Top 100 Contractors in NAICS 811: Repair and Maintenance, FY2025

Name: Top 100 Contractors in NAICS 811: Repair and Maintenance, FY2025
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 45% of FY2025 NAICS 811 contract dollars

Contract obligations: $4,612,747,361 Net of deobligations, by contracts coded NAICS 811 or a code under it
Contractors: 5,368 Parent companies with an obligation
Largest contractor: RTX Corporation $541 million, 10.9% of obligations
Data as of: Oct 23, 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	RTX Corporation 22 awardees, including Raytheon Company, Collins Elbit Vision Systems, LLC and Hamilton Sundstrand Corporation Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$541,118,085	10.9%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #10 in FY2024; up 9 since FY2024.
2	Amentum Holdings, Inc. 6 awardees, including Amentum Services, Inc., Amentum Technology, Inc. and Amentum Design and Facility Management Top agencies Army (Department of the Army) GSA (General Services Administration)	$271,708,396	5.5%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 51 since FY2024.
3	Techflow, Inc. Top agencies DHS (Department of Homeland Security)	$244,284,403	4.9%	Rank history: #3 in FY2021, #3 in FY2022, #4 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. and Leidos Security Detection & Automation, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) CSOSA (Court Services and Offender Supervision Agency)	$241,250,627	4.8%	Rank history: #5 in FY2021, #5 in FY2022, #7 in FY2023 and #7 in FY2024; up 3 since FY2024.
5	General Dynamics Corporation 10 awardees, including General Dynamics Land Systems Inc., General Dynamics Land Systems Customer Service & Support Company and General Dynamics Information Technology, Inc. Top agencies Army (Department of the Army) DOT (Department of Transportation) USAF (Department of the Air Force)	$229,637,250	4.6%	Rank history: #6 in FY2021, #4 in FY2022, #3 in FY2023 and #1 in FY2024; down 4 since FY2024.
6	Lockheed Martin Corporation 10 awardees, including Lockheed Martin Coherent Technologies, Inc. and Sikorsky Aircraft Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$209,037,299	4.2%	Rank history: #12 in FY2021, #6 in FY2022, #8 in FY2023 and #6 in FY2024; unchanged since FY2024.
7	Northrop Grumman Systems Corporation 15 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOT (Department of Transportation)	$154,276,073	3.1%	Rank history: #2 in FY2021, #2 in FY2022, #6 in FY2023 and #8 in FY2024; up 1 since FY2024.
8	The Boeing Company 5 awardees, including Digital Receiver Technology, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$153,891,116	3.1%	Rank history: #8 in FY2021, #7 in FY2022, #10 in FY2023 and #9 in FY2024; up 1 since FY2024.
9	KBR Wyle Services LLC 3 awardees, including KBR Services, LLC Top agencies Navy (Department of the Navy) DOI (Department of the Interior) USAF (Department of the Air Force)	$112,043,950	2.3%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; up 2 since FY2024.
10	V2X, Inc. 2 awardees, including V2X Systems LLC and Vertex Modernization and Sustainment LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$102,569,911	2.1%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; up 6 since FY2024.
11	Huntington Ingalls Industries, Inc. 3 awardees, including Huntington Ingalls Inc., HII Mission Technologies Corp and HII Fleet Support Group LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$100,822,466	2.0%	Rank history: #11 in FY2021, #11 in FY2022, #25 in FY2023 and #20 in FY2024; up 9 since FY2024.
12	Motorola Solutions, Inc. 3 awardees, including Silvus Technologies, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$82,640,415	1.7%	Rank history: #16 in FY2021, #15 in FY2022, #12 in FY2023 and #28 in FY2024; up 16 since FY2024.
13	Cubic Defense Applications Inc. Top agencies USAF (Department of the Air Force)	$76,008,790	1.5%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; up 14 since FY2024.
14	Rapiscan Systems Inc. Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) DOD (Department of Defense)	$55,290,559	1.1%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 10 since FY2024.
15	L3Harris Technologies, Inc. 26 awardees, including L3 Technologies, Inc., L3Harris Maritime Services Inc. and Calzoni S.R.L. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$42,638,181	0.9%	Rank history: #10 in FY2021, #12 in FY2022, #11 in FY2023 and #12 in FY2024; down 3 since FY2024.
