Top 100 Contractors in NAICS 51821: Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services, FY2024

Name: Top 100 Contractors in NAICS 51821: Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services, FY2024
Creator: GovTribe

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

The top 10 won 40% of FY2024 NAICS 51821 contract dollars

Contract obligations: $3,054,182,624 Net of deobligations, by contracts coded NAICS 51821 or a code under it
Contractors: 1,119 Parent companies with an obligation
Largest contractor: Leidos Holdings, Inc. $231 million, 6.8% 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	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services) DOE (Department of Energy)	$231,421,519	6.8%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023 and #4 in FY2025; unchanged since FY2023.
2	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation)	$194,066,990	5.7%	Rank history: #4 in FY2021, #6 in FY2022, #2 in FY2023 and #9 in FY2025; unchanged since FY2023.
3	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	5.5%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
4	Advantaged Solutions, LLC Top agencies DLA (Defense Logistics Agency)	$187,103,876	5.5%	Rank history: not on the FY2021 list, #3 in FY2022, #5 in FY2023 and #3 in FY2025; up 1 since FY2023.
5	International Business Machines Corporation Top agencies VA (Department of Veterans Affairs) Treasury (Department of the Treasury)	$148,957,818	4.4%	Rank history: #5 in FY2021, #5 in FY2022, #4 in FY2023 and #2 in FY2025; down 1 since FY2023.
6	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies HUD (Department of Housing and Urban Development) DHRA (Defense Human Resources Activity) GSA (General Services Administration)	$117,413,763	3.4%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
7	Guidehouse Inc. Through Peraton Technology Services Inc. Top agencies DHS (Department of Homeland Security)	$107,118,241	3.1%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2025; new.
8	Eagle Harbor, LLC Top agencies DOJ (Department of Justice)	$76,815,062	2.2%	Rank history: #22 in FY2021, #16 in FY2022, #14 in FY2023 and #12 in FY2025; up 6 since FY2023.
9	Govcio, LLC Top agencies VA (Department of Veterans Affairs)	$67,975,654	2.0%	Rank history: #46 in FY2021, #14 in FY2022, #8 in FY2023 and #8 in FY2025; down 1 since FY2023.
10	Dataminr Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) HHS (Department of Health and Human Services)	$57,134,842	1.7%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; up 286 since FY2023.
11	Microsoft Corporation 2 awardees, including Github Inc. Top agencies DISA (Defense Information Systems Agency) USDA (Department of Agriculture) OSD (Office of the Secretary of Defense)	$49,179,660	1.4%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and #5 in FY2025; up 22 since FY2023.
12	Thomson Company Inc the Through West Publishing Corporation Top agencies DOJ (Department of Justice) DOD (Department of Defense) Army (Department of the Army)	$47,025,635	1.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
13	Westat, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$46,391,712	1.4%	Rank history: #12 in FY2021, #11 in FY2022, #11 in FY2023 and #29 in FY2025; down 2 since FY2023.
14	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	1.3%	Rank history: not on the FY2021 list, #56 in FY2022, #21 in FY2023 and #15 in FY2025; up 7 since FY2023.
15	Accenture Federal Services LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOI (Department of the Interior)	$39,568,629	1.2%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
16	Pfsweb Inc. Through Priority Fulfillment Services, Inc. Top agencies Treasury (Department of the Treasury)	$38,715,189	1.1%	Rank history: #14 in FY2021, #12 in FY2022, #9 in FY2023 and not on the FY2025 list; down 7 since FY2023.
17	Harvard Pilgrim Health Care, Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$36,191,347	1.1%	Rank history: #13 in FY2021, #13 in FY2022, #16 in FY2023 and #30 in FY2025; down 1 since FY2023.
18	Ventera LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$33,561,501	1.0%	Rank history: not on the FY2021 list, #93 in FY2022, #23 in FY2023 and #16 in FY2025; up 5 since FY2023.
19	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	0.9%	Rank history: #15 in FY2021, #31 in FY2022, #6 in FY2023 and not on the FY2025 list; down 13 since FY2023.
