Top 100 Contractors in NAICS 811: Repair and Maintenance, Jul 2025–Jun 2026

Name: Top 100 Contractors in NAICS 811: Repair and Maintenance, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 46% of NAICS 811 contract dollars from July 2025 through June 2026

Contract obligations: $4,656,499,218 Net of deobligations, by contracts coded NAICS 811 or a code under it
Contractors: 4,910 Parent companies with an obligation
Largest contractor: RTX Corporation $417 million, 8.4% of obligations
Data as of: Oct 16, 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	RTX Corporation 39 awardees, including Raytheon Company, Collins Elbit Vision Systems, LLC and Data Link Solutions LLC Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$416,948,594	8.4%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #10 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. and Leidos Security Detection & Automation, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) CSOSA (Court Services and Offender Supervision Agency)	$406,102,773	8.2%	Rank history: #5 in FY2021, #5 in FY2022, #7 in FY2023, #7 in FY2024 and #4 in FY2025; up 3 since Jul 2024–Jun 2025.
3	Techflow, Inc. Top agencies DHS (Department of Homeland Security)	$329,115,250	6.6%	Rank history: #3 in FY2021, #3 in FY2022, #4 in FY2023, #3 in FY2024 and #3 in FY2025; up 8 since Jul 2024–Jun 2025.
4	General Dynamics Corporation 9 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) Navy (Department of the Navy)	$243,962,684	4.9%	Rank history: #6 in FY2021, #4 in FY2022, #3 in FY2023, #1 in FY2024 and #5 in FY2025; unchanged since Jul 2024–Jun 2025.
5	Lockheed Martin Corporation 8 awardees, including Lockheed Martin Global, Inc., Sikorsky Aircraft Corporation and Lockheed Martin Coherent Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOT (Department of Transportation)	$227,401,876	4.6%	Rank history: #12 in FY2021, #6 in FY2022, #8 in FY2023, #6 in FY2024 and #6 in FY2025; up 1 since Jul 2024–Jun 2025.
6	The Boeing Company 5 awardees, including Digital Receiver Technology, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DLA (Defense Logistics Agency)	$187,095,925	3.8%	Rank history: #8 in FY2021, #7 in FY2022, #10 in FY2023, #9 in FY2024 and #8 in FY2025; up 1 since Jul 2024–Jun 2025.
7	Northrop Grumman Systems Corporation 14 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOT (Department of Transportation)	$178,672,281	3.6%	Rank history: #2 in FY2021, #2 in FY2022, #6 in FY2023, #8 in FY2024 and #7 in FY2025; down 4 since Jul 2024–Jun 2025.
8	S & K Security Group LLC Top agencies DHS (Department of Homeland Security)	$114,653,121	2.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
9	Agiliti Health Inc Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$95,045,619	1.9%	Rank history: #13 in FY2021, #8 in FY2022, #5 in FY2023, #4 in FY2024 and #17 in FY2025; up 110 since Jul 2024–Jun 2025.
10	Huntington Ingalls Industries, Inc. 4 awardees, including Huntington Ingalls Inc., HII Fleet Support Group LLC and HII Mission Technologies Corp Top agencies Navy (Department of the Navy) Army (Department of the Army)	$90,670,694	1.8%	Rank history: #11 in FY2021, #11 in FY2022, #25 in FY2023, #20 in FY2024 and #11 in FY2025; up 5 since Jul 2024–Jun 2025.
11	Motorola Solutions, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$86,297,261	1.7%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #12 in FY2025; up 2 since Jul 2024–Jun 2025.
12	KBR Wyle Services LLC 3 awardees, including KBR Services, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOI (Department of the Interior)	$85,222,008	1.7%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #9 in FY2025; down 3 since Jul 2024–Jun 2025.
13	Amentum Holdings, Inc. 4 awardees, including Amentum Services, Inc., Amentum Technology, Inc. and Amentum Design and Facility Management Top agencies Army (Department of the Army)	$64,103,454	1.3%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #2 in FY2025; down 11 since Jul 2024–Jun 2025.
14	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)	$62,357,593	1.3%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #10 in FY2025; down 6 since Jul 2024–Jun 2025.
15	Rapiscan Systems Inc. Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) DOD (Department of Defense)	$57,000,574	1.1%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #14 in FY2025; down 3 since Jul 2024–Jun 2025.
16	L3Harris Technologies, Inc. 21 awardees, including L3 Technologies, Inc., L3Harris Maritime Services Inc. and L3Harris Maritime Power & Energy Solutions, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$52,013,419	1.0%	Rank history: #10 in FY2021, #12 in FY2022, #11 in FY2023, #12 in FY2024 and #15 in FY2025; down 2 since Jul 2024–Jun 2025.
