Top 100 Contractors in NAICS 541511: Custom Computer Programming Services, FY2025

Name: Top 100 Contractors in NAICS 541511: Custom Computer Programming Services, FY2025
Creator: GovTribe

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

The top 10 won 28% of FY2025 NAICS 541511 contract dollars

Contract obligations: $10,498,969,826 Net of deobligations, by contracts coded NAICS 541511
Contractors: 1,868 Parent companies with an obligation
Largest contractor: General Dynamics Corporation $663 million, 6.0% 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	General Dynamics Corporation 7 awardees, including General Dynamics Information Technology, Inc., Csra LLC and Iron Eaglex, Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$663,441,608	6.0%	Rank history: #1 in FY2021, #2 in FY2022, #2 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Booz Allen Hamilton Holding Corporation 5 awardees, including Booz Allen Hamilton Inc., Thunderyard Liberty JV LLC and Ultra Electronics Advanced Tactical Systems Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) Treasury (Department of the Treasury)	$603,966,005	5.5%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Lockheed Martin Corporation 7 awardees Top agencies MDA (DOD Missile Defense Agency) OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$398,808,484	3.6%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	International Business Machines Corporation 2 awardees Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) SSA (Social Security Administration)	$347,034,273	3.1%	Rank history: #9 in FY2021, #10 in FY2022, #6 in FY2023 and #4 in FY2024; unchanged since FY2024.
5	CACI International Inc. 5 awardees, including Caci, Inc. - Federal and Caci-Iss, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$205,047,813	1.9%	Rank history: #4 in FY2021, #5 in FY2022, #4 in FY2023 and #29 in FY2024; up 24 since FY2024.
6	Carahsoft Technology Corp Top agencies Army (Department of the Army) DOT (Department of Transportation) USAF (Department of the Air Force)	$192,971,054	1.7%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #8 in FY2024; up 2 since FY2024.
7	Securigence LLC Top agencies DARPA (Defense Advanced Research Projects Agency) WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$187,192,620	1.7%	Rank history: #31 in FY2021, #13 in FY2022, #16 in FY2023 and #9 in FY2024; up 2 since FY2024.
8	Northrop Grumman Corporation 14 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$183,550,494	1.7%	Rank history: #7 in FY2021, #6 in FY2022, #5 in FY2023 and #5 in FY2024; down 3 since FY2024.
9	Accenture Federal Services LLC 2 awardees, including Cognosante MVH LLC Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$172,443,048	1.6%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; up 3 since FY2024.
10	Softrams LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DODEA (Department of Defense Education Activity)	$167,382,110	1.5%	Rank history: #24 in FY2021, #23 in FY2022, #18 in FY2023 and #11 in FY2024; up 1 since FY2024.
11	Quantum Management, LLC Top agencies VA (Department of Veterans Affairs)	$162,654,715	1.5%	Rank history: not on the FY2021–FY2024 lists; up 349 since FY2024.
12	Dev Technology Group Inc. Top agencies DHS (Department of Homeland Security) CFTC (Commodity Futures Trading Commission)	$159,903,864	1.4%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; up 35 since FY2024.
13	Peraton Inc. 2 awardees Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) Treasury (Department of the Treasury)	$139,339,988	1.3%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; up 2 since FY2024.
14	Arctic Slope Regional Corporation 7 awardees, including Agile Decision Sciences, LLC, Arctic Slope Mission Services LLC and Asrc Federal Agile Management LLC Top agencies DOJ (Department of Justice) Army (Department of the Army) USDA (Department of Agriculture)	$124,570,652	1.1%	Rank history: not on the FY2021–FY2024 lists; up 219 since FY2024.
15	RTX Corporation 15 awardees, including Raytheon Company, Solipsys Corporation and RTX BBN Technologies, Inc. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) USAF (Department of the Air Force)	$121,189,904	1.1%	Rank history: #11 in FY2021, #12 in FY2022, #14 in FY2023 and #27 in FY2024; up 12 since FY2024.
16	L3Harris Technologies, Inc. 7 awardees, including L3 Technologies, Inc., L3Harris Linchpin Labs, Inc. and L3Harris Forcex, Inc. Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) Navy (Department of the Navy)	$104,732,381	0.9%	Rank history: #12 in FY2021, #19 in FY2022, #8 in FY2023 and #6 in FY2024; down 10 since FY2024.
17	Index Analytics LLC Top agencies HHS (Department of Health and Human Services)	$98,360,410	0.9%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and #31 in FY2024; up 14 since FY2024.