16	Raytheon Company Top agencies MDA (DOD Missile Defense Agency)	$42,108,416	0.8%	Rank history: #62 in FY2021, not on the FY2022–FY2023 lists and #5 in FY2024; down 11 since FY2024.
17	Agiliti Health Inc. 2 awardees Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$41,383,253	0.8%	Rank history: #13 in FY2021, #8 in FY2022, #5 in FY2023 and #4 in FY2024; down 13 since FY2024.
18	Peraton Inc. 2 awardees, including Knight Point Systems, LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$41,015,583	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
19	Canadian Commercial Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy)	$40,337,587	0.8%	Rank history: not on the FY2021–FY2024 lists; up 242 since FY2024.
20	Atec Inc. 2 awardees, including Vital Link, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$34,310,184	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
21	Sonova Holding AG Through Sonova USA Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$31,652,922	0.6%	Rank history: #18 in FY2021, #22 in FY2022, #21 in FY2023 and #19 in FY2024; down 2 since FY2024.
22	Siemens Corporation 7 awardees, including Varian Medical Systems, Inc., Varex Imaging Corp and Siemens Medical Solutions Usa, Inc. Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) DHA (Defense Health Agency)	$31,203,967	0.6%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 22 since FY2024.
23	Calista Corp Through Yulista Support Services LLC Top agencies USAF (Department of the Air Force)	$30,177,099	0.6%	Rank history: #24 in FY2021, #32 in FY2022, #36 in FY2023 and not on the FY2024 list; up 193 since FY2024.
24	Cartridge Technologies, LLC Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Treasury (Department of the Treasury)	$28,737,229	0.6%	Rank history: #17 in FY2021, #14 in FY2022, #16 in FY2023 and #18 in FY2024; down 6 since FY2024.
25	Becton, Dickinson and Co 9 awardees, including Carefusion Solutions, LLC, Parata Systems LLC and Carefusion 2200 Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$26,851,920	0.5%	Rank history: #47 in FY2021, #53 in FY2022, #42 in FY2023 and #30 in FY2024; up 5 since FY2024.
26	Tusas Motor Sanayii A.S. Top agencies Navy (Department of the Navy)	$26,275,189	0.5%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 47 since FY2024.
27	General Electric Company 16 awardees, including GE Aviation Systems LLC, GE Precision Healthcare LLC and GE Medical Systems Information Technologies, Inc. Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$26,050,031	0.5%	Rank history: #14 in FY2021, #13 in FY2022, #15 in FY2023 and #21 in FY2024; down 6 since FY2024.
28	Goldbelt, Incorporated 3 awardees, including Goldbelt Frontier, LLC, Goldbelt C6, LLC and Goldbelt Apex, LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$23,372,946	0.5%	Rank history: #21 in FY2021, #36 in FY2022, #44 in FY2023 and #48 in FY2024; up 20 since FY2024.
29	Sandhills Utility Services, LLC Top agencies Army (Department of the Army)	$23,193,246	0.5%	Rank history: #20 in FY2021, #26 in FY2022, #23 in FY2023 and #26 in FY2024; down 3 since FY2024.
30	JC Technology Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) HHS (Department of Health and Human Services)	$20,708,276	0.4%	Rank history: #34 in FY2021, #17 in FY2022, #19 in FY2023 and #14 in FY2024; down 16 since FY2024.
31	Teledyne Flir Unmanned Ground Systems Inc 17 awardees, including Teledyne Defense Electronics, LLC, Teledyne Flir Defense, LLC and Teledyne Risi, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOT (Department of Transportation)	$20,466,529	0.4%	Rank history: #53 in FY2021, #43 in FY2022, #48 in FY2023 and not on the FY2024 list; up 100 since FY2024.
32	BAE Systems 13 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Controls Inc. and BAE Systems (Operations) Limited Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$20,406,534	0.4%	Rank history: #40 in FY2021, #46 in FY2022, #22 in FY2023 and #35 in FY2024; up 3 since FY2024.
33	Deloitte Through Deloitte Consulting LLP Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) USAF (Department of the Air Force)	$17,927,145	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
34	Trillamed LLC Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$17,921,211	0.4%	Rank history: not on the FY2021–FY2024 lists; up 183 since FY2024.