17	Cubic Defense Applications Inc. Top agencies USAF (Department of the Air Force)	$50,615,841	1.0%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #13 in FY2025; down 1 since Jul 2024–Jun 2025.
18	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)	$39,786,814	0.8%	Rank history: #14 in FY2021, #13 in FY2022, #15 in FY2023, #21 in FY2024 and #27 in FY2025; up 12 since Jul 2024–Jun 2025.
19	Deloitte Through Deloitte Consulting LLP Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$39,592,523	0.8%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; up 104 since Jul 2024–Jun 2025.
20	Peraton Inc. 2 awardees, including Knight Point Systems, LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$36,004,071	0.7%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Jul 2024–Jun 2025.
21	Vital Link, Inc. Top agencies USAF (Department of the Air Force)	$34,069,453	0.7%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #20 in FY2025; unchanged since Jul 2024–Jun 2025.
22	Siemens Corporation 3 awardees, including Varian Medical Systems, Inc., Siemens Medical Solutions Usa, Inc. and Siemens Healthcare Diagnostics Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$31,887,333	0.6%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #25 in FY2025; up 6 since Jul 2024–Jun 2025.
23	Sandhills Utility Services, LLC Top agencies Army (Department of the Army)	$29,954,432	0.6%	Rank history: #20 in FY2021, #26 in FY2022, #23 in FY2023, #26 in FY2024 and #28 in FY2025; up 14 since Jul 2024–Jun 2025.
24	Becton, Dickinson and Co 9 awardees, including Carefusion Solutions, LLC, Parata Systems LLC and GSL Solutions Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$27,372,225	0.5%	Rank history: #47 in FY2021, #53 in FY2022, #42 in FY2023, #30 in FY2024 and #24 in FY2025; down 4 since Jul 2024–Jun 2025.
25	Yulista Support Services LLC Top agencies USAF (Department of the Air Force)	$27,243,918	0.5%	Rank history: not on the FY2021–FY2023 lists, #37 in FY2024 and #22 in FY2025; up 1 since Jul 2024–Jun 2025.
26	BAE Systems 14 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) Navy (Department of the Navy)	$26,521,070	0.5%	Rank history: #40 in FY2021, #46 in FY2022, #22 in FY2023, #35 in FY2024 and #30 in FY2025; up 6 since Jul 2024–Jun 2025.
27	JC Technology Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) HHS (Department of Health and Human Services)	$23,187,920	0.5%	Rank history: #34 in FY2021, #17 in FY2022, #19 in FY2023, #14 in FY2024 and #29 in FY2025; down 10 since Jul 2024–Jun 2025.
28	Honeywell International Inc. 11 awardees Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$22,160,998	0.4%	Rank history: #30 in FY2021, #20 in FY2022, #32 in FY2023, #34 in FY2024 and #36 in FY2025; up 13 since Jul 2024–Jun 2025.
29	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)	$21,378,444	0.4%	Rank history: not on the FY2021 list, #97 in FY2022, #82 in FY2023, #51 in FY2024 and #35 in FY2025; up 29 since Jul 2024–Jun 2025.
30	Goldbelt Frontier, LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$20,980,557	0.4%	Rank history: #23 in FY2021, #29 in FY2022, #27 in FY2023, #23 in FY2024 and #31 in FY2025; up 4 since Jul 2024–Jun 2025.
31	Tusas Motor Sanayii A.S. Top agencies Navy (Department of the Navy)	$19,279,077	0.4%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #26 in FY2025; up 38 since Jul 2024–Jun 2025.
32	IAP World Services, Inc. Top agencies USAF (Department of the Air Force)	$19,048,660	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
33	Apro International, Inc. Top agencies USAF (Department of the Air Force)	$18,993,456	0.4%	Rank history: #31 in FY2021, #41 in FY2022, #34 in FY2023, #31 in FY2024 and #39 in FY2025; up 3 since Jul 2024–Jun 2025.
34	Pergravis LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$18,783,174	0.4%	Rank history: #29 in FY2021, #30 in FY2022, #30 in FY2023, #36 in FY2024 and #37 in FY2025; down 3 since Jul 2024–Jun 2025.
35	Thermo Fisher Scientific Inc. 11 awardees, including Life Technologies Corporation, Thermo Electron North America LLC and FEI Company Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$18,248,227	0.4%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023, #33 in FY2024 and #34 in FY2025; down 2 since Jul 2024–Jun 2025.
