Top 100 Contractors in NAICS 81: Other Services (except Public Administration), Aug 2025–Jul 2026

Name: Top 100 Contractors in NAICS 81: Other Services (except Public Administration), Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 81: Other Services (except Public Administration), FY2025.

The top 10 won 39% of NAICS 81 contract dollars from August 2025 through July 2026

Contract obligations: $4,687,463,809 Net of deobligations, by contracts coded NAICS 81 or a code under it
Contractors: 6,063 Parent companies with an obligation
Largest contractor: RTX Corporation $315 million, 6.2% of obligations
Data as of: Nov 5, 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 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)	$314,872,834	6.2%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #10 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. and Leidos Security Detection & Automation, Inc. Top agencies DHS (Department of Homeland Security) CSOSA (Court Services and Offender Supervision Agency)	$309,829,739	6.1%	Rank history: #5 in FY2021, #5 in FY2022, #7 in FY2023, #7 in FY2024 and #5 in FY2025; up 4 since Aug 2024–Jul 2025.
3	General Dynamics Corporation 11 awardees, including General Dynamics Land Systems Inc., General Dynamics Information Technology, Inc. and General Dynamics Land Systems Customer Service & Support Company Top agencies Army (Department of the Army) DOT (Department of Transportation) DHA (Defense Health Agency)	$234,700,155	4.6%	Rank history: #6 in FY2021, #3 in FY2022, #2 in FY2023, #1 in FY2024 and #3 in FY2025; up 1 since Aug 2024–Jul 2025.
4	Lockheed Martin Corporation 9 awardees, including Lockheed Martin Global, Inc., Sikorsky Aircraft Corporation and Lockheed Martin Coherent Technologies, Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$216,721,141	4.3%	Rank history: #12 in FY2021, #6 in FY2022, #8 in FY2023, #6 in FY2024 and #6 in FY2025; up 3 since Aug 2024–Jul 2025.
5	Techflow, Inc. Top agencies DHS (Department of Homeland Security)	$200,300,156	4.0%	Rank history: #3 in FY2021, #4 in FY2022, #4 in FY2023, #3 in FY2024 and #4 in FY2025; down 3 since Aug 2024–Jul 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)	$197,061,935	3.9%	Rank history: #8 in FY2021, #7 in FY2022, #10 in FY2023, #9 in FY2024 and #8 in FY2025; up 6 since Aug 2024–Jul 2025.
7	Northrop Grumman Systems Corporation 13 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOT (Department of Transportation)	$195,546,517	3.9%	Rank history: #2 in FY2021, #2 in FY2022, #6 in FY2023, #8 in FY2024 and #7 in FY2025; down 2 since Aug 2024–Jul 2025.
8	S & K Security Group LLC Top agencies DHS (Department of Homeland Security)	$134,787,335	2.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
9	Agiliti Health Inc Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$96,491,724	1.9%	Rank history: #13 in FY2021, #8 in FY2022, #5 in FY2023, #4 in FY2024 and #17 in FY2025; up 122 since Aug 2024–Jul 2025.
10	Motorola Solutions, Inc. 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$93,653,765	1.9%	Rank history: #16 in FY2021, #15 in FY2022, #12 in FY2023, #29 in FY2024 and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11	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)	$88,486,245	1.8%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #9 in FY2025; down 2 since Aug 2024–Jul 2025.
12	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)	$69,385,247	1.4%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #2 in FY2025; down 9 since Aug 2024–Jul 2025.
13	Huntington Ingalls Industries, Inc. 4 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)	$64,937,329	1.3%	Rank history: #11 in FY2021, #11 in FY2022, #25 in FY2023, #21 in FY2024 and #11 in FY2025; down 3 since Aug 2024–Jul 2025.
14	L3Harris Technologies, Inc. 21 awardees, including L3 Technologies, Inc., L3Harris Maritime Services Inc. and Fisica Applied Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$62,857,799	1.2%	Rank history: #10 in FY2021, #12 in FY2022, #11 in FY2023, #12 in FY2024 and #15 in FY2025; up 1 since Aug 2024–Jul 2025.
15	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)	$62,111,430	1.2%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #10 in FY2025; down 7 since Aug 2024–Jul 2025.
16	Rapiscan Systems Inc. Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) DOD (Department of Defense)	$57,100,216	1.1%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #14 in FY2025; down 3 since Aug 2024–Jul 2025.