35	Thermo Fisher Scientific Inc. 9 awardees, including Thermo Electron North America LLC, FEI Company and Life Technologies Corporation Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) Commerce (Department of Commerce)	$17,834,293	0.4%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and #33 in FY2024; down 2 since FY2024.
36	CACI International Inc. 2 awardees, including Caci, Inc. - Federal and Caci Idt, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$17,714,533	0.4%	Rank history: not on the FY2021 list, #97 in FY2022, #82 in FY2023 and #51 in FY2024; up 15 since FY2024.
37	Honeywell International Inc. 12 awardees, including Honeywell Building Solutions SES Corp and Honeywell Analytics Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration)	$17,682,322	0.4%	Rank history: #30 in FY2021, #20 in FY2022, #32 in FY2023 and not on the FY2024 list; up 84 since FY2024.
38	Pergravis LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$17,508,736	0.4%	Rank history: #29 in FY2021, #30 in FY2022, #30 in FY2023 and #36 in FY2024; down 2 since FY2024.
39	Caes Systems LLC Top agencies Navy (Department of the Navy)	$17,503,749	0.4%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; unchanged since FY2024.
40	Apro International, Inc. Top agencies USAF (Department of the Air Force)	$17,145,296	0.3%	Rank history: #31 in FY2021, #41 in FY2022, #34 in FY2023 and #31 in FY2024; down 9 since FY2024.
41	Danaher Corporation 13 awardees, including Cepheid, Leica Microsystems Inc. and Beckman Coulter, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$16,758,170	0.3%	Rank history: #33 in FY2021, #38 in FY2022, #37 in FY2023 and #38 in FY2024; down 3 since FY2024.
42	Smiths Detection Inc. Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) USDA (Department of Agriculture)	$16,727,057	0.3%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; up 1 since FY2024.
43	The Chenega Corporation 3 awardees, including Chenega It Enterprise Services, LLC, Chenega Base & Logistics Services LLC and Chenega Worldwide Support, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) USAF (Department of the Air Force)	$15,983,383	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
44	Eaton Corporation Public Limited Company 7 awardees, including Eaton Corporation, Mission Systems Davenport Inc. and Eaton Aerospace LLC Top agencies DOT (Department of Transportation) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$15,761,885	0.3%	Rank history: #76 in FY2021, #54 in FY2022, #40 in FY2023 and not on the FY2024 list; up 183 since FY2024.
45	Phillips Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$15,427,904	0.3%	Rank history: not on the FY2021–FY2024 lists; up 101 since FY2024.
46	Steris Corporation 2 awardees, including Steris Instrument Management Services, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) USDA (Department of Agriculture)	$15,233,130	0.3%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 9 since FY2024.
47	Elbit Systems of America LLC Through Elbitamerica, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$13,981,449	0.3%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; up 13 since FY2024.
48	Interfuze Corporation Top agencies Army (Department of the Army)	$13,335,292	0.3%	Rank history: not on the FY2021 list, #64 in FY2022, #46 in FY2023 and #40 in FY2024; down 8 since FY2024.
49	L3 Technologies, Inc. Top agencies USAF (Department of the Air Force)	$12,501,829	0.3%	Rank history: not on the FY2021–FY2024 lists; up 344 since FY2024.
50	Olympus America Inc. 2 awardees, including Olympus Latin America, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$12,419,409	0.2%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; up 25 since FY2024.
51	Thomas Instrument, Incorporated Top agencies USAF (Department of the Air Force)	$11,760,818	0.2%	Rank history: not on the FY2021 list, #69 in FY2022 and not on the FY2023–FY2024 lists; up 65 since FY2024.
52	E3 Diagnostics Inc. 5 awardees, including Oticon, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$11,379,060	0.2%	Rank history: #63 in FY2021, #58 in FY2022, #52 in FY2023 and not on the FY2024 list; returned.
53	Cherokee Nation 3 awardees, including Cherokee Nation Armored Solutions, LLC, Cherokee Nation System Solutions LLC and Cherokee Nation Aerospace and Defense, L.L.C. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$11,137,008	0.2%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2024; down 7 since FY2024.
54	PC Mechanical, Inc. Top agencies Navy (Department of the Navy)	$11,033,542	0.2%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and #64 in FY2024; up 10 since FY2024.
