Top 100 Contractors in NAICS 335311: Power, Distribution, and Specialty Transformer Manufacturing, Aug 2025–Jul 2026

Name: Top 100 Contractors in NAICS 335311: Power, Distribution, and Specialty Transformer Manufacturing, 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 335311: Power, Distribution, and Specialty Transformer Manufacturing, FY2025.

The top 10 won 61% of NAICS 335311 contract dollars from August 2025 through July 2026

Contract obligations: $329,052,198 Net of deobligations, by contracts coded NAICS 335311
Contractors: 684 Parent companies with an obligation
Largest contractor: Tepco Energy Partner, Incorporated $63.2 million, 18.3% 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	Tepco Energy Partner, Incorporated Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$63,230,989	18.3%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	Vincorion LLC Top agencies Army (Department of the Army)	$42,368,236	12.3%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; up 7 since Aug 2024–Jul 2025.
3	The Chugoku Electric Power Company, Incorporated Top agencies Navy (Department of the Navy)	$23,780,833	6.9%	Rank history: #5 in FY2021, #2 in FY2022, #2 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since Aug 2024–Jul 2025.
4	Teledyne Technologies Incorporated Through Teledyne Instruments Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$18,997,145	5.5%	Rank history: #22 in FY2021, #6 in FY2022, #9 in FY2023, #8 in FY2024 and #47 in FY2025; up 11 since Aug 2024–Jul 2025.
5	Siemens Industry Inc. Top agencies USAF (Department of the Air Force)	$15,823,720	4.6%	Rank history: not on the FY2021–FY2024 lists and #10 in FY2025; up 90 since Aug 2024–Jul 2025.
6	General Dynamics Corporation 5 awardees, including General Dynamics Land Systems Inc., General Dynamics-Ots, Inc. and General Dynamics Land Systems - Canada Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$13,995,539	4.0%	Rank history: #37 in FY2021, #48 in FY2022, not on the FY2023–FY2024 lists and #8 in FY2025; up 145 since Aug 2024–Jul 2025.
7	Tohoku Electric Power Company Incorporated Top agencies USAF (Department of the Air Force)	$9,584,322	2.8%	Rank history: #7 in FY2021, #3 in FY2022, #3 in FY2023, #4 in FY2024 and #6 in FY2025; down 1 since Aug 2024–Jul 2025.
8	P.a.r. Products Co Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$9,061,943	2.6%	Rank history: not on the FY2021 list, #10 in FY2022, not on the FY2023 list, #13 in FY2024 and #14 in FY2025; up 11 since Aug 2024–Jul 2025.
9	RCT Systems, Inc. Top agencies Navy (Department of the Navy)	$7,717,000	2.2%	Rank history: #2 in FY2021, not on the FY2022–FY2023 lists, #6 in FY2024 and #58 in FY2025; up 65 since Aug 2024–Jul 2025.
10	Triman Industries Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$6,745,077	2.0%	Rank history: #43 in FY2021, #47 in FY2022, #20 in FY2023, #35 in FY2024 and #33 in FY2025; up 13 since Aug 2024–Jul 2025.
11	Phillip Cable Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,741,443	1.4%	Rank history: #31 in FY2021, #23 in FY2022, #16 in FY2023, #16 in FY2024 and #11 in FY2025; up 1 since Aug 2024–Jul 2025.
12	GE Energy Power Conversion USA Inc. Through GE Energy Power Conversion Naval Systems Inc. Top agencies Navy (Department of the Navy)	$4,576,246	1.3%	Rank history: #82 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
13	Continuous Solutions Inc. Top agencies Navy (Department of the Navy)	$4,134,085	1.2%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; new, not ranked in Aug 2024–Jul 2025.
14	Schneider Electric USA Inc. Top agencies DOT (Department of Transportation) DOE (Department of Energy)	$4,124,823	1.2%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #13 in FY2025; down 1 since Aug 2024–Jul 2025.
