Air Force)	$42,104,993	0.2%	Rank history: not on the FY2021–FY2024 lists; up 157 since FY2024.
54	Ignite Digital Federal Services, LLC Top agencies Navy (Department of the Navy) DHA (Defense Health Agency)	$38,617,068	0.2%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and #56 in FY2024; up 2 since FY2024.
55	Artel LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOL (Department of Labor)	$35,576,426	0.2%	Rank history: #46 in FY2021, #48 in FY2022, #44 in FY2023 and #36 in FY2024; down 19 since FY2024.
56	Ventera LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$35,159,441	0.2%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and #66 in FY2024; up 10 since FY2024.
57	Samtek Inc. Top agencies HHS (Department of Health and Human Services)	$34,213,889	0.2%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 41 since FY2024.
58	T-Mobile Usa, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Navy (Department of the Navy)	$34,150,588	0.2%	Rank history: not on the FY2021–FY2024 lists; up 78 since FY2024.
59	Avaya Federal Solutions Inc Top agencies SSA (Social Security Administration)	$33,395,151	0.2%	Rank history: not on the FY2021–FY2024 lists; up 268 since FY2024.
60	The Mathworks, Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$33,296,627	0.2%	Rank history: #98 in FY2021, #88 in FY2022, #71 in FY2023 and #71 in FY2024; up 11 since FY2024.
61	Cox Subscriptions, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$32,564,078	0.2%	Rank history: not on the FY2021 list, #86 in FY2022, #77 in FY2023 and #81 in FY2024; up 20 since FY2024.
62	Casepoint, LLC Top agencies SEC (Securities and Exchange Commission) OSD (Office of the Secretary of Defense) DHS (Department of Homeland Security)	$31,884,920	0.2%	Rank history: not on the FY2021–FY2024 lists; up 88 since FY2024.
63	BAE Systems 5 awardees, including BAE Systems Technology Solutions & Services Inc., BAE Systems Onearc Usa, Inc. and BAE Systems Information and Electronic Systems Integration Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$31,865,225	0.2%	Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
64	Cornerstone Ondemand Inc. 3 awardees, including Provation Software, Inc., Programming Research Limited and Perforce Software Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) NASA (National Aeronautics and Space Administration)	$31,593,396	0.2%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 30 since FY2024.
65	At&T Enterprises, LLC Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$31,592,042	0.2%	Rank history: #56 in FY2021, not on the FY2022–FY2023 lists and #59 in FY2024; down 6 since FY2024.
66	Arctic Slope Regional Corporation 7 awardees, including Asrc Federal System Solutions LLC, Agile Decision Sciences, LLC and Asrc Federal Cyber, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) HHS (Department of Health and Human Services)	$31,547,317	0.2%	Rank history: #97 in FY2021, #96 in FY2022, #90 in FY2023 and #80 in FY2024; up 14 since FY2024.
67	DH Technologies, Inc. Top agencies Army (Department of the Army) DTRA (Defense Threat Reduction Agency) Navy (Department of the Navy)	$31,346,567	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; down 3 since FY2024.
68	BAM Technologies LLC Top agencies USAF (Department of the Air Force)	$30,407,286	0.2%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; unchanged since FY2024.
69	Spinsys-Dine, LLC Top agencies DHA (Defense Health Agency)	$29,170,928	0.2%	Rank history: not on the FY2021–FY2024 lists; up 57 since FY2024.
70	Caelum Research Corporation Top agencies Army (Department of the Army)	$28,815,099	0.1%	Rank history: not on the FY2021–FY2024 lists; up 49 since FY2024.
71	Solid State Scientific Corporation Top agencies USAF (Department of the Air Force)	$28,619,480	0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #77 in FY2024; up 6 since FY2024.
72	Intelsat General Communications LLC Top agencies USAF (Department of the Air Force) DMA (Defense Media Activity) MDA (DOD Missile Defense Agency)	$27,822,536	0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; up 23 since FY2024.
73	Plexsys Interface Products, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$27,652,990	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Poplicus Incorporated Top agencies Army (Department of the Army) Navy (Department of the Navy) DCMA (Defense Contract Management Agency)	$27,240,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
75	Change Healthcare Operations, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$27,165,594	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	Iridium Satellite LLC Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$26,432,292	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; down 1 since FY2024.
77	Manhattan Associates, Inc. Top agencies DHS (Department of Homeland Security)	$25,652,322	0.1%	Rank history: not on the FY2021 list, #99 in FY2022, #84 in FY2023 and #97 in FY2024; up 20 since FY2024.
78	Enterprise Technology Solutions, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$25,607,578	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2024 list; up 27 since FY2024.
79	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$25,086,910	0.1%	Rank history: #35 in FY2021, #29 in FY2022, #19 in FY2023 and #21 in FY2024; down 58 since FY2024.
80	Axon Enterprise, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) USDA (Department of Agriculture)	$24,929,648	0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and #88 in FY2024; up 8 since FY2024.
81	Lhdtsv LLC Top agencies Commerce (Department of Commerce)	$24,657,284	0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #81 in FY2023 and not on the FY2024 list; up 26 since FY2024.
82	Space Sciences and Engineering LLC Top agencies Commerce (Department of Commerce)	$24,345,500	0.1%	Rank history: not on the FY2021–FY2024 lists; up 190 since FY2024.
83	Westat, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$24,242,247	0.1%	Rank history: #54 in FY2021, #53 in FY2022, #51 in FY2023 and #54 in FY2024; down 29 since FY2024.
84	Koniag It Systems, LLC Top agencies DHA (Defense Health Agency) DOS (Department of State) USDA (Department of Agriculture)	$24,178,579	0.1%	Rank history: not on the FY2021–FY2024 lists; up 336 since FY2024.
85	Nice Systems Inc. Top agencies DOT (Department of Transportation)	$24,074,505	0.1%	Rank history: not on the FY2021–FY2024 lists; up 162 since FY2024.
86	Vertosoft LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) USAF (Department of the Air Force)	$23,511,505	0.1%	Rank history: not on the FY2021–FY2024 lists; up 18 since FY2024.
87	Harvard Pilgrim Health Care, Inc. Top agencies HHS (Department of Health and Human Services)	$23,108,350	0.1%	Rank history: #86 in FY2021, not on the FY2022–FY2023 lists and #87 in FY2024; unchanged since FY2024.
88	American Chemical Society Top agencies Commerce (Department of Commerce) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$22,893,743	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	DLT Solutions, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DISA (Defense Information Systems Agency)	$22,739,608	0.1%	Rank history: not on the FY2021–FY2024 lists; up 45 since FY2024.
90	Intuitive Machines, LLC Top agencies NASA (National Aeronautics and Space Administration)	$22,690,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 236 since FY2024.
91	Ebsco Information Services, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$22,603,140	0.1%	Rank history: not on the FY2021–FY2024 lists; up 100 since FY2024.
92	Seneca Strategic Partners, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$22,513,989	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Skillsoft (Us) LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$22,243,255	0.1%	Rank history: not on the FY2021–FY2024 lists; up 59 since FY2024.
94	Northrop Grumman Corporation 11 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$21,635,163	0.1%	Rank history: #20 in FY2021, #21 in FY2022, #33 in FY2023 and #48 in FY2024; down 46 since FY2024.
95	Comcast Government Services LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$21,452,217	0.1%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; down 2 since FY2024.
96	Digitized Schematic Solutions LLC Top agencies USAF (Department of the Air Force)	$20,706,250	0.1%	Rank history: not on the FY2021–FY2024 lists; up 174 since FY2024.
97	Integrated Data Services, LLC Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$19,916,920	0.1%	Rank history: not on the FY2021–FY2024 lists; up 13 since FY2024.
98	Vastec Inc. Top agencies Treasury (Department of the Treasury) Commerce (Department of Commerce) DOT (Department of Transportation)	$19,880,585	0.1%	Rank history: not on the FY2021–FY2024 lists; up 354 since FY2024.
99	Ritenet Corp. Top agencies DMA (Defense Media Activity) DISA (Defense Information Systems Agency) DHS (Department of Homeland Security)	$19,768,373	0.1%	Rank history: #92 in FY2021, not on the FY2022 list, #86 in FY2023 and #99 in FY2024; unchanged since FY2024.
100	New TECH Solutions, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$19,704,468	0.1%	Rank history: not on the FY2021–FY2024 lists; up 21 since FY2024.