18	Science Applications International Corporation Top agencies Commerce (Department of Commerce) Treasury (Department of the Treasury) HHS (Department of Health and Human Services)	$94,348,615	0.9%	Rank history: #28 in FY2021, #20 in FY2022, #23 in FY2023 and #23 in FY2024; up 5 since FY2024.
19	Huntington Ingalls Industries, Inc. 3 awardees, including Enlighten It Consulting LLC and HII Mission Technologies Corp Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) DCSA (Defense Counterintelligence and Security Agency)	$89,407,756	0.8%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; up 16 since FY2024.
20	Guidehouse Inc. 5 awardees, including Peraton Technology Services Inc. and Guidehouse Digital LLC Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) Treasury (Department of the Treasury)	$88,636,090	0.8%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; down 1 since FY2024.
21	Spatial Front Inc Top agencies USDA (Department of Agriculture) DOT (Department of Transportation) Commerce (Department of Commerce)	$88,401,244	0.8%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and #10 in FY2024; down 11 since FY2024.
22	Maveris LLC Top agencies VA (Department of Veterans Affairs)	$86,843,172	0.8%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #22 in FY2024; unchanged since FY2024.
23	Nava PBC Top agencies HHS (Department of Health and Human Services) SEC (Securities and Exchange Commission) OPM (Office of Personnel Management)	$86,682,504	0.8%	Rank history: #48 in FY2021, #54 in FY2022, #45 in FY2023 and #25 in FY2024; up 2 since FY2024.
24	Sapient Government Services Inc. 2 awardees Top agencies HHS (Department of Health and Human Services) CPSC (Consumer Product Safety Commission)	$77,602,766	0.7%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; up 2 since FY2024.
25	Oddball, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) SEC (Securities and Exchange Commission)	$75,407,770	0.7%	Rank history: #44 in FY2021, #39 in FY2022, #32 in FY2023 and #20 in FY2024; down 5 since FY2024.
26	Palantir Technologies Inc. Through Palantir USG Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$74,730,750	0.7%	Rank history: not on the FY2021–FY2024 lists; up 288 since FY2024.
27	Clarity Innovations LLC 2 awardees Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$72,886,230	0.7%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023 and #34 in FY2024; up 7 since FY2024.
28	Omni Fed LLC Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) DCSA (Defense Counterintelligence and Security Agency)	$68,100,503	0.6%	Rank history: #73 in FY2021, #29 in FY2022, #26 in FY2023 and #24 in FY2024; down 4 since FY2024.
29	Sabel Systems Technology Solutions, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$68,013,791	0.6%	Rank history: #30 in FY2021, #33 in FY2022, #21 in FY2023 and #32 in FY2024; up 3 since FY2024.
30	NTT Data Federal Services Inc. 2 awardees, including Natuvion Americas, Inc. Top agencies USAID (US Agency for International Development) DOJ (Department of Justice) DHS (Department of Homeland Security)	$67,689,850	0.6%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; down 16 since FY2024.
31	Salient Crgt, Inc. Top agencies HUD (Department of Housing and Urban Development)	$67,101,597	0.6%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2024; up 49 since FY2024.
32	Raft LLC Top agencies USAF (Department of the Air Force) CFPB (Consumer Financial Protection Bureau) USCYBERCOM (Department of Defense Cyber Command)	$63,193,824	0.6%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023 and #16 in FY2024; down 16 since FY2024.
33	Skylight Inc. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) NARA (National Archives and Records Administration)	$61,063,969	0.6%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; up 7 since FY2024.
34	Rei Systems, Inc. Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) NASA (National Aeronautics and Space Administration)	$58,285,205	0.5%	Rank history: #23 in FY2021, not on the FY2022–FY2023 lists and #28 in FY2024; down 6 since FY2024.
35	Management Solutions LLC Top agencies DOE (Department of Energy) Army (Department of the Army)	$50,176,737	0.5%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2024; up 49 since FY2024.
36	Black Canyon Consulting LLC Top agencies HHS (Department of Health and Human Services)	$49,696,015	0.5%	Rank history: not on the FY2021 list, #100 in FY2022, #44 in FY2023 and #39 in FY2024; up 3 since FY2024.
37	CGI Federal Inc. 2 awardees, including Sehlke Consulting LLC Top agencies Navy (Department of the Navy) DOI (Department of the Interior) USAF (Department of the Air Force)	$46,241,009	0.4%	Rank history: not on the FY2021–FY2024 lists; up 87 since FY2024.
