Top 100 Contractors in NAICS 335911: Storage Battery Manufacturing, FY2023

Name: Top 100 Contractors in NAICS 335911: Storage Battery Manufacturing, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 85% of FY2023 NAICS 335911 contract dollars

Contract obligations: $161,617,986 Net of deobligations, by contracts coded NAICS 335911
Contractors: 111 Parent companies with an obligation
Largest contractor: Enersys $72.3 million, 43.0% 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	Enersys Through Enersys Energy Products Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$72,279,305	43.0%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2024 and not on the FY2025 list; unchanged since FY2022.
2	Johnson Controls Security Solutions LLC Through Clarios, LLC Top agencies DLA (Defense Logistics Agency)	$14,194,019	8.5%	Rank history: #3 in FY2021, #7 in FY2022, #2 in FY2024 and not on the FY2025 list; up 5 since FY2022.
3	Stryten Energy LLC 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$13,996,738	8.3%	Rank history: #6 in FY2021, #4 in FY2022, #7 in FY2024 and #3 in FY2025; up 1 since FY2022.
4	Showa Denko K.K. Through Fiamm Energy Technology (USA) LLC Top agencies DLA (Defense Logistics Agency)	$10,611,939	6.3%	Rank history: #23 in FY2021, #10 in FY2022, #9 in FY2024 and not on the FY2025 list; up 6 since FY2022.
5	Concorde Battery Corporation Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior)	$8,078,132	4.8%	Rank history: #7 in FY2021, #5 in FY2022, #5 in FY2024 and #6 in FY2025; unchanged since FY2022.
6	First Logistex, Inc. Top agencies DOT (Department of Transportation)	$6,793,557	4.0%	Rank history: #14 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
7	Maetec Power, LLC Top agencies DOT (Department of Transportation)	$5,879,506	3.5%	Rank history: #16 in FY2021, #13 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
8	Transdigm Group Incorporated 2 awardees, including Acme Aerospace, Inc. and Marathonnorco Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$4,078,084	2.4%	Rank history: #17 in FY2021, #11 in FY2022, #14 in FY2024 and not on the FY2025 list; up 3 since FY2022.
9	Sunpower Corporation 2 awardees, including Saft America Inc. Top agencies DLA (Defense Logistics Agency)	$3,886,040	2.3%	Rank history: #11 in FY2021, #18 in FY2022, #22 in FY2024 and not on the FY2025 list; up 9 since FY2022.
10	DRS Naval Power Systems Inc. Top agencies Navy (Department of the Navy)	$3,215,090	1.9%	Rank history: not on the FY2021 list, #37 in FY2022 and not on the FY2024–FY2025 lists; up 27 since FY2022.
11	Bren-Tronics Defense LLC Top agencies DLA (Defense Logistics Agency)	$3,078,777	1.8%	Rank history: #13 in FY2021, #20 in FY2022, #19 in FY2024 and #10 in FY2025; up 9 since FY2022.
12	Mathews Associates Inc. Top agencies DLA (Defense Logistics Agency)	$2,624,533	1.6%	Rank history: not on the FY2021 list, #32 in FY2022, #13 in FY2024 and #8 in FY2025; up 20 since FY2022.
13	Applied Power Services LLC Top agencies DOT (Department of Transportation)	$2,065,708	1.2%	Rank history: #32 in FY2021, #26 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
14	Vertiv Corporation Top agencies DOJ (Department of Justice)	$1,902,525	1.1%	Rank history: #31 in FY2021, #23 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
15	Airbus DS Military Aircraft Inc. Through Satair Usa, Inc. Top agencies DLA (Defense Logistics Agency)	$1,159,429	0.7%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2024 and not on the FY2025 list; new.
16	Teledyne Technologies Incorporated Top agencies DLA (Defense Logistics Agency)	$983,399	0.6%	Rank history: #10 in FY2021, #14 in FY2022, #8 in FY2024 and #7 in FY2025; down 2 since FY2022.
17	Wholesale Batteries, Inc. Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce) Navy (Department of the Navy)	$796,974	0.5%	Rank history: #25 in FY2021, #33 in FY2022, #18 in FY2024 and #17 in FY2025; up 16 since FY2022.
18	OM Group Inc. Through Eaglepicher Technologies LLC Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$683,888	0.4%	Rank history: #4 in FY2021, #2 in FY2022, #21 in FY2024 and not on the FY2025 list; down 16 since FY2022.
19	RTX Corporation Through Kidde Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$648,443	0.4%	Rank history: #15 in FY2021, #93 in FY2022, #32 in FY2024 and not on the FY2025 list; up 74 since FY2022.
20	Mesa Veterans Power LLC Top agencies DOT (Department of Transportation)	$632,891	0.4%	Rank history: #41 in FY2021, #21 in FY2022, #58 in FY2024 and not on the FY2025 list; up 1 since FY2022.
