Top 100 Defense Information Systems Agency Contractors, FY2025

Name: Top 100 Defense Information Systems Agency Contractors, FY2025
Creator: GovTribe

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

The top 10 won 43% of FY2025 Defense Information Systems Agency contract dollars

Contract obligations: $4,573,582,952 Net of deobligations, by the Defense Information Systems Agency and its offices
Contractors: 593 Parent companies with an obligation
Largest contractor: Leidos Holdings, Inc. $635 million, 13.0% 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	Leidos Holdings, Inc. 5 awardees, including Leidos, Inc. Top NAICS codes 541513 Computer Facilities Management Services 541512 Computer Systems Design Services	$634,657,591	13.0%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services 541511 Custom Computer Programming Services	$308,265,444	6.3%	Rank history: #4 in FY2021, #5 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Space Exploration Technologies Corp. Top NAICS codes 517410 Satellite Telecommunications	$247,810,743	5.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Lumen Technologies Government Solutions, Inc. 2 awardees Top NAICS codes 517110 Wired Telecommunications Carriers	$162,253,621	3.3%	Rank history: #21 in FY2021, not on the FY2022–FY2023 lists and #48 in FY2024; up 44 since FY2024.
5	General Dynamics Corporation 5 awardees, including General Dynamics Information Technology, Inc., Csra LLC and General Dynamics One Source LLC Top NAICS codes 541519 Other Computer Related Services 541511 Custom Computer Programming Services 334111 Electronic Computer Manufacturing	$153,551,974	3.1%	Rank history: #2 in FY2021, #2 in FY2022, #5 in FY2023 and #4 in FY2024; down 1 since FY2024.
6	Microsoft Corporation Top NAICS codes 541512 Computer Systems Design Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541519 Other Computer Related Services	$125,862,259	2.6%	Rank history: #24 in FY2021, #10 in FY2022, #14 in FY2023 and #7 in FY2024; up 1 since FY2024.
7	Science Applications International Corporation 2 awardees Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services	$125,661,780	2.6%	Rank history: not on the FY2021–FY2024 lists; up 162 since FY2024.
8	Peraton Inc. 3 awardees, including Knight Point Systems, LLC and Peraton Enterprise Solutions LLC Top NAICS codes 541519 Other Computer Related Services 541330 Engineering Services 541511 Custom Computer Programming Services	$124,666,605	2.6%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; up 35 since FY2024.
9	Iron Bow Technologies, LLC Top NAICS codes 541519 Other Computer Related Services	$119,530,126	2.4%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2024; up 83 since FY2024.
10	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 334111 Electronic Computer Manufacturing 513210 Software Publishers	$114,814,305	2.3%	Rank history: #7 in FY2021, #7 in FY2022, #10 in FY2023 and #8 in FY2024; down 2 since FY2024.
11	AOC Connect, LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517111 Wired Telecommunications Carriers	$114,547,381	2.3%	Rank history: not on the FY2021–FY2024 lists; up 433 since FY2024.
12	Iridium Government Services LLC Top NAICS codes 517410 Satellite Telecommunications	$105,959,509	2.2%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; up 4 since FY2024.
13	Verizon 11 awardees, including Verizon Business Network Services LLC, Verizon Deutschland GMBH and MCI Communications Services LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517111 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite)	$90,199,926	1.8%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; unchanged since FY2024.
14	By Light Professional It Services LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517311 Wired Telecommunications Carriers	$81,484,615	1.7%	Rank history: #5 in FY2021, #12 in FY2022, #34 in FY2023 and #9 in FY2024; down 5 since FY2024.
15	Empower AI, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$63,450,468	1.3%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; up 6 since FY2024.
16	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$61,265,738	1.3%	Rank history: #41 in FY2021, #39 in FY2022, #21 in FY2023 and #18 in FY2024; up 2 since FY2024.
17	Thundercat Technology LLC Top NAICS codes 541519 Other Computer Related Services	$56,024,067	1.1%	Rank history: #51 in FY2021, #23 in FY2022, #23 in FY2023 and #17 in FY2024; unchanged since FY2024.
18	Minburn Technology Group, LLC Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services	$52,068,879	1.1%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023 and #10 in FY2024; down 8 since FY2024.
19	Hewlett Packard Enterprise Company Top NAICS codes 541519 Other Computer Related Services	$47,312,787	1.0%	Rank history: #15 in FY2021, #8 in FY2022, #9 in FY2023 and #15 in FY2024; down 4 since FY2024.
20	Agile Defense, LLC Top NAICS codes 541380 Testing Laboratories and Services	$45,892,229	0.9%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; down 1 since FY2024.
