Top 100 Contractors in NAICS 51: Information, FY2024

Name: Top 100 Contractors in NAICS 51: Information, FY2024
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 41% of FY2024 NAICS 51 contract dollars

Contract obligations: $17,788,705,119 Net of deobligations, by contracts coded NAICS 51 or a code under it
Contractors: 5,332 Parent companies with an obligation
Largest contractor: Dell Technologies Inc. $2.02 billion, 10.7% of obligations
Data as of: Oct 14, 2026

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

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Dell Technologies Inc. 2 awardees, including Dell Federal Systems L.P and Dell Marketing L.P. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Navy (Department of the Navy)	$2,019,729,817	10.7%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
2	Carahsoft Technology Corp Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,336,612,771	7.1%	Rank history: #1 in FY2021, #3 in FY2022, #3 in FY2023 and #2 in FY2025; up 1 since FY2023.
3	At&T Inc. 56 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)	$1,210,365,063	6.4%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #3 in FY2025; down 1 since FY2023.
4	Dell Federal Systems L.P. 3 awardees, including Dell Marketing L.P. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,064,657,196	5.6%	Rank history: #3 in FY2021, #1 in FY2022, #1 in FY2023 and not on the FY2025 list; down 3 since FY2023.
5	Verizon 12 awardees, including Verizon Business Network Services LLC, Cellco Partnership and MCI Communications Services LLC Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services) DISA (Defense Information Systems Agency)	$613,890,419	3.2%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
6	Palantir Technologies Inc. 2 awardees, including Palantir USG Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) HHS (Department of Health and Human Services)	$468,582,021	2.5%	Rank history: #12 in FY2021, #8 in FY2022, #7 in FY2023 and #4 in FY2025; up 1 since FY2023.
7	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce) HUD (Department of Housing and Urban Development)	$351,320,768	1.9%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
8	General Dynamics Corporation 8 awardees, including General Dynamics Information Technology, Inc., General Dynamics Mission Systems, Inc. and Praxis Engineering Technologies LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) DOT (Department of Transportation)	$248,010,351	1.3%	Rank history: #5 in FY2021, #13 in FY2022, #8 in FY2023 and #16 in FY2025; unchanged since FY2023.
9	Lumen Technologies, Inc. 21 awardees, including Lumen Technologies Government Solutions, Inc., Level 3 Communications, LLC and Level 3 Telecom Holdings, LLC Top agencies VA (Department of Veterans Affairs) DISA (Defense Information Systems Agency) DOI (Department of the Interior)	$243,967,831	1.3%	Rank history: #8 in FY2021, #7 in FY2022, #6 in FY2023 and not on the FY2025 list; down 3 since FY2023.
10	Minburn Technology Group, LLC Top agencies Treasury (Department of the Treasury) DISA (Defense Information Systems Agency) USAF (Department of the Air Force)	$224,440,170	1.2%	Rank history: #16 in FY2021, #16 in FY2022, #12 in FY2023 and #8 in FY2025; up 2 since FY2023.
11	Advantaged Solutions, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) HHS (Department of Health and Human Services)	$223,717,417	1.2%	Rank history: #30 in FY2021, #11 in FY2022, #14 in FY2023 and #10 in FY2025; up 3 since FY2023.
12	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)	$222,427,443	1.2%	Rank history: #11 in FY2021, #9 in FY2022, #9 in FY2023 and #17 in FY2025; down 3 since FY2023.
13	Space Exploration Technologies Corp. 2 awardees Top agencies DISA (Defense Information Systems Agency) VA (Department of Veterans Affairs) DOS (Department of State)	$217,001,710	1.1%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; up 102 since FY2023.
14	Lockheed Martin Corporation 8 awardees, including Lockheed Martin Services, LLC Top agencies USAF (Department of the Air Force)	$196,366,339	1.0%	Rank history: #21 in FY2021, #15 in FY2022, #15 in FY2023 and #18 in FY2025; up 1 since FY2023.