17	Deloitte Through Deloitte Consulting LLP Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$40,519,809	0.8%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; up 93 since Aug 2024–Jul 2025.
18	Siemens Corporation 6 awardees, including Varian Medical Systems, Inc., Siemens Medical Solutions Usa, Inc. and Varex Imaging Corp Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) DHS (Department of Homeland Security)	$36,531,122	0.7%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #22 in FY2025; up 11 since Aug 2024–Jul 2025.
19	General Electric Company 17 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)	$34,370,557	0.7%	Rank history: #14 in FY2021, #13 in FY2022, #15 in FY2023, #22 in FY2024 and #27 in FY2025; up 6 since Aug 2024–Jul 2025.
20	Atec Inc. 2 awardees, including Vital Link, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$34,035,757	0.7%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21	Peraton Inc. 2 awardees, including Knight Point Systems, LLC Top agencies DHS (Department of Homeland Security)	$31,950,956	0.6%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	Becton, Dickinson and Co 10 awardees, including Carefusion Solutions, LLC, Parata Systems LLC and Chudy Group LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$28,262,451	0.6%	Rank history: #50 in FY2021, #56 in FY2022, #46 in FY2023, #31 in FY2024 and #25 in FY2025; up 4 since Aug 2024–Jul 2025.
23	Calista Corp 2 awardees, including Yulista Support Services LLC and Yukon Equipment, Inc. Top agencies USAF (Department of the Air Force)	$27,329,305	0.5%	Rank history: #26 in FY2021, #34 in FY2022, #40 in FY2023, not on the FY2024 list and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
24	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)	$26,341,699	0.5%	Rank history: #22 in FY2021, #38 in FY2022, #48 in FY2023, #51 in FY2024 and #28 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25	Sandhills Utility Services, LLC Top agencies Army (Department of the Army)	$26,218,895	0.5%	Rank history: #21 in FY2021, #27 in FY2022, #23 in FY2023, #27 in FY2024 and #29 in FY2025; up 6 since Aug 2024–Jul 2025.
26	BAE Systems 12 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Space & Mission Systems Inc. and BAE Systems Controls Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$24,935,491	0.5%	Rank history: #43 in FY2021, #49 in FY2022, #22 in FY2023, #37 in FY2024 and #33 in FY2025; up 20 since Aug 2024–Jul 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)	$23,711,260	0.5%	Rank history: not on the FY2021 list, #19 in FY2022, #19 in FY2023, #14 in FY2024 and #31 in FY2025; down 10 since Aug 2024–Jul 2025.
28	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)	$20,572,843	0.4%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023, #55 in FY2024 and #37 in FY2025; up 25 since Aug 2024–Jul 2025.
29	The Chenega Corporation 4 awardees, including Chenega Base & Logistics Services LLC, Chenega It Enterprise Services, LLC and C2 Alaska, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$19,838,891	0.4%	Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; new, not ranked in Aug 2024–Jul 2025.
30	Thermo Fisher Scientific Inc. 11 awardees, including Thermo Electron North America LLC, Life Technologies Corporation and FEI Company Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) Navy (Department of the Navy)	$19,403,633	0.4%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #36 in FY2025; up 7 since Aug 2024–Jul 2025.
31	Apro International, Inc. Top agencies USAF (Department of the Air Force)	$19,070,041	0.4%	Rank history: #33 in FY2021, #44 in FY2022, #36 in FY2023, #32 in FY2024 and #41 in FY2025; up 5 since Aug 2024–Jul 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 Aug 2024–Jul 2025.
33	Danaher Corporation 12 awardees, including Cepheid, AB Sciex LLC and Leica Microsystems Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$17,916,809	0.4%	Rank history: #35 in FY2021, #41 in FY2022, #41 in FY2023, #41 in FY2024 and #42 in FY2025; up 7 since Aug 2024–Jul 2025.
34	Honeywell International Inc. 9 awardees Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$17,902,464	0.4%	Rank history: #32 in FY2021, #20 in FY2022, #33 in FY2023, not on the FY2024 list and #38 in FY2025; up 10 since Aug 2024–Jul 2025.
35	Cartridge Technologies, LLC Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Treasury (Department of the Treasury)	$17,850,846	0.4%	Rank history: #17 in FY2021, #14 in FY2022, #16 in FY2023, #18 in FY2024 and #24 in FY2025; down 11 since Aug 2024–Jul 2025.