36	Cartridge Technologies, LLC Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) FTC (Federal Trade Commission)	$17,539,107	0.4%	Rank history: #17 in FY2021, #14 in FY2022, #16 in FY2023, #18 in FY2024 and #23 in FY2025; down 11 since Jul 2024–Jun 2025.
37	Trillamed LLC Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$17,515,347	0.4%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; up 179 since Jul 2024–Jun 2025.
38	American Engineering Corporation Top agencies Navy (Department of the Navy) DODEA (Department of Defense Education Activity) Army (Department of the Army)	$17,082,070	0.3%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #54 in FY2025; up 10 since Jul 2024–Jun 2025.
39	Phillips Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$16,818,846	0.3%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 11 since Jul 2024–Jun 2025.
40	L3 Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$15,176,298	0.3%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; new, not ranked in Jul 2024–Jun 2025.
41	PC Mechanical, Inc. Top agencies Navy (Department of the Navy)	$14,927,963	0.3%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023, #64 in FY2024 and #50 in FY2025; up 37 since Jul 2024–Jun 2025.
42	Danaher Corporation 11 awardees, including Cepheid, Leica Microsystems Inc. and AB Sciex LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$14,042,045	0.3%	Rank history: #33 in FY2021, #38 in FY2022, #37 in FY2023, #38 in FY2024 and #41 in FY2025; down 3 since Jul 2024–Jun 2025.
43	Caes Systems LLC Top agencies Navy (Department of the Navy)	$13,292,322	0.3%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #38 in FY2025; down 3 since Jul 2024–Jun 2025.
44	Steris Corporation Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) USDA (Department of Agriculture)	$12,708,614	0.3%	Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and #46 in FY2025; up 3 since Jul 2024–Jun 2025.
45	Interfuze Corporation Top agencies Army (Department of the Army)	$12,638,925	0.3%	Rank history: not on the FY2021 list, #64 in FY2022, #46 in FY2023, #40 in FY2024 and #45 in FY2025; up 4 since Jul 2024–Jun 2025.
46	Guidehouse Inc. 2 awardees, including Peraton Inc. and Chromalloy Gas Turbine LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$11,938,613	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
47	Thomas Instrument, Incorporated Top agencies USAF (Department of the Air Force)	$11,680,904	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, not on the FY2023–FY2024 lists and #49 in FY2025; up 51 since Jul 2024–Jun 2025.
48	Eaton Corporation Top agencies DOT (Department of Transportation) Navy (Department of the Navy) DOS (Department of State)	$11,296,707	0.2%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #43 in FY2025; down 4 since Jul 2024–Jun 2025.
49	Cherokee Nation 2 awardees, including Cherokee Nation Armored Solutions, LLC and Cherokee Nation Aerospace and Defense, L.L.C. Top agencies Army (Department of the Army)	$11,224,559	0.2%	Rank history: not on the FY2021–FY2023 lists, #46 in FY2024 and not on the FY2025 list; down 6 since Jul 2024–Jun 2025.
50	Merchants Automotive Group Inc. Top agencies DOJ (Department of Justice)	$11,058,717	0.2%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #60 in FY2025; up 1 since Jul 2024–Jun 2025.
51	Olympus America Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$10,895,292	0.2%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #48 in FY2025; down 5 since Jul 2024–Jun 2025.
52	Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$10,496,430	0.2%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; down 33 since Jul 2024–Jun 2025.
53	Astrion Group, LLC Top agencies USAF (Department of the Air Force)	$10,287,684	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
54	Sonova USA Inc. Top agencies VA (Department of Veterans Affairs)	$9,744,726	0.2%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; down 27 since Jul 2024–Jun 2025.
55	Stryker Sales, LLC 4 awardees Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Navy (Department of the Navy)	$9,256,549	0.2%	Rank history: not on the FY2021–FY2025 lists; up 73 since Jul 2024–Jun 2025.
56	Frontier Strategies LLC Top agencies DHA (Defense Health Agency)	$9,154,741	0.2%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and not on the FY2024–FY2025 lists; up 49 since Jul 2024–Jun 2025.
57	Integrated Procurement Technologies Top agencies USAF (Department of the Air Force)	$8,943,106	0.2%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #55 in FY2025; new, not ranked in Jul 2024–Jun 2025.
58	Elbit Systems of America LLC Through Elbitamerica, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$8,886,356	0.2%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #44 in FY2025; down 23 since Jul 2024–Jun 2025.
59	Teledyne Flir Unmanned Ground Systems Inc 7 awardees, including Teledyne Flir Defense, LLC, Teledyne Brown Engineering, Inc. and Teledyne Instruments, Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy) Army (Department of the Army)	$8,538,438	0.2%	Rank history: #53 in FY2021, #43 in FY2022, #48 in FY2023, not on the FY2024 list and #88 in FY2025; up 20 since Jul 2024–Jun 2025.