20	The Boeing Company 2 awardees, including Jeppesen Foreflight, Inc. and Foreflight LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$31,481,483	0.9%	Rank history: #72 in FY2021, #18 in FY2022, #18 in FY2023 and #18 in FY2025; down 2 since FY2023.
21	HP Enterprise Services LLC 3 awardees, including Peraton Enterprise Solutions LLC, Peraton Technology Services Inc. and Peraton Inc. Top agencies HUD (Department of Housing and Urban Development) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$31,331,886	0.9%	Rank history: #6 in FY2021, #2 in FY2022, #3 in FY2023 and not on the FY2025 list; down 18 since FY2023.
22	Monkton, Inc. Top agencies DHS (Department of Homeland Security) OSD (Office of the Secretary of Defense) DOJ (Department of Justice)	$31,134,465	0.9%	Rank history: #66 in FY2021, #37 in FY2022, #25 in FY2023 and #11 in FY2025; up 3 since FY2023.
23	Alaska Northstar Resources LLC Top agencies USAF (Department of the Air Force)	$30,102,003	0.9%	Rank history: #68 in FY2021, #33 in FY2022, #27 in FY2023 and #36 in FY2025; up 4 since FY2023.
24	Solid State Scientific Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$29,977,425	0.9%	Rank history: #27 in FY2021, #19 in FY2022, #20 in FY2023 and #23 in FY2025; down 4 since FY2023.
25	Intelligent Waves LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$29,302,773	0.9%	Rank history: #31 in FY2021, #15 in FY2022, #7 in FY2023 and #64 in FY2025; down 18 since FY2023.
26	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	0.8%	Rank history: #47 in FY2021, #48 in FY2022, #41 in FY2023 and not on the FY2025 list; up 15 since FY2023.
27	Relx Inc. 6 awardees, including Lexisnexis Special Services Inc., Elsevier B.V. and Lnrs Data Services Inc. Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$27,862,918	0.8%	Rank history: not on the FY2021 list, #70 in FY2022, #53 in FY2023 and not on the FY2025 list; up 26 since FY2023.
28	Caelum Research Corporation 2 awardees Top agencies Army (Department of the Army)	$26,485,144	0.8%	Rank history: not on the FY2021 list, #43 in FY2022, #24 in FY2023 and #22 in FY2025; down 4 since FY2023.
29	Intelsat General Communications LLC 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$25,783,703	0.8%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #31 in FY2025; down 1 since FY2023.
30	Axon Enterprise, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) NSF (National Science Foundation)	$24,363,119	0.7%	Rank history: not on the FY2021 list, #72 in FY2022, #19 in FY2023 and #27 in FY2025; down 11 since FY2023.
31	KBR Wyle Services LLC 2 awardees Top agencies Commerce (Department of Commerce)	$22,814,998	0.7%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
32	Manhattan Associates, Inc. Top agencies DHS (Department of Homeland Security)	$22,344,125	0.7%	Rank history: #37 in FY2021, #29 in FY2022, #30 in FY2023 and #25 in FY2025; down 2 since FY2023.
33	Samtek Inc. Top agencies HHS (Department of Health and Human Services)	$21,967,416	0.6%	Rank history: not on the FY2021 list, #52 in FY2022, #36 in FY2023 and #17 in FY2025; up 3 since FY2023.
34	Iqvia Government Solutions Inc Top agencies HHS (Department of Health and Human Services)	$21,570,571	0.6%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2025; up 147 since FY2023.
35	Koniag Management Solutions LLC Top agencies DECA (Defense Commissary Agency) ED (Department of Education)	$21,425,774	0.6%	Rank history: #36 in FY2021, #26 in FY2022, #32 in FY2023 and #47 in FY2025; down 3 since FY2023.
36	Lhdtsv LLC Top agencies Commerce (Department of Commerce)	$18,839,348	0.6%	Rank history: #42 in FY2021, #17 in FY2022, #26 in FY2023 and #26 in FY2025; down 10 since FY2023.
37	Spinsys-Dine, LLC Top agencies DHA (Defense Health Agency)	$16,049,882	0.5%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2025; new.