15	Massa Products Corporation Top agencies DLA (Defense Logistics Agency)	$3,396,503	1.0%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023, #54 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
16	Leonardo S.p.A. 6 awardees, including DRS Naval Power Systems Inc., Pivotal Power Inc. and DRS Training & Control Systems, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,095,939	0.9%	Rank history: #19 in FY2021, #4 in FY2022, #51 in FY2023, #10 in FY2024 and #5 in FY2025; down 12 since Aug 2024–Jul 2025.
17	L3Harris Technologies, Inc. 9 awardees, including L3Harris Maritime Power & Energy Solutions, Inc., L3Harris Maritime Services Inc. and L3 Technologies, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,781,126	0.8%	Rank history: #24 in FY2021, #15 in FY2022, #30 in FY2023, #32 in FY2024 and #4 in FY2025; down 12 since Aug 2024–Jul 2025.
18	CPI Electron Device Business, Inc. 2 awardees, including Microwave Power Products, Inc. Top agencies Navy (Department of the Navy)	$2,624,372	0.8%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; up 23 since Aug 2024–Jul 2025.
19	Berkshire Hathaway Inc. 2 awardees, including TTI Inc. Top agencies DLA (Defense Logistics Agency)	$2,298,575	0.7%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; up 29 since Aug 2024–Jul 2025.
20	Gardner Zemke Company Top agencies DOI (Department of the Interior)	$2,268,000	0.7%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21	Heico Corp 3 awardees, including Pioneer Industries, LLC, Rocky Mountain Hydrostatics, LLC and Seal Dynamics LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,134,420	0.6%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	Mavich, LLC Top agencies DLA (Defense Logistics Agency)	$2,115,059	0.6%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #18 in FY2024 and #40 in FY2025; up 11 since Aug 2024–Jul 2025.
23	The Boeing Company 4 awardees, including Boeing Distribution, Inc. and Boeing Distribution Services, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,618,055	0.5%	Rank history: not on the FY2021 list, #84 in FY2022, not on the FY2023 list, #67 in FY2024 and #67 in FY2025; up 134 since Aug 2024–Jul 2025.
24	Maxa Beam Searchlights, Inc. Top agencies DLA (Defense Logistics Agency)	$1,582,896	0.5%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; up 40 since Aug 2024–Jul 2025.
25	Quarterwave Corp. Top agencies DOT (Department of Transportation)	$1,513,077	0.4%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #42 in FY2025; up 4 since Aug 2024–Jul 2025.
26	Eaton Corporation Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$1,413,360	0.4%	Rank history: not on the FY2021–FY2023 lists, #29 in FY2024 and not on the FY2025 list; unchanged since Aug 2024–Jul 2025.
27	Herren Associates Inc. Top agencies Navy (Department of the Navy)	$1,398,889	0.4%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #64 in FY2025; up 55 since Aug 2024–Jul 2025.
28	Jamaica Bearings Co., Inc. Top agencies DLA (Defense Logistics Agency)	$1,398,846	0.4%	Rank history: #13 in FY2021, #13 in FY2022, #11 in FY2023, not on the FY2024 list and #19 in FY2025; down 11 since Aug 2024–Jul 2025.
29	BKW GSE Consulting, Inc. Top agencies USAF (Department of the Air Force)	$1,216,301	0.4%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; up 176 since Aug 2024–Jul 2025.
30	The L.c.doane Company Top agencies DLA (Defense Logistics Agency)	$1,214,474	0.4%	Rank history: #27 in FY2021, #73 in FY2022, #38 in FY2023, #62 in FY2024 and #70 in FY2025; up 27 since Aug 2024–Jul 2025.
31	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$1,195,169	0.3%	Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #34 in FY2025; up 12 since Aug 2024–Jul 2025.
32	Woodard Electric Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$1,091,952	0.3%	Rank history: not on the FY2021 list, #66 in FY2022, not on the FY2023 list, #87 in FY2024 and #52 in FY2025; up 38 since Aug 2024–Jul 2025.