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100 of 4,488 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 51

Code	Net obligations	Largest contractor
511 Publishing Industries (except Internet)	$6,534,987,038	Dell Technologies Inc.
517 Telecommunications	$6,217,575,134	At&T Inc.
518 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$3,336,221,045	Amazon Web Services, Inc.
513 Publishing Industries	$1,779,507,469	Palantir Technologies Inc.
519 Web Search Portals, Libraries, Archives, and Other Information Services	$492,267,325	Thomson Company Inc the
512 Motion Picture and Sound Recording Industries	$95,733,964	Nice Systems Inc.
515 Broadcasting (except Internet)	$25,960,973	Verizon Communications Inc.
516 Broadcasting and Content Providers	$22,369,791	O'reilly Media, 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 $19.4 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 NAICS 51 contractors in FY2025?

1. Dell Technologies Inc. ($3.1B), 2. Carahsoft Technology Corp ($1.45B), 3. At&T Inc. ($1.32B), 4. Palantir Technologies Inc. ($731M), 5. Verizon ($613M), 6. Peraton Inc. ($583M), 7. Lumen Technologies Government Solutions, Inc. ($513M), 8. Minburn Technology Group, LLC ($335M), 9. Amazon Web Services, Inc. ($315M), 10. Advantaged Solutions, LLC ($298M).

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