38	Absolute Strategic Technologies, LLC Top agencies USAF (Department of the Air Force) DFAS (Defense Finance and Accounting Service)	$45,726,380	0.4%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and #37 in FY2024; down 1 since FY2024.
39	Obsidian Global, LLC Top agencies USAF (Department of the Air Force)	$45,155,191	0.4%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2024; up 35 since FY2024.
40	Dynamo Technologies, LLC Top agencies USDA (Department of Agriculture) CFPB (Consumer Financial Protection Bureau) DOI (Department of the Interior)	$44,049,320	0.4%	Rank history: not on the FY2021 list, #46 in FY2022, #36 in FY2023 and #30 in FY2024; down 10 since FY2024.
41	Utah State University Space Dynamics Laboratory Top agencies USAF (Department of the Air Force)	$44,008,251	0.4%	Rank history: not on the FY2021–FY2024 lists; up 70 since FY2024.
42	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. and Varec Inc. Top agencies NRC (Nuclear Regulatory Commission) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$43,325,203	0.4%	Rank history: #6 in FY2021, #8 in FY2022, #7 in FY2023 and #21 in FY2024; down 21 since FY2024.
43	Flexion Inc. Top agencies HHS (Department of Health and Human Services) GSA (General Services Administration) DOJ (Department of Justice)	$42,027,831	0.4%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and #48 in FY2024; up 5 since FY2024.
44	Concept Solutions LLC Top agencies DOT (Department of Transportation)	$40,332,427	0.4%	Rank history: #85 in FY2021, #67 in FY2022, #41 in FY2023 and #43 in FY2024; down 1 since FY2024.
45	Idera Inc. Through Precise Software Solutions, Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) Treasury (Department of the Treasury)	$39,065,830	0.4%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 10 since FY2024.
46	Planned Systems International Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$38,961,921	0.4%	Rank history: #18 in FY2021, #26 in FY2022, #31 in FY2023 and #45 in FY2024; down 1 since FY2024.
47	ICR Inc Top agencies WHS (DOD Washington Headquarters Service) Navy (Department of the Navy) USAF (Department of the Air Force)	$38,199,529	0.3%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and #66 in FY2024; up 19 since FY2024.
48	Halvik LLC Top agencies DOT (Department of Transportation) Commerce (Department of Commerce)	$38,147,482	0.3%	Rank history: #58 in FY2021, #45 in FY2022, #56 in FY2023 and #57 in FY2024; up 9 since FY2024.
49	Vista Innovative Solutions, LLC Top agencies Army (Department of the Army)	$38,047,640	0.3%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2024; up 16 since FY2024.
50	Parsons Corporation 3 awardees, including Parsons Government Services Inc., Xator LLC and Chesapeake Technology International, Corp. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$37,095,265	0.3%	Rank history: #14 in FY2021, #36 in FY2022, #55 in FY2023 and #71 in FY2024; up 21 since FY2024.
51	Expansia Group LLC Top agencies USAF (Department of the Air Force)	$36,435,836	0.3%	Rank history: not on the FY2021–FY2024 lists; up 67 since FY2024.
52	Seed Innovations, LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) DHRA (Defense Human Resources Activity)	$33,788,868	0.3%	Rank history: not on the FY2021 list, #43 in FY2022, #71 in FY2023 and #61 in FY2024; up 9 since FY2024.
53	Strongbridge LLC Top agencies DOT (Department of Transportation) DOL (Department of Labor)	$33,383,256	0.3%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #54 in FY2024; up 1 since FY2024.
54	Deloitte 2 awardees, including Deloitte & Touche LLP and Deloitte Consulting LLP Top agencies Navy (Department of the Navy) OPM (Office of Personnel Management) ED (Department of Education)	$32,878,109	0.3%	Rank history: not on the FY2021–FY2024 lists; up 47 since FY2024.
55	Creative Systems and Consulting L.L.C. Top agencies Treasury (Department of the Treasury) USDA (Department of Agriculture)	$32,153,747	0.3%	Rank history: #20 in FY2021, #99 in FY2022, not on the FY2023 list and #41 in FY2024; down 14 since FY2024.
56	T and T Consulting Services Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$31,901,975	0.3%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 26 since FY2024.
