Top 100 Contractors in NAICS 33531: Electrical Equipment Manufacturing, FY2025

Name: Top 100 Contractors in NAICS 33531: Electrical Equipment Manufacturing, FY2025
Creator: GovTribe

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

The top 10 won 34% of FY2025 NAICS 33531 contract dollars

Contract obligations: $825,373,430 Net of deobligations, by contracts coded NAICS 33531 or a code under it
Contractors: 1,571 Parent companies with an obligation
Largest contractor: Tepco Energy Partner, Incorporated $78.5 million, 9.0% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Tepco Energy Partner, Incorporated Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$78,546,847	9.0%	Rank history: #3 in FY2021, #1 in FY2022, #3 in FY2023 and #2 in FY2024; up 1 since FY2024.
2	Jo-Kell Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$33,654,398	3.8%	Rank history: #19 in FY2021, #7 in FY2022, #15 in FY2023 and #11 in FY2024; up 9 since FY2024.
3	Northrop Grumman Corporation 10 awardees, including Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$30,409,937	3.5%	Rank history: #71 in FY2021, #21 in FY2022, #25 in FY2023 and #17 in FY2024; up 14 since FY2024.
4	Yellowstone Electric Co Top agencies Army (Department of the Army)	$29,876,694	3.4%	Rank history: not on the FY2021–FY2024 lists; new.
5	PD Power Systems, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$26,250,892	3.0%	Rank history: #2 in FY2021, #12 in FY2022, #14 in FY2023 and #4 in FY2024; down 1 since FY2024.
6	The Chugoku Electric Power Company, Incorporated Top agencies Navy (Department of the Navy)	$24,655,271	2.8%	Rank history: #11 in FY2021, #4 in FY2022, #5 in FY2023 and #8 in FY2024; up 2 since FY2024.
7	L3Harris Technologies, Inc. 11 awardees, including L3 Technologies Inc., L3Harris Maritime Services Inc. and L3Harris Maritime Power & Energy Solutions, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$20,269,082	2.3%	Rank history: #6 in FY2021, #34 in FY2022, #23 in FY2023 and #5 in FY2024; down 2 since FY2024.
8	Leonardo S.p.A. 8 awardees, including DRS Naval Power Systems Inc., DRS Network & Imaging Systems LLC and DRS Training & Control Systems, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$20,000,805	2.3%	Rank history: #13 in FY2021, #11 in FY2022, #64 in FY2023 and #20 in FY2024; up 12 since FY2024.
9	Canadian Commercial Corporation Top agencies DOE (Department of Energy) Navy (Department of the Navy) Army (Department of the Army)	$15,411,344	1.8%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2024; up 43 since FY2024.
10	Haskell Corp Top agencies USAF (Department of the Air Force)	$14,199,275	1.6%	Rank history: not on the FY2021–FY2024 lists; new.
11	Kampi Components Co Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$14,172,001	1.6%	Rank history: #20 in FY2021, #28 in FY2022, #24 in FY2023 and #21 in FY2024; up 10 since FY2024.
12	Scioteq LLC 11 awardees, including Skurka Aerospace Inc., Leach International Corp and Electromech Technologies LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$12,448,256	1.4%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 9 since FY2024.
13	Electro-Miniatures Corp. Top agencies Army (Department of the Army)	$11,724,000	1.3%	Rank history: not on the FY2021–FY2024 lists; new.
14	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$10,613,351	1.2%	Rank history: #38 in FY2021, #22 in FY2022, #30 in FY2023 and #25 in FY2024; up 11 since FY2024.
15	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$10,147,617	1.2%	Rank history: #9 in FY2021, #17 in FY2022, #11 in FY2023 and #18 in FY2024; up 3 since FY2024.
16	Tohoku Electric Power Company Incorporated Top agencies USAF (Department of the Air Force)	$9,650,104	1.1%	Rank history: #18 in FY2021, #6 in FY2022, #6 in FY2023 and #13 in FY2024; down 3 since FY2024.
17	Novatio Engineering Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$9,538,159	1.1%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2024; up 17 since FY2024.
18	Essex Electro Engineers Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$9,202,506	1.1%	Rank history: #48 in FY2021, #54 in FY2022, #9 in FY2023 and #10 in FY2024; down 8 since FY2024.
19	General Electric Company 6 awardees, including GE Aviation Systems LLC and GE Grid Solutions LLC Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$8,706,611	1.0%	Rank history: #17 in FY2021, #18 in FY2022, #17 in FY2023 and #24 in FY2024; up 5 since FY2024.
20	Leach International Corp 12 awardees, including Mason Electric Co., Wyvern Technologies and Avtechtyee Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$7,650,456	0.9%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; up 6 since FY2024.
21	General Dynamics Corporation 6 awardees, including General Dynamics Land Systems Inc., General Dynamics-Ots, Inc. and Electric Boat Corporation Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$7,454,423	0.9%	Rank history: #28 in FY2021, #35 in FY2022, #67 in FY2023 and #62 in FY2024; up 41 since FY2024.
22	Hansome Energy Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,414,742	0.8%	Rank history: #47 in FY2021, #90 in FY2022, #33 in FY2023 and #12 in FY2024; down 10 since FY2024.
23	Vincorion LLC Top agencies Army (Department of the Army)	$7,158,230	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
24	Moog Inc. Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation)	$7,135,403	0.8%	Rank history: #61 in FY2021, #25 in FY2022, #36 in FY2023 and #32 in FY2024; up 8 since FY2024.
25	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$6,323,470	0.7%	Rank history: #45 in FY2021, #48 in FY2022, #31 in FY2023 and #40 in FY2024; up 15 since FY2024.
26	G & RK Consulting Associates LLC Top agencies DOE (Department of Energy)	$6,202,240	0.7%	Rank history: #22 in FY2021, #24 in FY2022, #40 in FY2023 and #71 in FY2024; up 45 since FY2024.
27	Ward Leonard CT LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$6,055,356	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
28	Jamaica Bearings Co., Inc. Top agencies DLA (Defense Logistics Agency)	$5,525,620	0.6%	Rank history: #39 in FY2021, #31 in FY2022, #37 in FY2023 and #50 in FY2024; up 22 since FY2024.