33	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$1,052,331	0.3%	Rank history: #34 in FY2021, #41 in FY2022, #36 in FY2023, #43 in FY2024 and #7 in FY2025; down 26 since Aug 2024–Jul 2025.
34	Elemco Services, Inc. Top agencies VA (Department of Veterans Affairs)	$1,033,279	0.3%	Rank history: #32 in FY2021, not on the FY2022 list, #44 in FY2023, #65 in FY2024 and #62 in FY2025; up 33 since Aug 2024–Jul 2025.
35	Legacy Aircraft Services, Inc. Top agencies DLA (Defense Logistics Agency)	$1,021,005	0.3%	Rank history: not on the FY2021 list, #53 in FY2022, not on the FY2023 list, #38 in FY2024 and #27 in FY2025; up 17 since Aug 2024–Jul 2025.
36	TJR Procurement, LLC Top agencies DLA (Defense Logistics Agency)	$1,018,676	0.3%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #68 in FY2025; up 47 since Aug 2024–Jul 2025.
37	Tactair Fluid Controls Inc 5 awardees, including Avtechtyee Inc., Electromech Technologies LLC and Harcosemco LLC Top agencies DLA (Defense Logistics Agency)	$967,344	0.3%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #57 in FY2025; down 29 since Aug 2024–Jul 2025.
38	Powerstar Inc. Top agencies Navy (Department of the Navy)	$966,905	0.3%	Rank history: #66 in FY2021 and not on the FY2022–FY2025 lists; up 129 since Aug 2024–Jul 2025.
39	Government of the United States Through Federal Prison Industries, Inc. Top agencies Army (Department of the Army)	$926,813	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
40	Gate Industries Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$914,542	0.3%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #46 in FY2025; up 11 since Aug 2024–Jul 2025.
41	Jo-Kell Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$913,680	0.3%	Rank history: #47 in FY2021, #27 in FY2022, #23 in FY2023, #27 in FY2024 and #22 in FY2025; down 25 since Aug 2024–Jul 2025.
42	Nova Power Solutions, Inc. Top agencies Navy (Department of the Navy)	$879,306	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
43	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency)	$865,282	0.3%	Rank history: not on the FY2021 list, #11 in FY2022, #28 in FY2023, #47 in FY2024 and #61 in FY2025; up 2 since Aug 2024–Jul 2025.
44	Coil Winding Specialist, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) USAF (Department of the Air Force)	$817,386	0.2%	Rank history: #38 in FY2021, #21 in FY2022, #22 in FY2023, #63 in FY2024 and #43 in FY2025; down 2 since Aug 2024–Jul 2025.
45	ACE Electronics Defense Systems, LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$812,443	0.2%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; up 35 since Aug 2024–Jul 2025.
46	Galvion Ltd Top agencies DLA (Defense Logistics Agency)	$792,606	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
47	Arnold Magnetics Corporation Top agencies Navy (Department of the Navy)	$786,429	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
48	Eaton Corporation Public Limited Company 3 awardees, including Mission Systems Davenport Inc. and Eaton Corporation Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$766,202	0.2%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2023, not on the FY2024 list and #96 in FY2025; up 358 since Aug 2024–Jul 2025.
49	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$759,054	0.2%	Rank history: #59 in FY2021, #59 in FY2022, not on the FY2023–FY2024 lists and #51 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50	Hexatronic Rochester Cable Inc. Through Brantner and Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$748,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
51	Valkyrie Enterprises, LLC Top agencies Navy (Department of the Navy)	$736,033	0.2%	Rank history: not on the FY2021–FY2025 lists; up 175 since Aug 2024–Jul 2025.
52	MP Aero LLC Top agencies DLA (Defense Logistics Agency)	$727,723	0.2%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 56 since Aug 2024–Jul 2025.