55	RWG Repair & Overhauls USA Inc. Top agencies Navy (Department of the Navy)	$9,879,709	0.2%	Rank history: not on the FY2021–FY2024 lists; up 124 since FY2024.
56	American Engineering Corporation Top agencies Navy (Department of the Navy) DODEA (Department of Defense Education Activity) Army (Department of the Army)	$9,652,169	0.2%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; down 14 since FY2024.
57	Integrated Procurement Technologies Top agencies USAF (Department of the Air Force)	$9,252,108	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
58	Mesotech International, Inc. Top agencies USAF (Department of the Air Force)	$8,534,622	0.2%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; down 11 since FY2024.
59	Mitomo Co., Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$8,202,453	0.2%	Rank history: not on the FY2021–FY2024 lists; up 61 since FY2024.
60	Bell and Howell, LLC 2 awardees Top agencies Treasury (Department of the Treasury) VA (Department of Veterans Affairs)	$7,893,678	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 17 since FY2024.
61	Al Rawabet Commercial Services & Contracting Co. W.L.L. Top agencies Army (Department of the Army)	$7,881,257	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, not on the FY2023 list and #76 in FY2024; up 15 since FY2024.
62	Merchants Automotive Group Inc. Top agencies DOJ (Department of Justice)	$7,852,344	0.2%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 1 since FY2024.
63	Laboratory Equipment Service, LLC Top agencies HHS (Department of Health and Human Services)	$7,842,950	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, #70 in FY2023 and #65 in FY2024; up 2 since FY2024.
64	Dongwon Construction Industries Co., Ltd. Top agencies Army (Department of the Army)	$7,739,388	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
65	Mechanical Resources Incorporated Top agencies Navy (Department of the Navy)	$7,663,496	0.2%	Rank history: #75 in FY2021, #62 in FY2022, not on the FY2023 list and #68 in FY2024; up 3 since FY2024.
66	Koninklijke Philips N.V. 7 awardees, including Philips North America LLC, Philips GMBH and Invivo Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$7,650,516	0.2%	Rank history: #92 in FY2021, #71 in FY2022, #64 in FY2023 and not on the FY2024 list; up 162 since FY2024.
67	Sidewinders LLC Top agencies DOI (Department of the Interior)	$7,492,139	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
68	Getinge USA Sales, LLC Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$7,480,810	0.2%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2024; up 12 since FY2024.
69	Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$7,222,050	0.1%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 28 since FY2024.
70	Credence Management Solutions Limited Liability Company Top agencies USAF (Department of the Air Force)	$7,077,226	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
71	Greenlight Group JV, LLC Top agencies Navy (Department of the Navy)	$7,010,806	0.1%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2024; up 7 since FY2024.
72	Hatalom Corp Top agencies Navy (Department of the Navy)	$6,958,180	0.1%	Rank history: #69 in FY2021, #56 in FY2022, #59 in FY2023 and #56 in FY2024; down 16 since FY2024.
73	General Motors Company Top agencies DHS (Department of Homeland Security)	$6,919,178	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Sustainment Technologies, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$6,629,563	0.1%	Rank history: #97 in FY2021, not on the FY2022 list, #88 in FY2023 and #74 in FY2024; unchanged since FY2024.
75	Centerpoint Energy, Inc. Through Energy Systems Group, LLC Top agencies Army (Department of the Army)	$6,524,217	0.1%	Rank history: #45 in FY2021, #73 in FY2022, #93 in FY2023 and not on the FY2024 list; up 247 since FY2024.
76	Agilent Technologies, Inc. 3 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army) DHA (Defense Health Agency)	$6,391,047	0.1%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2024; down 9 since FY2024.
77	Cummins Inc. 10 awardees, including Distribuidora Cummins De Panama S De RL Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$6,362,343	0.1%	Rank history: #93 in FY2021 and not on the FY2022–FY2024 lists; up 374 since FY2024.
78	GN US Holdings Inc Through GN Hearing Care Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$6,361,373	0.1%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2024; down 19 since FY2024.
79	Solution One Industries, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$6,361,190	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; down 8 since FY2024.
80	Stryker Corporation 7 awardees, including Stryker Sales, LLC, Howmedica Osteonics Corp and Stryker Communications Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$6,238,831	0.1%	Rank history: #56 in FY2021, #57 in FY2022, #57 in FY2023 and #66 in FY2024; down 14 since FY2024.