29	Phillip Cable Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$5,390,096	0.6%	Rank history: not on the FY2021 list, #85 in FY2022, #61 in FY2023 and #49 in FY2024; up 20 since FY2024.
30	Siemens Industry Inc. Top agencies USAF (Department of the Air Force)	$5,211,045	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
31	Discovery Energy, LLC Top agencies DOT (Department of Transportation) DOS (Department of State)	$5,152,709	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
32	Connectec Company, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$5,124,312	0.6%	Rank history: not on the FY2021–FY2024 lists; up 123 since FY2024.
33	American Superconductor Corp Top agencies Navy (Department of the Navy)	$4,822,952	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
34	GE Energy Power Conversion Naval Systems Inc. Top agencies Navy (Department of the Navy)	$4,576,246	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
35	Kipper Tool Company Top agencies Army (Department of the Army) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$4,509,785	0.5%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023 and not on the FY2024 list; returned.
36	Asco Power Services Inc Through Schneider Electric Usa, Inc. Top agencies DOT (Department of Transportation) NASA (National Aeronautics and Space Administration) DOE (Department of Energy)	$4,436,943	0.5%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 6 since FY2024.
37	Superior Electric Holding Group LLC Top agencies Navy (Department of the Navy)	$4,125,730	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
38	P.a.r. Products Co Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,102,548	0.5%	Rank history: not on the FY2021 list, #33 in FY2022, not on the FY2023 list and #35 in FY2024; down 3 since FY2024.
39	Lektron Inc. Top agencies Army (Department of the Army)	$3,957,341	0.5%	Rank history: #99 in FY2021, not on the FY2022 list, #89 in FY2023 and not on the FY2024 list; returned.
40	Florida State University Top agencies Navy (Department of the Navy)	$3,884,999	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
41	Howden North America Inc 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$3,244,102	0.4%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; up 34 since FY2024.
42	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$3,205,328	0.4%	Rank history: not on the FY2021–FY2024 lists; up 75 since FY2024.
43	Gemcap Components Inc. Top agencies DLA (Defense Logistics Agency)	$3,187,117	0.4%	Rank history: #49 in FY2021, #47 in FY2022, #41 in FY2023 and #45 in FY2024; up 2 since FY2024.
44	Peerless Electronics Inc. Top agencies DLA (Defense Logistics Agency)	$3,095,472	0.4%	Rank history: #68 in FY2021, #74 in FY2022, #42 in FY2023 and #48 in FY2024; up 4 since FY2024.
45	Oil States Industries, Inc. Top agencies Navy (Department of the Navy)	$2,966,854	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
46	C E Niehoff & Co Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$2,959,493	0.3%	Rank history: #40 in FY2021, not on the FY2022 list, #68 in FY2023 and not on the FY2024 list; up 64 since FY2024.
47	Richard Manufacturing Company Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$2,775,935	0.3%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 50 since FY2024.
48	Andritz (USA) Inc. Through Andritz Hydro Corp Top agencies Army (Department of the Army)	$2,716,136	0.3%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; up 31 since FY2024.
49	Dynalec Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,713,167	0.3%	Rank history: #84 in FY2021 and not on the FY2022–FY2024 lists; up 333 since FY2024.
50	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$2,416,395	0.3%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 18 since FY2024.
51	RPS Holdings, Inc. Through Rantec Power Systems Inc. Top agencies Army (Department of the Army)	$2,380,400	0.3%	Rank history: not on the FY2021 list, #56 in FY2022 and not on the FY2023–FY2024 lists; returned.
52	American Indian Health & Services Corporation 3 awardees, including Leslie Controls, Inc., Circor Naval Solutions LLC and Circor Pumps North America LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,365,346	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
53	Eldec Aerospace Corp Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,339,160	0.3%	Rank history: not on the FY2021–FY2024 lists; up 276 since FY2024.
54	Bauer, Inc. Top agencies USAF (Department of the Air Force)	$2,273,560	0.3%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and not on the FY2024 list; returned.
55	Ontic Engineering and Manufacturing Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$2,260,136	0.3%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 1 since FY2024.
56	Baker & Associates Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,252,519	0.3%	Rank history: not on the FY2021–FY2024 lists; up 51 since FY2024.
57	ACE Electronics Defense Systems, LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,234,650	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
58	Polytech Defense Spares LLC Top agencies DLA (Defense Logistics Agency)	$2,203,096	0.3%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; up 25 since FY2024.
59	U.s.a. Spares Inc. Top agencies Navy (Department of the Navy)	$2,130,690	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
60	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$2,093,758	0.2%	Rank history: not on the FY2021 list, #30 in FY2022, #52 in FY2023 and #95 in FY2024; up 35 since FY2024.
61	Veterans Electrical Group LLC Top agencies Army (Department of the Army)	$2,093,099	0.2%	Rank history: not on the FY2021–FY2024 lists; up 169 since FY2024.
62	Mavich, LLC Top agencies DLA (Defense Logistics Agency)	$2,057,435	0.2%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; down 8 since FY2024.
63	Dare Electronics Inc. Top agencies DLA (Defense Logistics Agency)	$2,002,535	0.2%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
64	Dircksen & Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$1,997,348	0.2%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and #57 in FY2024; down 7 since FY2024.