53	BAE Systems 5 awardees, including BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Controls Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$727,099	0.2%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and #31 in FY2025; down 26 since Aug 2024–Jul 2025.
54	General Atomics 2 awardees Top agencies DLA (Defense Logistics Agency)	$725,822	0.2%	Rank history: not on the FY2021–FY2025 lists; up 187 since Aug 2024–Jul 2025.
55	Innomotics LLC Top agencies USAF (Department of the Air Force)	$696,914	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Celltron, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$683,026	0.2%	Rank history: not on the FY2021 list, #95 in FY2022, not on the FY2023–FY2024 lists and #53 in FY2025; up 201 since Aug 2024–Jul 2025.
57	Essex Electro Engineers Inc. Top agencies Navy (Department of the Navy)	$667,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
58	AMZ Alabama Inc. Top agencies DLA (Defense Logistics Agency)	$652,252	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59	Airborne Outfitters LLC Top agencies DLA (Defense Logistics Agency)	$637,388	0.2%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023, not on the FY2024 list and #72 in FY2025; up 17 since Aug 2024–Jul 2025.
60	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$623,492	0.2%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #69 in FY2025; down 28 since Aug 2024–Jul 2025.
61	Undersea Sensor Systems Inc. 2 awardees, including Ems Development Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$593,042	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
62	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$569,522	0.2%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 48 since Aug 2024–Jul 2025.
63	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$556,301	0.2%	Rank history: #63 in FY2021, #9 in FY2022, #19 in FY2023, #46 in FY2024 and #26 in FY2025; down 39 since Aug 2024–Jul 2025.
64	Outdoor Venture Corp Through Ovc-Engineered Solutions LLC Top agencies DLA (Defense Logistics Agency)	$544,098	0.2%	Rank history: #51 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	Clarke Hess Communication Research Corp Top agencies Navy (Department of the Navy)	$540,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	Newvac, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$528,503	0.2%	Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and #29 in FY2025; down 45 since Aug 2024–Jul 2025.
67	Federal Prison Industries, Inc - EBG Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$527,513	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68	Power West Engineering LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$522,723	0.2%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; new, not ranked in Aug 2024–Jul 2025.
69	Metalloy Industries, Inc. Top agencies Navy (Department of the Navy)	$502,436	0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$502,134	0.1%	Rank history: #70 in FY2021, #58 in FY2022, #58 in FY2023, #41 in FY2024 and #59 in FY2025; down 9 since Aug 2024–Jul 2025.
71	Wrigglesworth Enterprises Inc. Top agencies Navy (Department of the Navy)	$485,885	0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72	Hose-Mccann Telephone Co, Inc. Top agencies DLA (Defense Logistics Agency)	$483,639	0.1%	Rank history: not on the FY2021–FY2025 lists; up 130 since Aug 2024–Jul 2025.
73	K.i.system Co.,Ltd. Top agencies USAF (Department of the Air Force)	$480,924	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	Airborne Supply Inc. Top agencies DLA (Defense Logistics Agency)	$479,783	0.1%	Rank history: #48 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
75	Custom Manufacturing & Engineering, Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$476,496	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
76	Florida State University Top agencies Navy (Department of the Navy)	$475,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; down 66 since Aug 2024–Jul 2025.
77	Scientific Research Corporation Top agencies DLA (Defense Logistics Agency)	$473,371	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78	Thales Defense & Security Inc. 2 awardees, including Thales Usa, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$471,544	0.1%	Rank history: not on the FY2021–FY2025 lists; up 88 since Aug 2024–Jul 2025.
79	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$467,868	0.1%	Rank history: not on the FY2021–FY2023 lists, #96 in FY2024 and #66 in FY2025; down 14 since Aug 2024–Jul 2025.