21	Dell Technologies Inc. 2 awardees, including Dell Marketing L.P. and Dell Federal Systems L.P Top NAICS codes 511210 Software Publishers 513210 Software Publishers	$40,917,411	0.8%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 56 since FY2024.
22	Deloitte Through Deloitte Consulting LLP Top NAICS codes 541219 Other Accounting Services 541512 Computer Systems Design Services	$40,599,595	0.8%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 11 since FY2024.
23	Competitive Range Solutions LLC Top NAICS codes 541512 Computer Systems Design Services 541330 Engineering Services 541519 Other Computer Related Services	$37,927,438	0.8%	Rank history: #71 in FY2021, #17 in FY2022, #15 in FY2023 and #22 in FY2024; down 1 since FY2024.
24	August Schell Enterprises, Inc. Top NAICS codes 541519 Other Computer Related Services	$37,837,675	0.8%	Rank history: #36 in FY2021, #18 in FY2022, #20 in FY2023 and #14 in FY2024; down 10 since FY2024.
25	Northrop Grumman Corporation 2 awardees, including Northrop Grumman Systems Corporation Top NAICS codes 541512 Computer Systems Design Services 511210 Software Publishers 513210 Software Publishers	$35,849,099	0.7%	Rank history: #18 in FY2021, #46 in FY2022, not on the FY2023 list and #38 in FY2024; up 13 since FY2024.
26	Madian It Solutions LLC Top NAICS codes 541519 Other Computer Related Services	$32,218,967	0.7%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2024; up 41 since FY2024.
27	Validatek-Citi, LLC Top NAICS codes 541512 Computer Systems Design Services	$31,129,690	0.6%	Rank history: #46 in FY2021, #29 in FY2022, #29 in FY2023 and #34 in FY2024; up 7 since FY2024.
28	Sos International LLC Top NAICS codes 541512 Computer Systems Design Services	$29,846,419	0.6%	Rank history: #14 in FY2021, #11 in FY2022, #32 in FY2023 and #24 in FY2024; down 4 since FY2024.
29	Palantir Technologies Inc. Through Palantir USG Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$28,977,672	0.6%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and #85 in FY2024; up 56 since FY2024.
30	Integrated Computer Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$28,561,490	0.6%	Rank history: #83 in FY2021, #97 in FY2022, #68 in FY2023 and #35 in FY2024; up 5 since FY2024.
31	FCN, Inc. Top NAICS codes 541519 Other Computer Related Services	$27,726,441	0.6%	Rank history: not on the FY2021 list, #25 in FY2022, #31 in FY2023 and #12 in FY2024; down 19 since FY2024.
32	Everfox LLC Top NAICS codes 541519 Other Computer Related Services	$27,301,816	0.6%	Rank history: not on the FY2021–FY2024 lists; up 267 since FY2024.
33	Enterprise Resource Planning International, LLC Top NAICS codes 541512 Computer Systems Design Services	$25,139,842	0.5%	Rank history: #97 in FY2021, #81 in FY2022, #78 in FY2023 and #56 in FY2024; up 23 since FY2024.
34	World Wide Technology LLC Top NAICS codes 541519 Other Computer Related Services	$24,635,493	0.5%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and #54 in FY2024; up 20 since FY2024.
35	Alvarez LLC Top NAICS codes 541519 Other Computer Related Services	$22,422,647	0.5%	Rank history: #91 in FY2021, #19 in FY2022, #70 in FY2023 and not on the FY2024 list; up 72 since FY2024.
36	At&T Corp. 7 awardees, including Att Mobility LLC, At&T Enterprises, LLC and At&T Mobility National Accounts LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517112 Wireless Telecommunications Carriers (except Satellite)	$22,277,856	0.5%	Rank history: #42 in FY2021, #26 in FY2022, #17 in FY2023 and #59 in FY2024; up 23 since FY2024.
37	Compqsoft, Inc. Top NAICS codes 541519 Other Computer Related Services	$22,074,932	0.5%	Rank history: #68 in FY2021, #45 in FY2022, #37 in FY2023 and #36 in FY2024; down 1 since FY2024.
38	Arctic Slope Regional Corporation 4 awardees, including Asrc Research and Technology Solutions LLC, Asrc Federal Data Network Technologies, LLC and Asrc Federal Data Networx, LLC Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services	$21,923,950	0.4%	Rank history: #48 in FY2021, #31 in FY2022, #25 in FY2023 and #49 in FY2024; up 11 since FY2024.