36	Trillamed LLC Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$17,358,666	0.3%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; up 210 since Aug 2024–Jul 2025.
37	Teledyne Flir Unmanned Ground Systems Inc 13 awardees, including Teledyne Flir Defense, LLC, Teledyne Defense Electronics, LLC and Teledyne Brown Engineering, Inc. Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation) Navy (Department of the Navy)	$17,226,251	0.3%	Rank history: #57 in FY2021, #46 in FY2022, #53 in FY2023, not on the FY2024 list and #32 in FY2025; up 131 since Aug 2024–Jul 2025.
38	Phillips Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$17,072,994	0.3%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 12 since Aug 2024–Jul 2025.
39	Pergravis LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$16,964,597	0.3%	Rank history: #31 in FY2021, #31 in FY2022, #31 in FY2023, #38 in FY2024 and #39 in FY2025; down 5 since Aug 2024–Jul 2025.
40	American Engineering Corporation Top agencies Navy (Department of the Navy) DODEA (Department of Defense Education Activity) Army (Department of the Army)	$15,863,658	0.3%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #58 in FY2025; up 12 since Aug 2024–Jul 2025.
41	Wiregrass Rehabilitation Center Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) DHA (Defense Health Agency)	$15,666,246	0.3%	Rank history: not on the FY2021 list, #88 in FY2022, #85 in FY2023, #70 in FY2024 and #56 in FY2025; up 13 since Aug 2024–Jul 2025.
42	PC Mechanical, Inc. Top agencies Navy (Department of the Navy)	$15,200,486	0.3%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023, #71 in FY2024 and #55 in FY2025; up 9 since Aug 2024–Jul 2025.
43	Smiths Detection Inc. Top agencies DHS (Department of Homeland Security) AOUSC (Administrative Office of the U.S. Courts) USDA (Department of Agriculture)	$14,428,272	0.3%	Rank history: not on the FY2021–FY2023 lists, #46 in FY2024 and #43 in FY2025; down 13 since Aug 2024–Jul 2025.
44	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)	$13,965,804	0.3%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #46 in FY2025; up 3 since Aug 2024–Jul 2025.
45	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)	$13,409,903	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
46	Caes Systems LLC Top agencies Navy (Department of the Navy)	$12,554,472	0.2%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #40 in FY2025; down 7 since Aug 2024–Jul 2025.
47	Thomas Instrument, Incorporated Top agencies USAF (Department of the Air Force)	$12,042,600	0.2%	Rank history: not on the FY2021 list, #75 in FY2022, not on the FY2023–FY2024 lists and #52 in FY2025; up 72 since Aug 2024–Jul 2025.
48	Quality Insights, Inc. Top agencies VA (Department of Veterans Affairs)	$11,747,453	0.2%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #75 in FY2025; up 26 since Aug 2024–Jul 2025.
49	Joint Commission On Accreditation of Healthcare Organizations Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$11,556,938	0.2%	Rank history: #23 in FY2021, #33 in FY2022, #35 in FY2023, #33 in FY2024 and #48 in FY2025; down 17 since Aug 2024–Jul 2025.
50	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, #49 in FY2024 and #54 in FY2025; down 7 since Aug 2024–Jul 2025.
51	Cubic Defense Applications, Inc. Top agencies USAF (Department of the Air Force)	$11,096,426	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	Merchants Automotive Group Inc. Top agencies DOJ (Department of Justice)	$11,079,217	0.2%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and #65 in FY2025; up 11 since Aug 2024–Jul 2025.
53	Olympus America Inc. 2 awardees, including Olympus Latin America, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$10,743,026	0.2%	Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and #51 in FY2025; down 4 since Aug 2024–Jul 2025.
54	Eaton Corporation Top agencies DOT (Department of Transportation) Navy (Department of the Navy) DOS (Department of State)	$10,543,174	0.2%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and not on the FY2025 list; down 13 since Aug 2024–Jul 2025.
55	Astrion Group, LLC Top agencies USAF (Department of the Air Force)	$10,328,215	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Credence Management Solutions Limited Liability Company Top agencies USAF (Department of the Air Force)	$10,295,060	0.2%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; new, not ranked in Aug 2024–Jul 2025.
57	Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$9,949,934	0.2%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; down 38 since Aug 2024–Jul 2025.