80	Unitron, LP Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$465,453	0.1%	Rank history: #99 in FY2021, not on the FY2022 list, #50 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
81	Lockheed Martin Corporation 4 awardees Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$460,801	0.1%	Rank history: not on the FY2021 list, #92 in FY2022, #77 in FY2023, not on the FY2024 list and #93 in FY2025; up 13 since Aug 2024–Jul 2025.
82	Supplyforce.com, LLC Top agencies NASA (National Aeronautics and Space Administration)	$454,483	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83	2Lyons Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$448,825	0.1%	Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #25 in FY2025; down 58 since Aug 2024–Jul 2025.
84	Northrop Grumman Systems Corporation 3 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$433,704	0.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023, #25 in FY2024 and not on the FY2025 list; down 54 since Aug 2024–Jul 2025.
85	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies Navy (Department of the Navy)	$417,637	0.1%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and not on the FY2025 list; up 57 since Aug 2024–Jul 2025.
86	Veteran Legacy LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) DOI (Department of the Interior)	$410,838	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$410,302	0.1%	Rank history: #41 in FY2021, #51 in FY2022, #60 in FY2023, #80 in FY2024 and not on the FY2025 list; up 61 since Aug 2024–Jul 2025.
88	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$405,905	0.1%	Rank history: not on the FY2021–FY2023 lists, #82 in FY2024 and not on the FY2025 list; up 341 since Aug 2024–Jul 2025.
89	Aponte Power Services LLC Top agencies Army (Department of the Army)	$403,918	0.1%	Rank history: not on the FY2021–FY2023 lists, #26 in FY2024 and not on the FY2025 list; down 20 since Aug 2024–Jul 2025.
90	L2 Aviation Solutions, LLC Top agencies Army (Department of the Army)	$396,557	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
91	Torotel, Inc. Top agencies Navy (Department of the Navy)	$392,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	ADB Safegate Americas LLC Top agencies USAF (Department of the Air Force)	$374,846	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Sargent Aerospace & Defense, LLC Top agencies Navy (Department of the Navy)	$366,774	0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Aug 2024–Jul 2025.
94	Blackstar Diversified Enterprises Limited Liability Company Top agencies DOI (Department of the Interior)	$359,091	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
95	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$355,983	0.1%	Rank history: #67 in FY2021, not on the FY2022 list, #64 in FY2023, #100 in FY2024 and not on the FY2025 list; up 60 since Aug 2024–Jul 2025.
96	BMC Software Inc. 2 awardees, including Leslie Controls, Inc. and Circor Pumps North America LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$353,413	0.1%	Rank history: not on the FY2021–FY2025 lists; up 264 since Aug 2024–Jul 2025.
97	MDF Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$349,978	0.1%	Rank history: #30 in FY2021, #49 in FY2022, #49 in FY2023, #81 in FY2024 and not on the FY2025 list; up 9 since Aug 2024–Jul 2025.
98	Coal Creek Construction, Inc. Top agencies DOE (Department of Energy)	$349,500	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	R & D Electronics, Inc. Top agencies DLA (Defense Logistics Agency)	$349,191	0.1%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and not on the FY2025 list; down 27 since Aug 2024–Jul 2025.
100	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$342,514	0.1%	Rank history: not on the FY2021 list, #61 in FY2022, not on the FY2023 list, #89 in FY2024 and #90 in FY2025; down 12 since Aug 2024–Jul 2025.

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100 of 684 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 $346 million 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 335311 contractors in Aug 2025–Jul 2026?

1. Tepco Energy Partner, Incorporated ($63.2M), 2. Vincorion LLC ($42.4M), 3. The Chugoku Electric Power Company, Incorporated ($23.8M), 4. Teledyne Technologies Incorporated ($19M), 5. Siemens Industry Inc. ($15.8M), 6. General Dynamics Corporation ($14M), 7. Tohoku Electric Power Company Incorporated ($9.58M), 8. P.a.r. Products Co ($9.06M), 9. RCT Systems, Inc. ($7.72M), 10. Triman Industries Inc. ($6.75M).

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