39	Iridium Satellite LLC 2 awardees Top NAICS codes 517410 Satellite Telecommunications	$21,259,499	0.4%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; up 11 since FY2024.
40	L3Harris Technologies, Inc. Through L3Harris Technologies Integrated Systems L.P. Top NAICS codes 517410 Satellite Telecommunications	$21,132,366	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
41	Broadcom Inc. Through CA, Inc. Top NAICS codes 513210 Software Publishers	$21,091,012	0.4%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; up 6 since FY2024.
42	Cubic Digital Intelligence Inc. Top NAICS codes 541512 Computer Systems Design Services	$21,034,292	0.4%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 11 since FY2024.
43	RTX Corporation 3 awardees, including Raytheon Company Top NAICS codes 811213 Communication Equipment Repair and Maintenance 541330 Engineering Services	$18,900,702	0.4%	Rank history: #40 in FY2021, #76 in FY2022, #27 in FY2023 and #30 in FY2024; down 13 since FY2024.
44	Sigma Defense Systems LLC Top NAICS codes 541330 Engineering Services 334290 Other Communications Equipment Manufacturing	$17,728,553	0.4%	Rank history: #86 in FY2021, #65 in FY2022, #36 in FY2023 and #32 in FY2024; down 12 since FY2024.
45	Business Computers Management Consulting Group (Bcmc) LLC Top NAICS codes 541512 Computer Systems Design Services	$17,197,648	0.4%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #52 in FY2024; up 7 since FY2024.
46	Advanced Computer Concepts, Inc. Top NAICS codes 541519 Other Computer Related Services	$17,162,583	0.4%	Rank history: #56 in FY2021, #83 in FY2022, #72 in FY2023 and #27 in FY2024; down 19 since FY2024.
47	T-Mobile Secure Federal Operations LLC Top NAICS codes 517111 Wired Telecommunications Carriers 517110 Wired Telecommunications Carriers	$16,604,892	0.3%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 8 since FY2024.
48	Wildflower International, Ltd. Top NAICS codes 541519 Other Computer Related Services	$15,031,370	0.3%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; up 35 since FY2024.
49	Validatek Inc Top NAICS codes 541512 Computer Systems Design Services	$14,671,829	0.3%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and #41 in FY2024; down 8 since FY2024.
50	Expression Networks LLC Top NAICS codes 541519 Other Computer Related Services 541511 Custom Computer Programming Services	$14,610,163	0.3%	Rank history: #49 in FY2021, #57 in FY2022, #39 in FY2023 and #61 in FY2024; up 11 since FY2024.
51	The Boeing Company Top NAICS codes 517410 Satellite Telecommunications	$14,555,435	0.3%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and #31 in FY2024; down 20 since FY2024.
52	Hunter Strategy, LLC Top NAICS codes 541519 Other Computer Related Services 541511 Custom Computer Programming Services	$14,282,354	0.3%	Rank history: not on the FY2021–FY2024 lists; up 49 since FY2024.
53	GTT Global Telecom Government Services, LLC Top NAICS codes 517111 Wired Telecommunications Carriers 517311 Wired Telecommunications Carriers 517911 Telecommunications Resellers	$14,272,244	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
54	Blue TECH Inc. Top NAICS codes 541519 Other Computer Related Services	$13,900,330	0.3%	Rank history: #85 in FY2021, not on the FY2022–FY2023 lists and #65 in FY2024; up 11 since FY2024.
55	Sirius Federal LLC Top NAICS codes 541519 Other Computer Related Services	$13,812,394	0.3%	Rank history: not on the FY2021–FY2024 lists; up 105 since FY2024.
56	Oracle Health Government Services Inc. Through Oracle America, Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541519 Other Computer Related Services	$13,738,148	0.3%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; up 16 since FY2024.
57	Riverside Engineering LLC Top NAICS codes 541512 Computer Systems Design Services	$13,578,815	0.3%	Rank history: not on the FY2021–FY2024 lists; up 312 since FY2024.
58	Interimage, Inc. Top NAICS codes 541511 Custom Computer Programming Services	$13,308,385	0.3%	Rank history: not on the FY2021–FY2024 lists; up 78 since FY2024.
59	Engenius Consulting Group Inc. Top NAICS codes 541512 Computer Systems Design Services	$13,159,800	0.3%	Rank history: not on the FY2021 list, #70 in FY2022, #71 in FY2023 and #60 in FY2024; up 1 since FY2024.
60	Dynamic Systems Inc. Top NAICS codes 541519 Other Computer Related Services	$13,002,411	0.3%	Rank history: not on the FY2021–FY2024 lists; up 88 since FY2024.