21	Remy Battery Co Inc. Top agencies DLA (Defense Logistics Agency)	$606,747	0.4%	Rank history: #21 in FY2021, #22 in FY2022, #11 in FY2024 and #12 in FY2025; up 1 since FY2022.
22	Battery Service Corporation Top agencies DLA (Defense Logistics Agency)	$580,130	0.3%	Rank history: #22 in FY2021, #29 in FY2022, #20 in FY2024 and #27 in FY2025; up 7 since FY2022.
23	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$536,541	0.3%	Rank history: #18 in FY2021, #27 in FY2022, not on the FY2024 list and #21 in FY2025; up 4 since FY2022.
24	Incredible Supply LLC Top agencies DHS (Department of Homeland Security)	$516,892	0.3%	Rank history: #40 in FY2021, #56 in FY2022, #17 in FY2024 and #9 in FY2025; up 32 since FY2022.
25	Edge Technology Distributors Inc 2 awardees Top agencies DLA (Defense Logistics Agency)	$290,009	0.2%	Rank history: #64 in FY2021, #46 in FY2022, #26 in FY2024 and #39 in FY2025; up 21 since FY2022.
26	Pulsepacks LLC Top agencies DLA (Defense Logistics Agency)	$238,941	0.1%	Rank history: not on the FY2021 list, #66 in FY2022, #25 in FY2024 and #30 in FY2025; up 40 since FY2022.
27	Tundra Federal LLC Top agencies DHRA (Defense Human Resources Activity)	$223,526	0.1%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and not on the FY2025 list; new.
28	Astro Digital US Inc. Top agencies Navy (Department of the Navy)	$192,000	0.1%	Rank history: #20 in FY2021, #92 in FY2022, #30 in FY2024 and not on the FY2025 list; up 64 since FY2022.
29	E W Yost Company Top agencies DLA (Defense Logistics Agency)	$178,291	0.1%	Rank history: #94 in FY2021, #47 in FY2022, #27 in FY2024 and #14 in FY2025; up 18 since FY2022.
30	LTI Datacomm, Inc. Through Nova Power Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$176,869	0.1%	Rank history: #42 in FY2021, #40 in FY2022, #40 in FY2024 and not on the FY2025 list; up 10 since FY2022.
31	Bogue Systems Inc Top agencies Navy (Department of the Navy)	$144,202	0.1%	Rank history: not on the FY2021 list, #55 in FY2022, #28 in FY2024 and not on the FY2025 list; up 24 since FY2022.
32	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency)	$120,600	0.1%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2024 and #15 in FY2025; up 70 since FY2022.
33	THALES Through Thales Defense & Security Inc. Top agencies DLA (Defense Logistics Agency)	$119,138	0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2024 and #18 in FY2025; up 171 since FY2022.
34	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$113,625	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 90 since FY2022.
35	Military Battery Systems Inc. Top agencies DLA (Defense Logistics Agency)	$112,111	0.1%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and #26 in FY2025; up 187 since FY2022.
36	Washington Foundries Inc. Top agencies DLA (Defense Logistics Agency)	$110,804	0.1%	Rank history: not on the FY2021 list, #50 in FY2022, #31 in FY2024 and #23 in FY2025; up 14 since FY2022.
37	Livewire Battery Supply, Inc. Top agencies Army (Department of the Army) Treasury (Department of the Treasury) GSA (General Services Administration)	$108,809	0.1%	Rank history: #56 in FY2021, #75 in FY2022, not on the FY2024 list and #51 in FY2025; up 38 since FY2022.
38	A.m.s. Network, LLC Top agencies DLA (Defense Logistics Agency)	$103,780	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 103 since FY2022.
39	Stationary Power Systems Inc. Top agencies DOT (Department of Transportation)	$99,996	0.1%	Rank history: #100 in FY2021, not on the FY2022 list, #29 in FY2024 and #16 in FY2025; up 96 since FY2022.
40	Gate Industries Top agencies DLA (Defense Logistics Agency)	$75,935	<0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #34 in FY2024 and not on the FY2025 list; up 54 since FY2022.
41	Melton Sales & Service 2 awardees Top agencies DLA (Defense Logistics Agency)	$75,800	<0.1%	Rank history: #58 in FY2021, not on the FY2022 list, #33 in FY2024 and #22 in FY2025; up 81 since FY2022.
42	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$70,646	<0.1%	Rank history: #53 in FY2021, #49 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
43	Battery Outlet, Inc. Top agencies DLA (Defense Logistics Agency)	$67,269	<0.1%	Rank history: #29 in FY2021, #36 in FY2022, #23 in FY2024 and #35 in FY2025; down 7 since FY2022.