15	Amazon Web Services, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$188,917,023	1.0%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
16	Environmental Systems Research Institute, Inc. 2 awardees Top agencies Army (Department of the Army) USDA (Department of Agriculture) USAF (Department of the Air Force)	$154,931,598	0.8%	Rank history: #25 in FY2021, #20 in FY2022, #17 in FY2023 and #22 in FY2025; up 1 since FY2023.
17	Fors Marsh Group LLC Top agencies HHS (Department of Health and Human Services)	$153,833,158	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 106 since FY2023.
18	Accenture Federal Services LLC 3 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) SSA (Social Security Administration)	$149,446,167	0.8%	Rank history: #33 in FY2021, #28 in FY2022, #26 in FY2023 and #21 in FY2025; up 8 since FY2023.
19	International Business Machines Corporation 2 awardees Top agencies VA (Department of Veterans Affairs) Treasury (Department of the Treasury) DOT (Department of Transportation)	$148,416,613	0.8%	Rank history: #23 in FY2021, #26 in FY2022, #16 in FY2023 and #12 in FY2025; down 3 since FY2023.
20	Global Enterprise Solutions Inc. Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army) USAF (Department of the Air Force)	$145,401,318	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
21	Booz Allen Hamilton Holding Corporation 2 awardees, including Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$141,071,460	0.7%	Rank history: #35 in FY2021, #29 in FY2022, #19 in FY2023 and #79 in FY2025; down 2 since FY2023.
22	Reed Technology and Information Services LLC Top agencies Commerce (Department of Commerce) SSA (Social Security Administration)	$127,176,737	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
23	Lumen Technologies Government Solutions, Inc. 2 awardees Top agencies DOI (Department of the Interior) USDA (Department of Agriculture) DISA (Defense Information Systems Agency)	$126,615,623	0.7%	Rank history: #69 in FY2021, #37 in FY2022, not on the FY2023 list and #7 in FY2025; up 271 since FY2023.
24	Inmarsat Government, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$126,381,037	0.7%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2025; new.
25	L3Harris Technologies, Inc. 9 awardees, including L3Harris Technologies Integrated Systems L.P., L3 Technologies, Inc. and NV5 Geospatial Solutions, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$109,938,923	0.6%	Rank history: #31 in FY2021, #25 in FY2022, #34 in FY2023 and #27 in FY2025; up 9 since FY2023.
26	Guidehouse Inc. Through Peraton Technology Services Inc. Top agencies DHS (Department of Homeland Security)	$107,118,241	0.6%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
27	Lite Coms LLC Top agencies Navy (Department of the Navy) DMA (Defense Media Activity) DISA (Defense Information Systems Agency)	$106,540,854	0.6%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; up 183 since FY2023.
28	Widepoint Corporation Through Widepoint Integrated Solutions Corp Top agencies DHS (Department of Homeland Security) FCC (Federal Communications Commission) NSF (National Science Foundation)	$105,387,759	0.6%	Rank history: #42 in FY2021, #36 in FY2022, #24 in FY2023 and not on the FY2025 list; down 4 since FY2023.
29	Viasat Inc. 2 awardees Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) Army (Department of the Army)	$104,727,905	0.6%	Rank history: #27 in FY2021, #17 in FY2022, #21 in FY2023 and #30 in FY2025; down 8 since FY2023.
30	Relx Inc. 16 awardees, including Elsevier B.V., Elsevier Inc. and Lexisnexis Risk Solutions Inc. Top agencies DOJ (Department of Justice) SEC (Securities and Exchange Commission) Commerce (Department of Commerce)	$100,449,119	0.5%	Rank history: not on the FY2021 list, #92 in FY2022, #31 in FY2023 and #13 in FY2025; up 1 since FY2023.
31	HP Enterprise Services LLC 5 awardees, including Peraton Inc., Peraton Enterprise Solutions LLC and Peraton Technology Services Inc. Top agencies NASA (National Aeronautics and Space Administration) HUD (Department of Housing and Urban Development) USAF (Department of the Air Force)	$99,850,199	0.5%	Rank history: #6 in FY2021, #5 in FY2022, #5 in FY2023 and not on the FY2025 list; down 26 since FY2023.