61	DH Technologies, Inc. Top NAICS codes 541519 Other Computer Related Services	$12,913,547	0.3%	Rank history: #58 in FY2021, #95 in FY2022, #62 in FY2023 and #76 in FY2024; up 15 since FY2024.
62	Georgia TECH Applied Research Corp Top NAICS codes 541511 Custom Computer Programming Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$12,376,331	0.3%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 2 since FY2024.
63	At&T Technical Services Company, Inc. Top NAICS codes 517311 Wired Telecommunications Carriers 517111 Wired Telecommunications Carriers	$11,575,298	0.2%	Rank history: not on the FY2021–FY2024 lists; up 59 since FY2024.
64	Trace Systems, Inc. Top NAICS codes 541512 Computer Systems Design Services 517410 Satellite Telecommunications	$11,416,335	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
65	Indrasoft Inc. Top NAICS codes 541519 Other Computer Related Services	$11,142,426	0.2%	Rank history: #74 in FY2021 and not on the FY2022–FY2024 lists; up 72 since FY2024.
66	New Generation Solution LLC Top NAICS codes 541512 Computer Systems Design Services	$10,997,438	0.2%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023 and not on the FY2024 list; up 72 since FY2024.
67	Ipkeys Technologies LLC Top NAICS codes 541519 Other Computer Related Services	$10,969,773	0.2%	Rank history: #60 in FY2021, #55 in FY2022, #44 in FY2023 and #45 in FY2024; down 22 since FY2024.
68	International Business Machines Corporation 2 awardees Top NAICS codes 541511 Custom Computer Programming Services	$10,327,583	0.2%	Rank history: #6 in FY2021, #96 in FY2022, #67 in FY2023 and not on the FY2024 list; up 35 since FY2024.
69	Sterling Computers Corporation Top NAICS codes 541519 Other Computer Related Services	$9,854,176	0.2%	Rank history: not on the FY2021 list, #71 in FY2022, #61 in FY2023 and #73 in FY2024; up 4 since FY2024.
70	Norseman Inc. Top NAICS codes 541519 Other Computer Related Services	$9,553,882	0.2%	Rank history: #16 in FY2021, #34 in FY2022, #50 in FY2023 and #57 in FY2024; down 13 since FY2024.
71	MSM Technology LLC Top NAICS codes 541512 Computer Systems Design Services	$9,455,514	0.2%	Rank history: not on the FY2021 list, #62 in FY2022, #41 in FY2023 and #46 in FY2024; down 25 since FY2024.
72	Optimal Solutions Inc. Top NAICS codes 541519 Other Computer Related Services	$9,388,400	0.2%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2024; up 12 since FY2024.
73	Four LLC Top NAICS codes 541519 Other Computer Related Services 513210 Software Publishers	$9,385,514	0.2%	Rank history: #76 in FY2021, #36 in FY2022, #28 in FY2023 and #20 in FY2024; down 53 since FY2024.
74	Fedtec LLC Top NAICS codes 541519 Other Computer Related Services	$8,782,905	0.2%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 24 since FY2024.
75	Open SAN Consulting LLC Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541512 Computer Systems Design Services	$8,748,727	0.2%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and #88 in FY2024; up 13 since FY2024.
76	Foxhole Technology LLC Top NAICS codes 611420 Computer Training	$8,597,591	0.2%	Rank history: #62 in FY2021, #74 in FY2022, #56 in FY2023 and #80 in FY2024; up 4 since FY2024.
77	Lumen Technologies, Inc. Through Level 3 Communications, LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517311 Wired Telecommunications Carriers 517111 Wired Telecommunications Carriers	$8,493,201	0.2%	Rank history: #9 in FY2021, #3 in FY2022, #3 in FY2023 and #11 in FY2024; down 66 since FY2024.
78	Colossal Contracting LLC Top NAICS codes 541519 Other Computer Related Services	$8,489,149	0.2%	Rank history: #30 in FY2021, #52 in FY2022, not on the FY2023 list and #58 in FY2024; down 20 since FY2024.
79	Planet Associates, Inc. Top NAICS codes 611420 Computer Training	$8,400,092	0.2%	Rank history: not on the FY2021–FY2024 lists; up 375 since FY2024.
80	DLT Solutions, LLC Top NAICS codes 541519 Other Computer Related Services 513210 Software Publishers 511210 Software Publishers	$8,345,996	0.2%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
81	Arrow Electronics, Inc. 2 awardees, including EC America, Inc. and Immixtechnology Inc. Top NAICS codes 443120 Computer and Software Stores 511210 Software Publishers 541519 Other Computer Related Services	$8,334,827	0.2%	Rank history: #26 in FY2021, not on the FY2022–FY2023 lists and #78 in FY2024; down 3 since FY2024.