65	ECO Euro Power Co., Ltd. Top agencies Army (Department of the Army)	$1,976,095	0.2%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and #76 in FY2024; up 11 since FY2024.
66	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,973,645	0.2%	Rank history: #62 in FY2021, #63 in FY2022, #39 in FY2023 and #51 in FY2024; down 15 since FY2024.
67	KBR Wyle Services LLC Top agencies DLA (Defense Logistics Agency)	$1,948,362	0.2%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; down 28 since FY2024.
68	Lex Products, LLC Top agencies DLA (Defense Logistics Agency)	$1,838,094	0.2%	Rank history: not on the FY2021–FY2024 lists; up 198 since FY2024.
69	Mobile Electric Power Solutions, Inc. Top agencies DHS (Department of Homeland Security)	$1,837,484	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
70	Centroid, Inc. Top agencies DLA (Defense Logistics Agency)	$1,833,119	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
71	RBC Aircraft Products Inc Through Sargent Aerospace & Defense, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,809,012	0.2%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; down 13 since FY2024.
72	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,808,268	0.2%	Rank history: not on the FY2021–FY2024 lists; up 48 since FY2024.
73	RTX Corporation 11 awardees, including Raytheon Company, Collins Elbit Vision Systems, LLC and Intertrade Limited Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,804,433	0.2%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; down 45 since FY2024.
74	Marvin Engineering Co. Inc. 2 awardees, including Marvin Land Systems, Inc. and Flyer Defense, LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,774,877	0.2%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; down 73 since FY2024.
75	U.s. Pioneer, L.L.C. Top agencies DLA (Defense Logistics Agency)	$1,771,852	0.2%	Rank history: not on the FY2021 list, #81 in FY2022 and not on the FY2023–FY2024 lists; up 31 since FY2024.
76	Fischer Panda Generators, Inc. Top agencies Army (Department of the Army)	$1,762,600	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
77	Microwave Power Products, Inc. Top agencies Navy (Department of the Navy)	$1,700,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
78	2Lyons Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$1,667,855	0.2%	Rank history: not on the FY2021–FY2024 lists; up 93 since FY2024.
79	Unitedengineparts Inc. Top agencies USAID (US Agency for International Development)	$1,667,815	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
80	Koontz Electric Company, Incorporated Top agencies Army (Department of the Army)	$1,657,756	0.2%	Rank history: #27 in FY2021, #73 in FY2022, #54 in FY2023 and not on the FY2024 list; returned.
81	BAE Systems 3 awardees, including BAE Systems Land & Armaments L.P. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$1,652,345	0.2%	Rank history: not on the FY2021–FY2024 lists; up 31 since FY2024.
82	FM AF, LLC Top agencies DLA (Defense Logistics Agency)	$1,624,218	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
83	MVL USA Inc. Top agencies Army (Department of the Army)	$1,586,957	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
84	Cummins Inc. 2 awardees, including Cummins Power Generation Inc. Top agencies Army (Department of the Army)	$1,558,484	0.2%	Rank history: #1 in FY2021, #2 in FY2022, #2 in FY2023 and #14 in FY2024; down 70 since FY2024.
85	BEI Precision Systems & Space Company, Inc. Top agencies Navy (Department of the Navy)	$1,555,088	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
86	General Dynamics Motion Control LLC Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation)	$1,461,961	0.2%	Rank history: not on the FY2021–FY2024 lists; up 158 since FY2024.
87	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$1,461,402	0.2%	Rank history: #80 in FY2021, not on the FY2022–FY2023 lists and #94 in FY2024; up 7 since FY2024.
88	Empire Avionics Corp. Top agencies DLA (Defense Logistics Agency)	$1,453,800	0.2%	Rank history: not on the FY2021 list, #76 in FY2022 and not on the FY2023–FY2024 lists; up 105 since FY2024.
89	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,428,026	0.2%	Rank history: #56 in FY2021, not on the FY2022–FY2023 lists and #66 in FY2024; down 23 since FY2024.
90	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$1,418,047	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; down 1 since FY2024.
91	Heico Aerospace Corporat 4 awardees, including Seal Dynamics LLC, RH Laboratories, Inc. and Air Cost Control US, LLC Top agencies DLA (Defense Logistics Agency)	$1,414,332	0.2%	Rank history: not on the FY2021–FY2024 lists; up 132 since FY2024.
92	Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$1,408,099	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
93	Allied Defense Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,373,215	0.2%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; down 21 since FY2024.
94	Partminer Industries LLC Top agencies DLA (Defense Logistics Agency)	$1,368,318	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
95	Arctic Slope Regional Corporation 2 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,344,929	0.2%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; down 35 since FY2024.
96	TE Connectivity Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,334,754	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
97	Legacy Aircraft Services, Inc. Top agencies DLA (Defense Logistics Agency)	$1,292,847	0.1%	Rank history: not on the FY2021–FY2024 lists; up 17 since FY2024.
98	Howden USA Company 2 awardees, including Howden North America Inc. and Howden American Fan Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,278,332	0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; up 1 since FY2024.
99	Central Power Systems & Services, LLC Top agencies DLA (Defense Logistics Agency) USDA (Department of Agriculture)	$1,276,797	0.1%	Rank history: not on the FY2021–FY2024 lists; up 113 since FY2024.
100	Sensor Systems, L.L.C. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$1,273,995	0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2024 list; up 19 since FY2024.