60	Laboratory Equipment Service, LLC Top agencies HHS (Department of Health and Human Services)	$8,425,164	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, #70 in FY2023, #65 in FY2024 and #61 in FY2025; up 6 since Jul 2024–Jun 2025.
61	Al Rawabet Commercial Services & Contracting Co. W.L.L. Top agencies Army (Department of the Army)	$8,122,952	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, not on the FY2023 list, #76 in FY2024 and #59 in FY2025; down 1 since Jul 2024–Jun 2025.
62	Greenlight Group JV, LLC Top agencies Navy (Department of the Navy)	$8,042,178	0.2%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #69 in FY2025; up 6 since Jul 2024–Jun 2025.
63	Bell and Howell, LLC Top agencies Treasury (Department of the Treasury) VA (Department of Veterans Affairs)	$8,019,073	0.2%	Rank history: not on the FY2021–FY2023 lists, #77 in FY2024 and #58 in FY2025; down 4 since Jul 2024–Jun 2025.
64	Dongwon Construction Industries Co., Ltd. Top agencies Army (Department of the Army)	$7,778,140	0.2%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; up 1 since Jul 2024–Jun 2025.
65	Craneworks, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$7,738,222	0.2%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023 list, #87 in FY2024 and #77 in FY2025; up 26 since Jul 2024–Jun 2025.
66	Mechanical Resources Incorporated Top agencies Navy (Department of the Navy)	$7,736,357	0.2%	Rank history: #75 in FY2021, #62 in FY2022, not on the FY2023 list, #68 in FY2024 and #64 in FY2025; down 4 since Jul 2024–Jun 2025.
67	Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$7,733,466	0.2%	Rank history: not on the FY2021–FY2023 lists, #97 in FY2024 and #67 in FY2025; up 26 since Jul 2024–Jun 2025.
68	Getinge USA Sales, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$6,945,339	0.1%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #66 in FY2025; down 14 since Jul 2024–Jun 2025.
69	Agilent Technologies, Inc. 4 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army) DHA (Defense Health Agency)	$6,941,883	0.1%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #74 in FY2025; up 15 since Jul 2024–Jun 2025.
70	Murtech, Inc. Top agencies Army (Department of the Army)	$6,935,740	0.1%	Rank history: not on the FY2021–FY2023 lists, #81 in FY2024 and not on the FY2025 list; up 80 since Jul 2024–Jun 2025.
71	The Bionetics Corporation Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services)	$6,904,740	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023, #86 in FY2024 and #85 in FY2025; up 41 since Jul 2024–Jun 2025.
72	Adolf Lupp GMBH + Co. KG Through Lupp Facility Management GMBH Top agencies Army (Department of the Army)	$6,737,085	0.1%	Rank history: not on the FY2021 list, #59 in FY2022, #62 in FY2023, not on the FY2024 list and #83 in FY2025; up 24 since Jul 2024–Jun 2025.
73	Credence Management Solutions Limited Liability Company Top agencies USAF (Department of the Air Force)	$6,700,480	0.1%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; new, not ranked in Jul 2024–Jun 2025.
74	Teledyne Flir Defense, Inc. Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior) USAF (Department of the Air Force)	$6,657,919	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; up 39 since Jul 2024–Jun 2025.
75	Mesotech International, Inc. Top agencies USAF (Department of the Air Force)	$6,624,563	0.1%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #56 in FY2025; unchanged since Jul 2024–Jun 2025.
76	International Service Contractors LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$6,559,539	0.1%	Rank history: #90 in FY2021, not on the FY2022–FY2024 lists and #81 in FY2025; up 4 since Jul 2024–Jun 2025.
77	General Motors Company Top agencies DHS (Department of Homeland Security)	$6,542,445	0.1%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; new, not ranked in Jul 2024–Jun 2025.
78	Energy Systems Group, LLC Top agencies Army (Department of the Army)	$6,437,397	0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #73 in FY2025; down 1 since Jul 2024–Jun 2025.
79	Blackwood Associates, Inc. Top agencies USAF (Department of the Air Force) NEA (National Endowment for the Arts)	$6,360,146	0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; up 400 since Jul 2024–Jun 2025.
80	Chenega Base & Logistics Services LLC Top agencies Army (Department of the Army)	$6,267,701	0.1%	Rank history: not on the FY2021–FY2025 lists; up 78 since Jul 2024–Jun 2025.