38	Change Healthcare Holdings, Inc. Top agencies VA (Department of Veterans Affairs)	$13,868,080	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
39	Direktoratet for Romvirksomhet Top agencies Commerce (Department of Commerce)	$12,532,492	0.4%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; new.
40	Integrated Data Services, LLC Top agencies USAF (Department of the Air Force)	$12,318,159	0.4%	Rank history: #54 in FY2021, #40 in FY2022, #43 in FY2023 and #40 in FY2025; up 3 since FY2023.
41	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$12,146,777	0.4%	Rank history: #45 in FY2021, #45 in FY2022, #45 in FY2023 and #45 in FY2025; up 4 since FY2023.
42	IMG - Crown Energy Services Joint Venture, LLC Top agencies DOE (Department of Energy)	$12,133,640	0.4%	Rank history: #30 in FY2021, #53 in FY2022, #31 in FY2023 and #43 in FY2025; down 11 since FY2023.
43	Chenega It Enterprise Services, LLC Top agencies EPA (Environmental Protection Agency)	$11,394,953	0.3%	Rank history: #34 in FY2021, #67 in FY2022, #66 in FY2023 and #48 in FY2025; up 23 since FY2023.
44	Vertosoft LLC Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$11,359,700	0.3%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and #52 in FY2025; up 21 since FY2023.
45	Arlluk Technology Solutions LLC Top agencies HHS (Department of Health and Human Services) HUD (Department of Housing and Urban Development) OSD (Office of the Secretary of Defense)	$11,181,673	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
46	Change Healthcare Technologies LLC 2 awardees, including Change Healthcare Holdings, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$11,081,003	0.3%	Rank history: #20 in FY2021, #27 in FY2022, #44 in FY2023 and not on the FY2025 list; down 2 since FY2023.
47	Simple Technology Solutions Inc. 2 awardees, including Applied Cloud Technologies LLC Top agencies DOI (Department of the Interior) OPM (Office of Personnel Management) Treasury (Department of the Treasury)	$10,765,075	0.3%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2025; up 152 since FY2023.
48	Acumen LLC Top agencies HHS (Department of Health and Human Services)	$10,721,221	0.3%	Rank history: #38 in FY2021, #42 in FY2022, #49 in FY2023 and #79 in FY2025; up 1 since FY2023.
49	Medidata Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$10,541,124	0.3%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2025; new.
50	Yardi Systems, LLC Top agencies HUD (Department of Housing and Urban Development)	$10,366,071	0.3%	Rank history: #97 in FY2021, #71 in FY2022, #50 in FY2023 and #49 in FY2025; unchanged since FY2023.
51	BAE Systems PLC Through BAE Systems Technology Solutions & Services Inc. Top agencies USAF (Department of the Air Force)	$10,228,237	0.3%	Rank history: #43 in FY2021, #47 in FY2022, #46 in FY2023 and not on the FY2025 list; down 5 since FY2023.
52	Open SAN Consulting LLC Top agencies DISA (Defense Information Systems Agency) OSD (Office of the Secretary of Defense)	$10,181,804	0.3%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and #97 in FY2025; up 6 since FY2023.
53	Fidelity National Information Services, Inc. Top agencies USDA (Department of Agriculture)	$10,091,602	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 94 since FY2023.
54	Integrityone Partners, Inc. Top agencies DHS (Department of Homeland Security)	$10,077,931	0.3%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
55	Blue Cross & Blue Shield of South Carolina 2 awardees, including Palmetto Gba, LLC Top agencies HHS (Department of Health and Human Services)	$9,418,916	0.3%	Rank history: #9 in FY2021, #8 in FY2022, #13 in FY2023 and not on the FY2025 list; down 42 since FY2023.
56	Navsight Holdings Inc. Through Spire Global Subsidiary, Inc. Top agencies Commerce (Department of Commerce)	$9,402,540	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 54 since FY2023.
57	Galapagos Federal Systems LLC Top agencies USAF (Department of the Air Force)	$9,200,000	0.3%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2025; new.