32	The Boeing Company 10 awardees, including Jeppesen Foreflight, Inc., Boeing Comsatcom Services, Inc. and Tapestry Solutions, Inc. Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) Navy (Department of the Navy)	$99,353,451	0.5%	Rank history: #43 in FY2021, #22 in FY2022, #18 in FY2023 and #33 in FY2025; down 14 since FY2023.
33	Thomson Company Inc the 2 awardees, including West Publishing Corporation and Reuters News & Media Inc. Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$96,233,981	0.5%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2025; up 290 since FY2023.
34	Four LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) Treasury (Department of the Treasury)	$92,409,593	0.5%	Rank history: #22 in FY2021, #14 in FY2022, #22 in FY2023 and #52 in FY2025; down 12 since FY2023.
35	Indyne, Inc. Top agencies USAF (Department of the Air Force)	$90,361,844	0.5%	Rank history: #44 in FY2021, #33 in FY2022, #32 in FY2023 and #28 in FY2025; down 3 since FY2023.
36	Artel LLC Top agencies DISA (Defense Information Systems Agency) Army (Department of the Army) USAF (Department of the Air Force)	$84,771,515	0.4%	Rank history: #46 in FY2021, #48 in FY2022, #44 in FY2023 and #55 in FY2025; up 8 since FY2023.
37	Eagle Harbor, LLC Top agencies DOJ (Department of Justice)	$76,815,062	0.4%	Rank history: #88 in FY2021, #70 in FY2022, #58 in FY2023 and #38 in FY2025; up 21 since FY2023.
38	Consulting Services Group, LLC Top agencies Army (Department of the Army)	$74,622,808	0.4%	Rank history: #96 in FY2021, #74 in FY2022, #43 in FY2023 and #29 in FY2025; up 5 since FY2023.
39	Manhattan Telecommunications Corporation LLC Top agencies SSA (Social Security Administration) GSA (General Services Administration) VA (Department of Veterans Affairs)	$74,527,120	0.4%	Rank history: #68 in FY2021, #55 in FY2022, #35 in FY2023 and #48 in FY2025; down 4 since FY2023.
40	Sierra Nevada Company, LLC 2 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$73,599,500	0.4%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; new.
41	Reed Elsevier Inc. 4 awardees, including Reed Technology and Information Services LLC, Matthew Bender & Company Inc. and Portfolio Media Inc. Top agencies Commerce (Department of Commerce) DOJ (Department of Justice) Army (Department of the Army)	$72,276,736	0.4%	Rank history: #10 in FY2021, #10 in FY2022, #11 in FY2023 and not on the FY2025 list; down 30 since FY2023.
42	Govcio, LLC Top agencies VA (Department of Veterans Affairs)	$67,975,654	0.4%	Rank history: not on the FY2021 list, #41 in FY2022, #36 in FY2023 and #31 in FY2025; down 6 since FY2023.
43	At&T Technical Services Company, Inc. Top agencies DOS (Department of State) Treasury (Department of the Treasury) DISA (Defense Information Systems Agency)	$67,531,686	0.4%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
44	SMS Data Products Group Inc. Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$62,639,997	0.3%	Rank history: #29 in FY2021, #23 in FY2022, #25 in FY2023 and not on the FY2025 list; down 19 since FY2023.
45	Dataminr Inc. Top agencies USAF (Department of the Air Force) AOUSC (Administrative Office of the U.S. Courts) Army (Department of the Army)	$57,383,390	0.3%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2025; up 166 since FY2023.
46	Iridium Government Services LLC Top agencies DISA (Defense Information Systems Agency)	$54,415,494	0.3%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2025; new.
47	Broadcom Inc. Through CA, Inc. Top agencies SSA (Social Security Administration) DISA (Defense Information Systems Agency)	$51,982,009	0.3%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2025; new.