Show 75 more

100 of 1,571 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 33531

Code	Net obligations	Largest contractor
335311 Power, Distribution, and Specialty Transformer Manufacturing	$329,902,200	Tepco Energy Partner, Incorporated
335312 Motor and Generator Manufacturing	$289,165,333	PD Power Systems, LLC
335313 Switchgear and Switchboard Apparatus Manufacturing	$122,069,655	Northrop Grumman Corporation
335314 Relay and Industrial Control Manufacturing	$84,236,242	Jo-Kell Inc.

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 $874 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. 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 33531 contractors in FY2025?

1. Tepco Energy Partner, Incorporated ($78.5M), 2. Jo-Kell Inc. ($33.7M), 3. Northrop Grumman Corporation ($30.4M), 4. Yellowstone Electric Co ($29.9M), 5. PD Power Systems, LLC ($26.3M), 6. The Chugoku Electric Power Company, Incorporated ($24.7M), 7. L3Harris Technologies, Inc. ($20.3M), 8. Leonardo S.p.A. ($20M), 9. Canadian Commercial Corporation ($15.4M), 10. Haskell Corp ($14.2M).

On GovTribe

Research every contractor on this list

Every contract, task order and IDV they hold
Their subsidiaries, teammates and competitors
Open opportunities they're positioned for
Alerts when they win new work

Try for free Login