81	Craneworks, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$6,218,166	0.1%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023 list and #87 in FY2024; up 6 since FY2024.
82	Blackwood Associates, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) USITC (International Trade Commission)	$6,201,946	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
83	M.c. Dean, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$6,143,329	0.1%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; unchanged since FY2024.
84	International Service Contractors LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) USAF (Department of the Air Force)	$5,857,261	0.1%	Rank history: #90 in FY2021 and not on the FY2022–FY2024 lists; up 30 since FY2024.
85	Starkey Laboratories Inc. Top agencies VA (Department of Veterans Affairs)	$5,841,170	0.1%	Rank history: #49 in FY2021, #60 in FY2022, #41 in FY2023 and #54 in FY2024; down 31 since FY2024.
86	Adolf Lupp GMBH + Co. KG Through Lupp Facility Management GMBH Top agencies Army (Department of the Army)	$5,837,468	0.1%	Rank history: not on the FY2021 list, #59 in FY2022, #62 in FY2023 and not on the FY2024 list; up 15 since FY2024.
87	AGFA-GEVAERT 2 awardees, including Agfa Healthcare Corporation and Agfa US Corp Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Navy (Department of the Navy)	$5,822,154	0.1%	Rank history: not on the FY2021–FY2024 lists; up 109 since FY2024.
88	The Bionetics Corporation Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services)	$5,813,282	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and #86 in FY2024; down 2 since FY2024.
89	Rolls-Royce Corporation 3 awardees, including Rolls-Royce Solutions America Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,690,510	0.1%	Rank history: not on the FY2021–FY2024 lists; up 103 since FY2024.
90	Tunica-Biloxi J Star, LLC Top agencies Army (Department of the Army)	$5,609,975	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Constellis, LLC Through Centerra Integrated Services GMBH Top agencies Army (Department of the Army)	$5,410,689	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Alloy Crane & Machinery LLC Top agencies Navy (Department of the Navy)	$5,299,991	0.1%	Rank history: not on the FY2021–FY2024 lists; up 88 since FY2024.
93	Hologic, Inc. 2 awardees, including Hologic Sales and Service, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$5,239,300	0.1%	Rank history: not on the FY2021–FY2024 lists; up 96 since FY2024.
94	Refcon Services Inc. Top agencies Navy (Department of the Navy)	$5,184,045	0.1%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 2 since FY2024.
95	Utah State University Through Utah State University Space Dynamics Laboratory Top agencies USAF (Department of the Air Force)	$5,148,850	0.1%	Rank history: not on the FY2021 list, #31 in FY2022, #49 in FY2023 and not on the FY2024 list; returned.
96	Orbit Communication Systems, Inc. Top agencies USAF (Department of the Air Force)	$5,140,391	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Barragan Corp. International Top agencies Navy (Department of the Navy)	$5,108,604	0.1%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 3 since FY2024.
98	Alliance Worldwide Distributing LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) Army (Department of the Army)	$5,031,250	0.1%	Rank history: #82 in FY2021, #93 in FY2022, #91 in FY2023 and not on the FY2024 list; up 15 since FY2024.
99	JW Business Company Top agencies Army (Department of the Army)	$4,910,951	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	New Techno Team LLC Top agencies Army (Department of the Army)	$4,860,207	0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and not on the FY2024 list; returned.

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100 of 5,368 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 811

Code	Net obligations	Largest contractor
8112 Electronic and Precision Equipment Repair and Maintenance	$3,200,359,365	RTX Corporation
8113 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$769,611,624	KBR Wyle Services LLC
8111 Automotive Repair and Maintenance	$592,568,093	Amentum Holdings, Inc.
8114 Personal and Household Goods Repair and Maintenance	$50,208,279	Dongwon Construction Industries Co., Ltd.

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 $4.97 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 811 contractors in FY2025?

1. RTX Corporation ($541M), 2. Amentum Holdings, Inc. ($272M), 3. Techflow, Inc. ($244M), 4. Leidos Holdings, Inc. ($241M), 5. General Dynamics Corporation ($230M), 6. Lockheed Martin Corporation ($209M), 7. Northrop Grumman Systems Corporation ($154M), 8. The Boeing Company ($154M), 9. KBR Wyle Services LLC ($112M), 10. V2X, Inc. ($103M).

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