81	Sustainment Technologies, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$6,248,956	0.1%	Rank history: #97 in FY2021, not on the FY2022 list, #88 in FY2023, #74 in FY2024 and #72 in FY2025; down 5 since Jul 2024–Jun 2025.
82	Philips North America LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$6,206,566	0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 7 since Jul 2024–Jun 2025.
83	Mitomo Co., Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$6,110,250	0.1%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; down 19 since Jul 2024–Jun 2025.
84	AGFA-GEVAERT 2 awardees, including Agfa Healthcare Corporation and Agfa US Corp Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) DHA (Defense Health Agency)	$5,856,651	0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; down 1 since Jul 2024–Jun 2025.
85	Chenega It Enterprise Services, LLC Top agencies DHS (Department of Homeland Security)	$5,814,704	0.1%	Rank history: #22 in FY2021, #45 in FY2022, #29 in FY2023, #32 in FY2024 and #53 in FY2025; up 18 since Jul 2024–Jun 2025.
86	Chugach Solutions Enterprise, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$5,714,603	0.1%	Rank history: not on the FY2021–FY2025 lists; up 251 since Jul 2024–Jun 2025.
87	MTU Maintenance Berlin- Brandenburg GMBH 2 awardees Top agencies Navy (Department of the Navy)	$5,707,160	0.1%	Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and not on the FY2025 list; down 30 since Jul 2024–Jun 2025.
88	M.c. Dean, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$5,499,563	0.1%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and #79 in FY2025; up 22 since Jul 2024–Jun 2025.
89	Genstrong LLC Top agencies DHS (Department of Homeland Security)	$5,361,692	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
90	Refcon Services Inc. Top agencies Navy (Department of the Navy)	$5,353,774	0.1%	Rank history: not on the FY2021–FY2023 lists, #96 in FY2024 and #94 in FY2025; up 25 since Jul 2024–Jun 2025.
91	Goldbelt C6, LLC Top agencies USAF (Department of the Air Force)	$5,033,082	0.1%	Rank history: not on the FY2021–FY2025 lists; up 27 since Jul 2024–Jun 2025.
92	Fortive Corporation 3 awardees, including Advanced Sterilization Products Services Inc., Censis Technologies, Inc. and Fluke Electronics Corp Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Navy (Department of the Navy)	$4,935,117	0.1%	Rank history: not on the FY2021–FY2025 lists; up 34 since Jul 2024–Jun 2025.
93	Solution One Industries, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$4,864,528	0.1%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #76 in FY2025; up 28 since Jul 2024–Jun 2025.
94	Epsilon Systems Solutions Inc. Top agencies Navy (Department of the Navy)	$4,713,113	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	New Techno Team LLC Top agencies Army (Department of the Army)	$4,635,207	0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023, not on the FY2024 list and #100 in FY2025; new, not ranked in Jul 2024–Jun 2025.
96	JW Business Company Top agencies Army (Department of the Army)	$4,583,473	0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 5 since Jul 2024–Jun 2025.
97	A Sonabend Company, Inc. Top agencies Navy (Department of the Navy)	$4,567,217	0.1%	Rank history: not on the FY2021–FY2025 lists; up 27 since Jul 2024–Jun 2025.
98	Pacific Overhead Crane Services Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army)	$4,475,169	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
99	Alliance Worldwide Distributing LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DOI (Department of the Interior)	$4,401,825	0.1%	Rank history: #82 in FY2021, #93 in FY2022, #91 in FY2023, not on the FY2024 list and #98 in FY2025; up 26 since Jul 2024–Jun 2025.
100	Allegiance Supply Inc. Top agencies Navy (Department of the Navy)	$4,331,369	0.1%	Rank history: not on the FY2021–FY2025 lists; up 16 since Jul 2024–Jun 2025.

Show 75 more

100 of 4,910 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	$3,435,615,583	RTX Corporation
8113 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$765,971,530	KBR Wyle Services LLC
8111 Automotive Repair and Maintenance	$409,706,941	General Dynamics Corporation
8114 Personal and Household Goods Repair and Maintenance	$45,205,164	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 $4.98 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
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 Jul 2025–Jun 2026?

1. RTX Corporation ($417M), 2. Leidos Holdings, Inc. ($406M), 3. Techflow, Inc. ($329M), 4. General Dynamics Corporation ($244M), 5. Lockheed Martin Corporation ($227M), 6. The Boeing Company ($187M), 7. Northrop Grumman Systems Corporation ($179M), 8. S & K Security Group LLC ($115M), 9. Agiliti Health Inc ($95M), 10. Huntington Ingalls Industries, Inc. ($90.7M).

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