48	Northrop Grumman Corporation 12 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) NASA (National Aeronautics and Space Administration)	$51,693,509	0.3%	Rank history: #20 in FY2021, #21 in FY2022, #33 in FY2023 and #94 in FY2025; down 15 since FY2023.
49	Caci Technologies LLC 3 awardees, including Caci Nss, LLC Top agencies USAF (Department of the Air Force)	$50,086,590	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
50	Microsoft Corporation 3 awardees, including Github Inc. Top agencies DISA (Defense Information Systems Agency) USDA (Department of Agriculture) OSD (Office of the Secretary of Defense)	$49,319,157	0.3%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; up 56 since FY2023.
51	Abacus Technology Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$49,309,999	0.3%	Rank history: #45 in FY2021, #47 in FY2022, #45 in FY2023 and not on the FY2025 list; down 6 since FY2023.
52	SES Government Solutions Inc. Through SES Space & Defense, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$48,504,603	0.3%	Rank history: #32 in FY2021, #44 in FY2022, #28 in FY2023 and not on the FY2025 list; down 24 since FY2023.
53	CACI International Inc. 7 awardees, including Caci Nss, LLC, LGS Innovations LLC and Systemware, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DTRA (Defense Threat Reduction Agency)	$46,436,108	0.2%	Rank history: #7 in FY2021, #12 in FY2022, #10 in FY2023 and #14 in FY2025; down 43 since FY2023.
54	Westat, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$46,391,712	0.2%	Rank history: #54 in FY2021, #53 in FY2022, #51 in FY2023 and #83 in FY2025; down 3 since FY2023.
55	ManTech International Corporation 3 awardees, including Unison Software Inc. and ECI Software Solutions, Inc. Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) DOT (Department of Transportation)	$45,794,806	0.2%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; new.
56	Ignite Digital Federal Services, LLC Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) USAF (Department of the Air Force)	$45,599,750	0.2%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and #54 in FY2025; up 16 since FY2023.
57	Tsymmetry Inc. Top agencies DOS (Department of State)	$43,290,813	0.2%	Rank history: #67 in FY2021, #83 in FY2022, #59 in FY2023 and not on the FY2025 list; up 2 since FY2023.
58	Technology Solutions Provider, LLC Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services) GSA (General Services Administration)	$42,025,324	0.2%	Rank history: not on the FY2021 list, #40 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
59	At&T Enterprises, LLC Top agencies USDA (Department of Agriculture) Navy (Department of the Navy) Army (Department of the Army)	$39,409,712	0.2%	Rank history: #56 in FY2021, not on the FY2022–FY2023 lists and #65 in FY2025; returned.
60	Pfsweb Inc. Through Priority Fulfillment Services, Inc. Top agencies Treasury (Department of the Treasury)	$38,715,189	0.2%	Rank history: #64 in FY2021, #62 in FY2022, #38 in FY2023 and not on the FY2025 list; down 22 since FY2023.
61	SES Space & Defense Inc. 2 awardees, including Global Enterprise Solutions, Inc. Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army) USAF (Department of the Air Force)	$37,895,526	0.2%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; new.
62	BT Americas Inc. 2 awardees, including 22Nd Century Networks, Inc. and British Telecommunications Public Limited Company Top agencies DISA (Defense Information Systems Agency) USAF (Department of the Air Force) Army (Department of the Army)	$37,596,434	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 105 since FY2023.
63	Five Rivers Analytics, LLC Top agencies USAF (Department of the Air Force)	$36,956,847	0.2%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; new.
64	DH Technologies, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$36,935,156	0.2%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2025; up 98 since FY2023.
65	Allium US Holding LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$34,331,198	0.2%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; up 224 since FY2023.
66	Ventera LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$33,561,501	0.2%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and #56 in FY2025; up 10 since FY2023.
67	Amazon.com, Inc. Through Amazon Web Services, Inc. Top agencies GSA (General Services Administration) USAF (Department of the Air Force) Navy (Department of the Navy)	$32,285,225	0.2%	Rank history: #65 in FY2021, not on the FY2022 list, #27 in FY2023 and not on the FY2025 list; down 40 since FY2023.