58	Interfuze Corporation Top agencies Army (Department of the Army)	$9,868,925	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #51 in FY2023, #43 in FY2024 and #49 in FY2025; down 16 since Aug 2024–Jul 2025.
59	Sonova USA Inc. Top agencies VA (Department of Veterans Affairs)	$9,748,356	0.2%	Rank history: not on the FY2021–FY2025 lists; down 32 since Aug 2024–Jul 2025.
60	Tusas Motor Sanayii A.S. Top agencies Navy (Department of the Navy)	$9,682,512	0.2%	Rank history: not on the FY2021–FY2023 lists, #81 in FY2024 and #26 in FY2025; down 22 since Aug 2024–Jul 2025.
61	Integrated Procurement Technologies Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,958,871	0.2%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Aug 2024–Jul 2025.
62	Koninklijke Philips N.V. 6 awardees, including Philips North America LLC, Philips GMBH and Philips Medical Systems Puerto Rico Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$8,721,820	0.2%	Rank history: not on the FY2021 list, #77 in FY2022, #71 in FY2023, not on the FY2024 list and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
63	Job Options, Incorporated Top agencies DHA (Defense Health Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$8,709,836	0.2%	Rank history: #80 in FY2021, #78 in FY2022, #70 in FY2023, #68 in FY2024 and #62 in FY2025; down 2 since Aug 2024–Jul 2025.
64	Ernst & Young LLP Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$8,555,713	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	Elbit Systems of America LLC Through Elbitamerica, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$8,431,706	0.2%	Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and #47 in FY2025; down 32 since Aug 2024–Jul 2025.
66	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, #100 in FY2022, #77 in FY2023, #72 in FY2024 and #66 in FY2025; up 5 since Aug 2024–Jul 2025.
67	Craneworks, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$8,164,616	0.2%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and #88 in FY2025; up 75 since Aug 2024–Jul 2025.
68	Stryker Corporation 5 awardees, including Stryker Sales, LLC and Howmedica Osteonics Corp Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Navy (Department of the Navy)	$8,141,758	0.2%	Rank history: #60 in FY2021, #61 in FY2022, #63 in FY2023, #73 in FY2024 and #87 in FY2025; up 132 since Aug 2024–Jul 2025.
69	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–FY2023 lists, #85 in FY2024 and #64 in FY2025; down 5 since Aug 2024–Jul 2025.
70	Bell and Howell, LLC Top agencies Treasury (Department of the Treasury) VA (Department of Veterans Affairs)	$8,092,073	0.2%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #63 in FY2025; down 8 since Aug 2024–Jul 2025.
71	Greenlight Group JV, LLC Top agencies Navy (Department of the Navy)	$8,074,063	0.2%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and #76 in FY2025; up 5 since Aug 2024–Jul 2025.
72	Dongwon Construction Industries Co., Ltd. Top agencies Army (Department of the Army)	$8,051,793	0.2%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; down 3 since Aug 2024–Jul 2025.
73	CPI Electron Device Business, Inc. 3 awardees, including Microwave Power Products, Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) Commerce (Department of Commerce)	$7,606,955	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	Agilent Technologies, Inc. 4 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army) DHA (Defense Health Agency)	$7,047,232	0.1%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #83 in FY2025; up 73 since Aug 2024–Jul 2025.
75	Adolf Lupp GMBH + Co. KG Through Lupp Facility Management GMBH Top agencies Army (Department of the Army)	$7,011,242	0.1%	Rank history: not on the FY2021 list, #64 in FY2022, #68 in FY2023, not on the FY2024 list and #94 in FY2025; up 38 since Aug 2024–Jul 2025.
76	Murtech, Inc. Top agencies Army (Department of the Army)	$6,935,398	0.1%	Rank history: not on the FY2021–FY2023 lists, #91 in FY2024 and not on the FY2025 list; up 110 since Aug 2024–Jul 2025.
77	Vetpride Services, Inc. 2 awardees, including Vetpride-Emi Maintenance Solutions, LLC Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy)	$6,898,277	0.1%	Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and not on the FY2025 list; up 12 since Aug 2024–Jul 2025.
78	Solution One Industries, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$6,872,684	0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #86 in FY2025; up 175 since Aug 2024–Jul 2025.
79	Getinge USA Sales, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$6,788,878	0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #72 in FY2025; down 22 since Aug 2024–Jul 2025.