44	Krydon Group, Inc. Top agencies Army (Department of the Army)	$67,177	<0.1%	Rank history: not on the FY2021 list, #63 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
45	International Television Corp 2 awardees Top agencies DLA (Defense Logistics Agency)	$66,545	<0.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2024 and #20 in FY2025; up 62 since FY2022.
46	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$65,286	<0.1%	Rank history: #51 in FY2021, #31 in FY2022, #43 in FY2024 and #31 in FY2025; down 15 since FY2022.
47	TD Dragon LLC Top agencies DOI (Department of the Interior)	$64,890	<0.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and not on the FY2025 list; up 61 since FY2022.
48	Heico Aerospace Corporat Through Seal Dynamics LLC Top agencies DLA (Defense Logistics Agency)	$62,059	<0.1%	Rank history: not on the FY2021 list, #64 in FY2022, #46 in FY2024 and #28 in FY2025; up 16 since FY2022.
49	Stratus Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$54,624	<0.1%	Rank history: #77 in FY2021, not on the FY2022 list, #44 in FY2024 and not on the FY2025 list; up 161 since FY2022.
50	Netex Sales & Production Co Top agencies DLA (Defense Logistics Agency)	$51,552	<0.1%	Rank history: #86 in FY2021, #85 in FY2022, #52 in FY2024 and #33 in FY2025; up 35 since FY2022.
51	Portable Power Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$50,556	<0.1%	Rank history: #62 in FY2021, #51 in FY2022, not on the FY2024 list and #32 in FY2025; unchanged since FY2022.
52	Advanced Products Services Inc. Top agencies DLA (Defense Logistics Agency)	$50,090	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 116 since FY2022.
53	Northeast Battery & Alternator, LLC Top agencies DOE (Department of Energy)	$46,110	<0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2024 and not on the FY2025 list; new.
54	Symmetry Resources, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$42,246	<0.1%	Rank history: #68 in FY2021, not on the FY2022 list, #45 in FY2024 and #29 in FY2025; up 181 since FY2022.
55	Shelby Industrial Supply Inc. Top agencies DOT (Department of Transportation)	$42,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 103 since FY2022.
56	Atlas American Corporation Top agencies DLA (Defense Logistics Agency)	$32,723	<0.1%	Rank history: not on the FY2021 list, #97 in FY2022, #66 in FY2024 and not on the FY2025 list; up 41 since FY2022.
57	Hytech Associates Incorporated Top agencies DLA (Defense Logistics Agency)	$31,346	<0.1%	Rank history: #30 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.
58	ESI Acquisition Corp. Through JA Moody LLC Top agencies Navy (Department of the Navy)	$30,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
59	Madison Electric Co Top agencies DLA (Defense Logistics Agency)	$27,808	<0.1%	Rank history: #74 in FY2021, #87 in FY2022, #61 in FY2024 and #45 in FY2025; up 28 since FY2022.
60	Apex Pinnacle Corp Top agencies DLA (Defense Logistics Agency)	$27,490	<0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2024 and #48 in FY2025; up 56 since FY2022.
61	Data Connect Enterprise Inc. Top agencies DLA (Defense Logistics Agency)	$26,864	<0.1%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2024 and not on the FY2025 list; up 67 since FY2022.
62	B S T Systems, Inc. Top agencies Navy (Department of the Navy)	$25,530	<0.1%	Rank history: not on the FY2021 list, #19 in FY2022, #47 in FY2024 and not on the FY2025 list; down 43 since FY2022.
63	CD & T Logistics Inc. Top agencies DOT (Department of Transportation)	$25,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	Lyntronics Inc. Top agencies DLA (Defense Logistics Agency)	$21,948	<0.1%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and #46 in FY2025; up 173 since FY2022.
65	The Battery Clinic, Inc. Top agencies DLA (Defense Logistics Agency)	$21,153	<0.1%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2024 and #41 in FY2025; up 98 since FY2022.
66	Segundo Aviation LLC Top agencies DLA (Defense Logistics Agency)	$19,200	<0.1%	Rank history: #70 in FY2021, #81 in FY2022 and not on the FY2024–FY2025 lists; up 15 since FY2022.
67	Automated Business Power, Inc. Top agencies DLA (Defense Logistics Agency)	$17,552	<0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and #38 in FY2025; up 104 since FY2022.
68	EOS Inc. Through Sidecar Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$15,905	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 77 since FY2022.
69	Alpine Power Systems Inc. Top agencies DLA (Defense Logistics Agency)	$15,840	<0.1%	Rank history: #34 in FY2021, #79 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
70	Federal Resources Supply Company Top agencies DLA (Defense Logistics Agency)	$14,643	<0.1%	Rank history: not on the FY2021 list, #98 in FY2022 and not on the FY2024–FY2025 lists; up 28 since FY2022.
71	Miraj Corp Top agencies DLA (Defense Logistics Agency)	$13,343	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 82 since FY2022.