68	BAM Technologies LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$32,229,040	0.2%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2025; up 293 since FY2023.
69	Mythics Inc. 2 awardees, including Emergent, LLC Top agencies DHS (Department of Homeland Security) Smithsonian (Smithsonian Institution) USAGM (US Agency for Global Media)	$32,004,533	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
70	Koniag, Inc. 2 awardees, including Digitized Schematic Solutions LLC and Kadiak LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$31,837,794	0.2%	Rank history: #93 in FY2021, #59 in FY2022, #47 in FY2023 and not on the FY2025 list; down 23 since FY2023.
71	The Mathworks, Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$31,786,297	0.2%	Rank history: #98 in FY2021, #88 in FY2022, #71 in FY2023 and #60 in FY2025; unchanged since FY2023.
72	Talton Communications Inc. Top agencies DHS (Department of Homeland Security)	$31,352,485	0.2%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2023 and not on the FY2025 list; up 3 since FY2023.
73	Monkton, Inc. Top agencies DHS (Department of Homeland Security) OSD (Office of the Secretary of Defense) DOJ (Department of Justice)	$31,134,465	0.2%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #37 in FY2025; up 7 since FY2023.
74	Full Spectrum Operations LLC Top agencies USAF (Department of the Air Force)	$30,720,383	0.2%	Rank history: #99 in FY2021, #61 in FY2022, not on the FY2023 list and #49 in FY2025; returned.
75	Iridium Satellite LLC Top agencies DISA (Defense Information Systems Agency) USAF (Department of the Air Force)	$30,200,613	0.2%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2025; new.
76	Alaska Northstar Resources LLC Top agencies USAF (Department of the Air Force)	$30,102,003	0.2%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and not on the FY2025 list; up 6 since FY2023.
77	Solid State Scientific Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$29,977,425	0.2%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #71 in FY2025; down 10 since FY2023.
78	KBR Wyle Services LLC Top agencies Commerce (Department of Commerce) NASA (National Aeronautics and Space Administration)	$29,721,913	0.2%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
79	Intelligent Waves LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$29,302,773	0.2%	Rank history: not on the FY2021 list, #66 in FY2022, #30 in FY2023 and not on the FY2025 list; down 49 since FY2023.
80	Arctic Slope Regional Corporation 6 awardees, including Asrc Federal System Solutions LLC, Asrc Federal Professional Services, LLC and Asrc Federal Data Networx, LLC Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) NRC (Nuclear Regulatory Commission)	$28,670,246	0.2%	Rank history: #97 in FY2021, #96 in FY2022, #90 in FY2023 and #66 in FY2025; up 10 since FY2023.
81	Cox Subscriptions, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$28,288,119	0.1%	Rank history: not on the FY2021 list, #86 in FY2022, #77 in FY2023 and #61 in FY2025; down 4 since FY2023.
82	Oracle Corporation 2 awardees, including Oracle America, Inc. Top agencies Army (Department of the Army) DISA (Defense Information Systems Agency) DHRA (Defense Human Resources Activity)	$27,939,614	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 49 since FY2023.
83	Avaya Federal Solutions Inc. 2 awardees Top agencies SSA (Social Security Administration)	$27,511,107	0.1%	Rank history: #76 in FY2021, #42 in FY2022, #49 in FY2023 and not on the FY2025 list; down 34 since FY2023.
84	Stratos Government Services, Inc. Through Inmarsat Government, Inc. Top agencies Navy (Department of the Navy) DOS (Department of State)	$27,247,123	0.1%	Rank history: #26 in FY2021, #18 in FY2022, #23 in FY2023 and not on the FY2025 list; down 61 since FY2023.
85	Verizon Communications Inc. 19 awardees, including Cellco Partnership, Verizon Federal Inc. and Verizon Washington, DC Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) DMA (Defense Media Activity)	$26,223,109	0.1%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and not on the FY2025 list; down 81 since FY2023.
86	Iqvia Government Solutions Inc Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$26,144,080	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 264 since FY2023.