58	Premier Healthcare Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$8,910,327	0.3%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
59	Echelon Services, LLC Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$8,601,520	0.3%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2025; up 179 since FY2023.
60	Fedresults, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$8,598,119	0.3%	Rank history: #23 in FY2021, #38 in FY2022, #48 in FY2023 and #58 in FY2025; down 12 since FY2023.
61	Application Research Center LLC Top agencies HHS (Department of Health and Human Services)	$8,380,713	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 63 since FY2023.
62	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte Financial Advisory Services LLP Top agencies VA (Department of Veterans Affairs) DOL (Department of Labor) PBGC (Pension Benefit Guaranty Corporation)	$8,172,981	0.2%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2025; new.
63	NEC National Security Systems, Inc. Top agencies DHS (Department of Homeland Security)	$7,950,000	0.2%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2025; new.
64	Complete Discovery Source Inc. Top agencies FTC (Federal Trade Commission) PBGC (Pension Benefit Guaranty Corporation)	$7,830,994	0.2%	Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023 list and #57 in FY2025; up 41 since FY2023.
65	Edgewater Federal Solutions, Inc. Top agencies DOE (Department of Energy)	$7,815,000	0.2%	Rank history: #50 in FY2021, #49 in FY2022, #72 in FY2023 and #73 in FY2025; up 7 since FY2023.
66	Agile Decision Sciences, LLC Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$7,649,025	0.2%	Rank history: #69 in FY2021, #68 in FY2022, #40 in FY2023 and not on the FY2025 list; down 26 since FY2023.
67	Koniag, Inc. Through Kadiak LLC Top agencies DHA (Defense Health Agency)	$7,459,485	0.2%	Rank history: not on the FY2021 list, #84 in FY2022, #37 in FY2023 and #46 in FY2025; down 30 since FY2023.
68	DDC It Services LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$7,183,546	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
69	UnitedHealth Group Incorporated 2 awardees, including The Lewin Group, Inc. and Change Healthcare Technologies LLC Top agencies HHS (Department of Health and Human Services)	$7,143,366	0.2%	Rank history: #26 in FY2021, #44 in FY2022, #60 in FY2023 and not on the FY2025 list; down 9 since FY2023.
70	Mpza LLC Top agencies HHS (Department of Health and Human Services)	$6,923,830	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; up 237 since FY2023.
71	Kadiak LLC Top agencies DHA (Defense Health Agency)	$6,826,583	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	Healthverity Inc. Top agencies HHS (Department of Health and Human Services)	$6,657,650	0.2%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and #78 in FY2025; up 21 since FY2023.
73	Space Sciences and Engineering LLC Top agencies Commerce (Department of Commerce)	$6,544,450	0.2%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; new.
74	Virtualitics Inc. Top agencies USAF (Department of the Air Force)	$6,524,999	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
75	Infotrend Incorporated Top agencies SEC (Securities and Exchange Commission)	$6,524,867	0.2%	Rank history: #44 in FY2021, #55 in FY2022, #34 in FY2023 and not on the FY2025 list; down 41 since FY2023.
76	Allium US Holding LLC Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) DOT (Department of Transportation)	$6,377,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and #69 in FY2025; up 10 since FY2023.
77	Riva Solutions Inc Top agencies DOL (Department of Labor)	$6,097,181	0.2%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; new.
78	Akamai Technologies Inc. Top agencies DHS (Department of Homeland Security)	$6,049,323	0.2%	Rank history: #77 in FY2021, #76 in FY2022, #74 in FY2023 and not on the FY2025 list; down 4 since FY2023.
79	Cssi Inc. Top agencies DOT (Department of Transportation)	$5,989,418	0.2%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2025; up 47 since FY2023.
80	Asrc Federal Cyber, LLC Top agencies Army (Department of the Army)	$5,480,279	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	Alpha Communications Services LLC Top agencies DISA (Defense Information Systems Agency)	$5,448,277	0.2%	Rank history: not on the FY2021 list, #96 in FY2022, not on the FY2023 list and #98 in FY2025; up 23 since FY2023.