72	E D P Environments, Inc. Top agencies DOI (Department of the Interior)	$13,115	<0.1%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2024 and not on the FY2025 list; up 80 since FY2022.
73	MCO Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$11,795	<0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and not on the FY2025 list; up 76 since FY2022.
74	Albireo Energy LLC Through Alabama Controls, Inc. Top agencies DOS (Department of State)	$10,745	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 66 since FY2022.
75	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$10,122	<0.1%	Rank history: #38 in FY2021, #52 in FY2022 and not on the FY2024–FY2025 lists; down 23 since FY2022.
76	Hansome Energy Systems Inc. Top agencies DLA (Defense Logistics Agency)	$8,627	<0.1%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2024 and #47 in FY2025; up 109 since FY2022.
77	R & L Voss LLC Top agencies Navy (Department of the Navy)	$8,187	<0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2024 and not on the FY2025 list; new.
78	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$8,001	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 145 since FY2022.
79	United Power & Battery Corporation Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$7,900	<0.1%	Rank history: #49 in FY2021, not on the FY2022 list, #64 in FY2024 and #43 in FY2025; up 39 since FY2022.
80	Johnston Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$7,523	<0.1%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2024 and #42 in FY2025; up 148 since FY2022.
81	Pacific Maritime Industries Corp. Top agencies Navy (Department of the Navy)	$7,500	<0.1%	Rank history: not on the FY2021 list, #39 in FY2022 and not on the FY2024–FY2025 lists; down 42 since FY2022.
82	VSE Corporation Top agencies DLA (Defense Logistics Agency)	$6,746	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 176 since FY2022.
83	Lotususa, Inc. Top agencies Army (Department of the Army)	$5,263	<0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and #44 in FY2025; up 160 since FY2022.
84	Remier Distributing Inc. Top agencies Commerce (Department of Commerce)	$5,026	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #40 in FY2025; new.
85	Integer Holdings Corporation Through Greatbatch Ltd Top agencies Commerce (Department of Commerce)	$4,791	<0.1%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2024 and #36 in FY2025; new.
86	United Sales Assoc Inc. Top agencies DOE (Department of Energy)	$4,539	<0.1%	Rank history: #63 in FY2021, #54 in FY2022 and not on the FY2024–FY2025 lists; down 32 since FY2022.
87	Gulf Pioneer Company L.L.C. Top agencies Army (Department of the Army)	$4,243	<0.1%	Rank history: not on the FY2021 list, #53 in FY2022 and not on the FY2024–FY2025 lists; down 34 since FY2022.
88	Aj's Power Source, Inc. Top agencies DLA (Defense Logistics Agency)	$4,100	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 136 since FY2022.
89	General Dynamics Corporation Through General Dynamics Land Systems - Canada Corporation Top agencies DLA (Defense Logistics Agency)	$3,815	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 22 since FY2022.
90	The Entwistle Trust Through The Entwistle Company LLC Top agencies DLA (Defense Logistics Agency)	$3,723	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 205 since FY2022.
91	Master International Corporation Top agencies DLA (Defense Logistics Agency)	$3,721	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
92	Team One Repair, Inc. Top agencies DLA (Defense Logistics Agency)	$3,444	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	Equipment Parts Sales Top agencies DLA (Defense Logistics Agency)	$3,255	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 143 since FY2022.
94	Electronic Connections International LLC Top agencies DLA (Defense Logistics Agency)	$2,767	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 49 since FY2022.
95	Greene Metal Products, Inc. Top agencies DLA (Defense Logistics Agency)	$2,748	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 14 since FY2022.
96	Shore Power Inc. Top agencies DLA (Defense Logistics Agency)	$2,378	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Optivor Technologies, LLC Top agencies NRC (Nuclear Regulatory Commission)	$2,242	<0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2024 and #50 in FY2025; up 136 since FY2022.
98	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$2,233	<0.1%	Rank history: #99 in FY2021, not on the FY2022 list, #68 in FY2024 and not on the FY2025 list; up 77 since FY2022.
99	Gentex Corporation 2 awardees Top agencies DLA (Defense Logistics Agency)	$2,078	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 165 since FY2022.
100	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$1,364	<0.1%	Rank history: #91 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 152 since FY2022.

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100 of 111 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 $168 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 335911 contractors in FY2023?

1. Enersys ($72.3M), 2. Johnson Controls Security Solutions LLC ($14.2M), 3. Stryten Energy LLC ($14M), 4. Showa Denko K.K. ($10.6M), 5. Concorde Battery Corporation ($8.08M), 6. First Logistex, Inc. ($6.79M), 7. Maetec Power, LLC ($5.88M), 8. Transdigm Group Incorporated ($4.08M), 9. Sunpower Corporation ($3.89M), 10. DRS Naval Power Systems Inc. ($3.22M).

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