57	Decilog, Inc. Top agencies Army (Department of the Army)	$31,819,669	0.3%	Rank history: not on the FY2021 list, #49 in FY2022, #58 in FY2023 and #73 in FY2024; up 16 since FY2024.
58	A-Tek, Inc. Top agencies HHS (Department of Health and Human Services)	$31,468,571	0.3%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and #59 in FY2024; up 1 since FY2024.
59	ManTech International Corporation 2 awardees, including Mantech Advanced Systems International, Inc. and Unison Software Inc. Top agencies Commerce (Department of Commerce) DOE (Department of Energy) DECA (Defense Commissary Agency)	$30,455,653	0.3%	Rank history: not on the FY2021–FY2024 lists; up 139 since FY2024.
60	Igniteaction LLC Top agencies Commerce (Department of Commerce) Treasury (Department of the Treasury)	$30,298,453	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
61	Semanticbits LLC 2 awardees, including ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) DHS (Department of Homeland Security)	$29,489,010	0.3%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; down 19 since FY2024.
62	Integrated Data Services, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DSCA (Defense Security Cooperation Agency)	$26,824,904	0.2%	Rank history: not on the FY2021 list, #56 in FY2022, #46 in FY2023 and not on the FY2024 list; up 318 since FY2024.
63	Sealing Technologies LLC Top agencies Navy (Department of the Navy)	$26,475,795	0.2%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; down 5 since FY2024.
64	Riva Solutions Inc Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) USDA (Department of Agriculture)	$26,462,714	0.2%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 4 since FY2024.
65	Compass Point LLC Top agencies USSOCOM (United States Special Operations Command) DISA (Defense Information Systems Agency) DOJ (Department of Justice)	$25,565,197	0.2%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and #69 in FY2024; up 4 since FY2024.
66	Octo Metric LLC Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services)	$25,464,164	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 11 since FY2024.
67	Nuvitek LLC Top agencies DOL (Department of Labor) USDA (Department of Agriculture) DOT (Department of Transportation)	$24,806,073	0.2%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; down 7 since FY2024.
68	Accelgov LLC Top agencies NARA (National Archives and Records Administration) Treasury (Department of the Treasury) Army (Department of the Army)	$24,375,994	0.2%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 23 since FY2024.
69	Globaltekforcecom Inc. Top agencies HHS (Department of Health and Human Services)	$24,139,733	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
70	Bridgephase LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) USCYBERCOM (Department of Defense Cyber Command)	$24,005,245	0.2%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; up 13 since FY2024.
71	Concept Plus, LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$23,851,500	0.2%	Rank history: not on the FY2021–FY2024 lists; up 76 since FY2024.
72	Ondaro LLC Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force) Treasury (Department of the Treasury)	$23,787,527	0.2%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; up 3 since FY2024.
73	Sky Solutions LLC Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$23,193,269	0.2%	Rank history: not on the FY2021–FY2024 lists; up 55 since FY2024.
74	Weems Design Studio, Inc. Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$22,954,640	0.2%	Rank history: not on the FY2021–FY2024 lists; up 43 since FY2024.
75	Sprezzatura Management Consulting, LLC Top agencies VA (Department of Veterans Affairs)	$22,606,376	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
76	UnitedHealth Group Incorporated 2 awardees, including Picis Clinical Solutions, Inc. and Optumserve Technology Services, Inc. Top agencies VA (Department of Veterans Affairs) ED (Department of Education)	$22,579,734	0.2%	Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
77	Directviz Solutions, LLC Top agencies NSF (National Science Foundation)	$22,532,733	0.2%	Rank history: #39 in FY2021 and not on the FY2022–FY2024 lists; up 95 since FY2024.
78	Sphera Solutions, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$22,436,600	0.2%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2024; up 12 since FY2024.
79	Dynanet Corporation Top agencies HHS (Department of Health and Human Services) DCSA (Defense Counterintelligence and Security Agency)	$22,397,025	0.2%	Rank history: #69 in FY2021, not on the FY2022 list, #84 in FY2023 and not on the FY2024 list; up 54 since FY2024.
80	Pluribus Digital, Inc. Top agencies DHS (Department of Homeland Security)	$22,382,208	0.2%	Rank history: #59 in FY2021, #52 in FY2022, #63 in FY2023 and #96 in FY2024; up 16 since FY2024.
81	ZEN Strategics LLC Top agencies ED (Department of Education) DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$22,193,211	0.2%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and #49 in FY2024; down 32 since FY2024.