82	Ryan Consulting Group Inc. Top NAICS codes 541512 Computer Systems Design Services	$8,325,106	0.2%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and #95 in FY2024; up 13 since FY2024.
83	Eagle Harbor Solutions LLC Top NAICS codes 541519 Other Computer Related Services 541511 Custom Computer Programming Services	$8,272,759	0.2%	Rank history: not on the FY2021–FY2024 lists; up 27 since FY2024.
84	Crest Security Assurance LLC Top NAICS codes 541519 Other Computer Related Services	$8,263,761	0.2%	Rank history: not on the FY2021–FY2024 lists; up 355 since FY2024.
85	Creative It Solutions LLC Top NAICS codes 541511 Custom Computer Programming Services	$8,143,969	0.2%	Rank history: #59 in FY2021, #63 in FY2022, #65 in FY2023 and #68 in FY2024; down 17 since FY2024.
86	M.c. Dean, Inc. Top NAICS codes 541330 Engineering Services 561210 Facilities Support Services	$7,948,287	0.2%	Rank history: not on the FY2021 list, #89 in FY2022 and not on the FY2023–FY2024 lists; up 153 since FY2024.
87	Appian Corporation Top NAICS codes 541512 Computer Systems Design Services	$7,827,571	0.2%	Rank history: #77 in FY2021, #79 in FY2022, #97 in FY2023 and #90 in FY2024; up 3 since FY2024.
88	Data Systems Analysts Inc. Top NAICS codes 541512 Computer Systems Design Services	$7,470,535	0.2%	Rank history: #99 in FY2021, #72 in FY2022, #95 in FY2023 and not on the FY2024 list; up 99 since FY2024.
89	Kpmg LLP Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$7,194,493	0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 5 since FY2024.
90	E.f. Kearney, Limited Through Kearney & Company, P.C. Top NAICS codes 541211 Offices of Certified Public Accountants	$7,068,918	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Defense Solutions Group LLC Top NAICS codes 541519 Other Computer Related Services	$7,058,797	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Kaiva Tech, LLC Top NAICS codes 541618 Other Management Consulting Services 541611 Administrative Management and General Management Consulting Services	$6,986,192	0.1%	Rank history: not on the FY2021–FY2024 lists; up 173 since FY2024.
93	Vae, Inc. Top NAICS codes 541519 Other Computer Related Services	$6,922,361	0.1%	Rank history: #11 in FY2021, #35 in FY2022, #11 in FY2023 and #44 in FY2024; down 49 since FY2024.
94	TM3 Solutions Inc. Top NAICS codes 541512 Computer Systems Design Services	$6,858,162	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; down 19 since FY2024.
95	Tapestry Technologies, Inc. Top NAICS codes 541519 Other Computer Related Services	$6,851,952	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Accelgov LLC Top NAICS codes 541519 Other Computer Related Services	$6,618,973	0.1%	Rank history: not on the FY2021–FY2024 lists; up 58 since FY2024.
97	Metrostar Systems, LLC Top NAICS codes 611420 Computer Training	$6,555,809	0.1%	Rank history: not on the FY2021 list, #84 in FY2022, not on the FY2023 list and #79 in FY2024; down 18 since FY2024.
98	Avantus Federal LLC Top NAICS codes 541330 Engineering Services	$6,542,044	0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and #74 in FY2024; down 24 since FY2024.
99	Federal Resources Corporation Top NAICS codes 541519 Other Computer Related Services	$6,518,245	0.1%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023 and not on the FY2024 list; up 177 since FY2024.
100	Cinteot Inc. Top NAICS codes 541511 Custom Computer Programming Services 561612 Security Guards and Patrol Services	$6,439,202	0.1%	Rank history: not on the FY2021–FY2024 lists; up 59 since FY2024.

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100 of 593 contractors listed here. See the rest on GovTribe.

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 $4.89 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 Defense Information Systems Agency contractors in FY2025?

1. Leidos Holdings, Inc. ($635M), 2. Booz Allen Hamilton Holding Corporation ($308M), 3. Space Exploration Technologies Corp. ($248M), 4. Lumen Technologies Government Solutions, Inc. ($162M), 5. General Dynamics Corporation ($154M), 6. Microsoft Corporation ($126M), 7. Science Applications International Corporation ($126M), 8. Peraton Inc. ($125M), 9. Iron Bow Technologies, LLC ($120M), 10. Carahsoft Technology Corp ($115M).

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