87	Harvard Pilgrim Health Care, Inc. Top agencies HHS (Department of Health and Human Services)	$25,327,180	0.1%	Rank history: #86 in FY2021, not on the FY2022–FY2023 lists and #87 in FY2025; returned.
88	Axon Enterprise, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) USDA (Department of Agriculture)	$24,698,951	0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and #80 in FY2025; down 23 since FY2023.
89	Fedresults, Inc. Top agencies Navy (Department of the Navy) SSA (Social Security Administration) USAF (Department of the Air Force)	$24,654,271	0.1%	Rank history: #71 in FY2021, #64 in FY2022, #94 in FY2023 and not on the FY2025 list; up 5 since FY2023.
90	Gartner, Inc. 2 awardees Top agencies DOS (Department of State) USDA (Department of Agriculture) DHS (Department of Homeland Security)	$24,483,201	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 17 since FY2023.
91	Valdez International Corporation Top agencies USAF (Department of the Air Force)	$24,303,970	0.1%	Rank history: #62 in FY2021, #77 in FY2022, #66 in FY2023 and not on the FY2025 list; down 25 since FY2023.
92	American Chemical Society 2 awardees Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) USDA (Department of Agriculture)	$24,171,439	0.1%	Rank history: #95 in FY2021, #84 in FY2022, #83 in FY2023 and not on the FY2025 list; down 9 since FY2023.
93	Comcast Government Services LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$23,863,374	0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2025; new.
94	Cornerstone Ondemand Inc. Through Provation Software, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$23,534,459	0.1%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; new.
95	Intelsat General Communications LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$23,525,799	0.1%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2025; new.
96	CA Inc. Top agencies SSA (Social Security Administration)	$22,943,662	0.1%	Rank history: #36 in FY2021, #34 in FY2022, #41 in FY2023 and not on the FY2025 list; down 55 since FY2023.
97	Manhattan Associates, Inc. Top agencies DHS (Department of Homeland Security)	$22,121,527	0.1%	Rank history: not on the FY2021 list, #99 in FY2022, #84 in FY2023 and #77 in FY2025; down 13 since FY2023.
98	Samtek Inc. Top agencies HHS (Department of Health and Human Services)	$21,967,416	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2025; up 13 since FY2023.
99	Ritenet Corp. Top agencies DMA (Defense Media Activity) DISA (Defense Information Systems Agency) Army (Department of the Army)	$21,950,922	0.1%	Rank history: #92 in FY2021, not on the FY2022 list, #86 in FY2023 and #99 in FY2025; down 13 since FY2023.
100	Koniag Management Solutions LLC Top agencies DECA (Defense Commissary Agency) ED (Department of Education) USAID (US Agency for International Development)	$21,813,722	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 3 since FY2023.

Show 75 more

100 of 5,332 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)	$6,855,640,761	Dell Technologies Inc.
517 Telecommunications	$6,053,413,462	At&T Inc.
518 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$3,054,182,624	Leidos Holdings, Inc.
513 Publishing Industries	$1,050,743,068	Palantir Technologies Inc.
519 Web Search Portals, Libraries, Archives, and Other Information Services	$607,806,012	Relx Inc.
512 Motion Picture and Sound Recording Industries	$111,035,278	BLN LLC
515 Broadcasting (except Internet)	$28,143,597	Verizon Communications Inc.
516 Broadcasting and Content Providers	$27,740,317	American Indian Health & Services Corporation

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 $18.9 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 NAICS 51 contractors in FY2024?

1. Dell Technologies Inc. ($2.02B), 2. Carahsoft Technology Corp ($1.34B), 3. At&T Inc. ($1.21B), 4. Dell Federal Systems L.P. ($1.06B), 5. Verizon ($614M), 6. Palantir Technologies Inc. ($469M), 7. Peraton Inc. ($351M), 8. General Dynamics Corporation ($248M), 9. Lumen Technologies, Inc. ($244M), 10. Minburn Technology Group, LLC ($224M).

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