80	Mesotech International, Inc. Top agencies USAF (Department of the Air Force)	$6,780,236	0.1%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #60 in FY2025; up 2 since Aug 2024–Jul 2025.
81	Centerpoint Energy, Inc. Through Energy Systems Group, LLC Top agencies Army (Department of the Army)	$6,619,871	0.1%	Rank history: #48 in FY2021, #81 in FY2022, not on the FY2023–FY2024 lists and #81 in FY2025; new, not ranked in Aug 2024–Jul 2025.
82	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: not on the FY2021–FY2024 lists and #92 in FY2025; up 5 since Aug 2024–Jul 2025.
83	General Motors Company Top agencies DHS (Department of Homeland Security)	$6,542,445	0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84	Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$6,474,276	0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; up 9 since Aug 2024–Jul 2025.
85	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 #89 in FY2025; new, not ranked in Aug 2024–Jul 2025.
86	The Bionetics Corporation Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services)	$6,356,333	0.1%	Rank history: not on the FY2021–FY2023 lists, #97 in FY2024 and #96 in FY2025; up 35 since Aug 2024–Jul 2025.
87	L3 Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$6,184,981	0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; down 31 since Aug 2024–Jul 2025.
88	Sustainment Technologies, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Navy (Department of the Navy)	$5,886,255	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023, #83 in FY2024 and #80 in FY2025; down 10 since Aug 2024–Jul 2025.
89	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 #95 in FY2025; up 3 since Aug 2024–Jul 2025.
90	MTU Maintenance Berlin- Brandenburg GMBH 2 awardees, including Vericor Power Systems LLC Top agencies Navy (Department of the Navy)	$5,845,517	0.1%	Rank history: not on the FY2021–FY2025 lists; down 30 since Aug 2024–Jul 2025.
91	American West Laundry LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$5,726,441	0.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023, #82 in FY2024 and #99 in FY2025; up 3 since Aug 2024–Jul 2025.
92	Mitomo Co., Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$5,682,068	0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; down 19 since Aug 2024–Jul 2025.
93	Cummins Inc. 9 awardees, including Distribuidora Cummins De Panama S De RL Top agencies Army (Department of the Army) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$5,667,486	0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Aug 2024–Jul 2025.
94	Goodwill of Colorado 2 awardees, including Goodwill Industrial Services Corp Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$5,503,741	0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 113 since Aug 2024–Jul 2025.
95	M.c. Dean, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$5,430,155	0.1%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #90 in FY2025; up 29 since Aug 2024–Jul 2025.
96	Illinois Tool Works Inc. 6 awardees, including ITW Food Equipment Group LLC, North Star Imaging Incorporated and MTS Systems Corporation Top agencies Army (Department of the Army) DECA (Defense Commissary Agency) VA (Department of Veterans Affairs)	$5,351,670	0.1%	Rank history: not on the FY2021–FY2025 lists; up 105 since Aug 2024–Jul 2025.
97	Genstrong LLC Top agencies DHS (Department of Homeland Security)	$5,345,087	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	Robertson & Penn, Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$5,296,681	0.1%	Rank history: not on the FY2021–FY2025 lists; up 61 since Aug 2024–Jul 2025.
99	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)	$5,290,910	0.1%	Rank history: not on the FY2021–FY2025 lists; up 63 since Aug 2024–Jul 2025.
100	5600 Fishers Lane LLC Top agencies HHS (Department of Health and Human Services)	$5,273,756	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.

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100 of 6,063 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 81

Code	Net obligations	Largest contractor
811 Repair and Maintenance	$4,300,027,050	RTX Corporation
812 Personal and Laundry Services	$251,812,430	Wiregrass Rehabilitation Center Inc.
813 Religious, Grantmaking, Civic, Professional, and Similar Organizations	$135,277,001	General Dynamics Corporation

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 $5.05 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.
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 Aug 2024–Jul 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 81 contractors in Aug 2025–Jul 2026?

1. RTX Corporation ($315M), 2. Leidos Holdings, Inc. ($310M), 3. General Dynamics Corporation ($235M), 4. Lockheed Martin Corporation ($217M), 5. Techflow, Inc. ($200M), 6. The Boeing Company ($197M), 7. Northrop Grumman Systems Corporation ($196M), 8. S & K Security Group LLC ($135M), 9. Agiliti Health Inc ($96.5M), 10. Motorola Solutions, Inc. ($93.7M).

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