82	Distributed Computing System Solutions Provider, Inc. Top agencies SEC (Securities and Exchange Commission)	$5,240,951	0.2%	Rank history: not on the FY2021 list, #78 in FY2022, not on the FY2023 list and #86 in FY2025; returned.
83	Science Applications International Corporation Top agencies DOI (Department of the Interior) USAF (Department of the Air Force)	$5,222,742	0.2%	Rank history: #18 in FY2021, #7 in FY2022, not on the FY2023 list and #34 in FY2025; returned.
84	Dnanexus, Inc. Top agencies HHS (Department of Health and Human Services)	$5,197,128	0.2%	Rank history: not on the FY2021 list, #85 in FY2022, #80 in FY2023 and not on the FY2025 list; down 4 since FY2023.
85	Casepoint, LLC Top agencies OSD (Office of the Secretary of Defense)	$5,012,160	0.1%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2025; up 23 since FY2023.
86	Tekpro Support Services, LLC Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$4,945,410	0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2025 list; down 1 since FY2023.
87	22ND Century Technologies Inc. Top agencies Treasury (Department of the Treasury)	$4,818,750	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
88	International Health Terminology Standards Development Organisation Top agencies HHS (Department of Health and Human Services)	$4,765,864	0.1%	Rank history: #88 in FY2021, #77 in FY2022, #84 in FY2023 and #93 in FY2025; down 4 since FY2023.
89	Iron Mountain Incorporated 2 awardees, including Iron Mountain Information Management LLC Top agencies Treasury (Department of the Treasury) NASA (National Aeronautics and Space Administration) DOE (Department of Energy)	$4,738,267	0.1%	Rank history: #81 in FY2021, #51 in FY2022, not on the FY2023 list and not on the FY2025 list; up 27 since FY2023.
90	Redhorse Corporation Top agencies USAF (Department of the Air Force)	$4,699,376	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
91	Quality Information Partners, Inc. Top agencies ED (Department of Education)	$4,592,537	0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #89 in FY2023 and not on the FY2025 list; down 2 since FY2023.
92	Navancio LLC Top agencies HHS (Department of Health and Human Services)	$4,496,524	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	Fedtribe LLC Top agencies SBA (Small Business Administration)	$4,480,061	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Focus Nava JV I LLC Top agencies Treasury (Department of the Treasury)	$4,463,753	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Battelle Memorial Institute Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$4,439,535	0.1%	Rank history: #92 in FY2021, #75 in FY2022, #87 in FY2023 and not on the FY2025 list; down 8 since FY2023.
96	Google Public Sector LLC Top agencies DISA (Defense Information Systems Agency) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$4,375,201	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and #56 in FY2025; down 4 since FY2023.
97	Arrowpoint Corporation Top agencies DCSA (Defense Counterintelligence and Security Agency)	$4,299,198	0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2025; up 37 since FY2023.
98	Qualx, LLC Top agencies Army (Department of the Army) DOS (Department of State) VA (Department of Veterans Affairs)	$4,138,424	0.1%	Rank history: #59 in FY2021, #50 in FY2022, #59 in FY2023 and not on the FY2025 list; down 39 since FY2023.
99	Department of State Health Services Top agencies SSA (Social Security Administration)	$4,051,676	0.1%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2025; new.
100	Alphabet Inc. Through Google LLC Top agencies USDA (Department of Agriculture)	$3,965,961	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.

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100 of 1,119 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 51821

Code	Net obligations	Largest contractor
518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$3,054,182,624	Leidos Holdings, 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 $3.42 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 51821 contractors in FY2024?

1. Leidos Holdings, Inc. ($231M), 2. General Dynamics Corporation ($194M), 3. Amazon Web Services, Inc. ($189M), 4. Advantaged Solutions, LLC ($187M), 5. International Business Machines Corporation ($149M), 6. Peraton Inc. ($117M), 7. Guidehouse Inc. ($107M), 8. Eagle Harbor, LLC ($76.8M), 9. Govcio, LLC ($68M), 10. Dataminr Inc. ($57.1M).

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