82	Yudrio Inc Top agencies DOJ (Department of Justice) Treasury (Department of the Treasury) NTSB (National Transportation Safety Board)	$22,127,529	0.2%	Rank history: not on the FY2021–FY2024 lists; up 80 since FY2024.
83	Ampcus Inc. Top agencies HUD (Department of Housing and Urban Development)	$22,105,801	0.2%	Rank history: not on the FY2021–FY2024 lists; up 114 since FY2024.
84	Attainx Inc. Top agencies Commerce (Department of Commerce) DOE (Department of Energy) USDA (Department of Agriculture)	$22,086,328	0.2%	Rank history: not on the FY2021–FY2024 lists; up 60 since FY2024.
85	Lynker Corporation Top agencies Commerce (Department of Commerce) NSF (National Science Foundation) EPA (Environmental Protection Agency)	$22,081,557	0.2%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; up 1 since FY2024.
86	Easy Dynamics Corporation Top agencies USDA (Department of Agriculture) ED (Department of Education) CFPB (Consumer Financial Protection Bureau)	$22,040,620	0.2%	Rank history: not on the FY2021 list, #81 in FY2022, #75 in FY2023 and #85 in FY2024; down 1 since FY2024.
87	Silosmashers, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) EPA (Environmental Protection Agency)	$21,739,224	0.2%	Rank history: not on the FY2021 list, #73 in FY2022, #74 in FY2023 and not on the FY2024 list; up 61 since FY2024.
88	Reli Group Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$21,736,781	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
89	Effectual Public Sector Inc. Top agencies DOJ (Department of Justice) WHS (DOD Washington Headquarters Service) Army (Department of the Army)	$21,649,481	0.2%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and not on the FY2024 list; returned.
90	Rise8 Inc. Top agencies USAF (Department of the Air Force) USCYBERCOM (Department of Defense Cyber Command)	$21,628,656	0.2%	Rank history: not on the FY2021–FY2024 lists; up 88 since FY2024.
91	Koniag Data Solutions LLC Top agencies DOS (Department of State) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$21,434,189	0.2%	Rank history: not on the FY2021–FY2024 lists; up 95 since FY2024.
92	Vidoori Inc. Top agencies Commerce (Department of Commerce)	$21,043,693	0.2%	Rank history: not on the FY2021–FY2024 lists; up 62 since FY2024.
93	Fusion Technology LLC Top agencies DOJ (Department of Justice) USAF (Department of the Air Force)	$20,876,951	0.2%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; down 21 since FY2024.
94	Humanit Solutions LLC Top agencies HHS (Department of Health and Human Services) DOD (Department of Defense)	$20,839,621	0.2%	Rank history: #83 in FY2021, #48 in FY2022, #87 in FY2023 and not on the FY2024 list; up 41 since FY2024.
95	Geost, LLC Top agencies USAF (Department of the Air Force)	$20,641,317	0.2%	Rank history: not on the FY2021 list, #47 in FY2022 and not on the FY2023–FY2024 lists; up 284 since FY2024.
96	Quiet Professionals, LLC Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force) Army (Department of the Army)	$20,628,925	0.2%	Rank history: #89 in FY2021, not on the FY2022–FY2023 lists and #99 in FY2024; up 3 since FY2024.
97	Camgian Corporation Top agencies Army (Department of the Army)	$20,625,150	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
98	Cybermedia Technologies LLC Top agencies Treasury (Department of the Treasury) OPM (Office of Personnel Management) DHS (Department of Homeland Security)	$19,875,969	0.2%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; down 45 since FY2024.
99	Axiom Resource Management, Inc. Top agencies DHA (Defense Health Agency) USDA (Department of Agriculture)	$19,839,322	0.2%	Rank history: not on the FY2021–FY2024 lists; up 6 since FY2024.
100	Great Hill Solutions, LLC Top agencies OSD (Office of the Secretary of Defense) USSOCOM (United States Special Operations Command)	$19,662,903	0.2%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 1,868 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 $11 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 541511 contractors in FY2025?

1. General Dynamics Corporation ($663M), 2. Booz Allen Hamilton Holding Corporation ($604M), 3. Lockheed Martin Corporation ($399M), 4. International Business Machines Corporation ($347M), 5. CACI International Inc. ($205M), 6. Carahsoft Technology Corp ($193M), 7. Securigence LLC ($187M), 8. Northrop Grumman Corporation ($184M), 9. Accenture Federal Services LLC ($172M), 10. Softrams LLC ($167M).

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