Top 100 Contractors in NAICS 33591: Battery Manufacturing, FY2024

Name: Top 100 Contractors in NAICS 33591: Battery Manufacturing, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 63% of FY2024 NAICS 33591 contract dollars

Contract obligations: $286,176,171 Net of deobligations, by contracts coded NAICS 33591 or a code under it
Contractors: 460 Parent companies with an obligation
Largest contractor: Enersys Energy Products Inc. $46.6 million, 15.4% 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 Energy Products Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$46,551,380	15.4%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
2	Eaglepicher Technologies LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$35,629,085	11.8%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2025; new.
3	Eastern Carolina Vocational Center Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) GSA (General Services Administration)	$25,664,271	8.5%	Rank history: #3 in FY2021, #2 in FY2022, #2 in FY2023 and #3 in FY2025; down 1 since FY2023.
4	Enersys Through Enersys Energy Products Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$22,857,625	7.6%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and not on the FY2025 list; down 3 since FY2023.
5	Stryten Energy LLC 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$15,643,554	5.2%	Rank history: #7 in FY2021, #5 in FY2022, #4 in FY2023 and #6 in FY2025; down 1 since FY2023.
6	Fiamm Energy Technology (USA) LLC Top agencies DLA (Defense Logistics Agency)	$11,711,831	3.9%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
7	Concorde Battery Corporation Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Navy (Department of the Navy)	$9,524,865	3.1%	Rank history: #8 in FY2021, #6 in FY2022, #11 in FY2023 and #10 in FY2025; up 4 since FY2023.
8	Johnson Controls Security Solutions LLC Through Clarios, LLC Top agencies DLA (Defense Logistics Agency)	$9,083,423	3.0%	Rank history: #5 in FY2021, #8 in FY2022, #6 in FY2023 and not on the FY2025 list; down 2 since FY2023.
9	Hutchinson Corporation 2 awardees, including Saft America Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$6,451,765	2.1%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2025; new.
10	Angel Holdings LLC Through C&D Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$6,387,290	2.1%	Rank history: #9 in FY2021, #10 in FY2022, #12 in FY2023 and not on the FY2025 list; up 2 since FY2023.
11	Mathews Associates Inc. Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation) DHS (Department of Homeland Security)	$5,903,669	2.0%	Rank history: #46 in FY2021, #23 in FY2022, #9 in FY2023 and #14 in FY2025; down 2 since FY2023.
12	Bren-Tronics Defense LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$5,185,810	1.7%	Rank history: #13 in FY2021, #14 in FY2022, #7 in FY2023 and #7 in FY2025; down 5 since FY2023.
13	Clarios, LLC Top agencies DLA (Defense Logistics Agency)	$4,678,387	1.5%	Rank history: #59 in FY2021, #90 in FY2022, not on the FY2023 list and #5 in FY2025; returned.
14	Framaco-Bozdemir Joint Venture LLC Top agencies DOS (Department of State)	$3,774,796	1.2%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; new.
15	Aesir Technologies Inc. Top agencies Navy (Department of the Navy)	$3,493,566	1.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 87 since FY2023.
16	Remy Battery Co Inc. Top agencies DLA (Defense Logistics Agency)	$3,022,766	1.0%	Rank history: #25 in FY2021, #27 in FY2022, #35 in FY2023 and #9 in FY2025; up 19 since FY2023.
17	Sunpower Corporation 4 awardees, including Saft America Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$3,006,524	1.0%	Rank history: #11 in FY2021, #11 in FY2022, #5 in FY2023 and not on the FY2025 list; down 12 since FY2023.
18	Teledyne Technologies Incorporated 3 awardees, including Teledyne Instruments, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,905,511	1.0%	Rank history: #14 in FY2021, #18 in FY2022, #27 in FY2023 and #27 in FY2025; up 9 since FY2023.
19	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$2,625,958	0.9%	Rank history: #33 in FY2021, #22 in FY2022, #21 in FY2023 and #55 in FY2025; up 2 since FY2023.
20	First Logistex, Inc. Top agencies DOT (Department of Transportation)	$2,617,461	0.9%	Rank history: #17 in FY2021, #20 in FY2022, #10 in FY2023 and #26 in FY2025; down 10 since FY2023.
21	Energizer Holdings, Inc. 2 awardees, including Energizer, LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$2,467,547	0.8%	Rank history: #12 in FY2021, #12 in FY2022, #17 in FY2023 and #16 in FY2025; down 4 since FY2023.
22	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$2,050,915	0.7%	Rank history: #16 in FY2021, #31 in FY2022, #28 in FY2023 and #24 in FY2025; up 6 since FY2023.
23	Showa Denko K.K. Through Fiamm Energy Technology (USA) LLC Top agencies DLA (Defense Logistics Agency)	$2,044,044	0.7%	Rank history: #26 in FY2021, #13 in FY2022, #8 in FY2023 and not on the FY2025 list; down 15 since FY2023.
24	Diazyme Laboratories Inc. Through General Atomics Top agencies USAF (Department of the Air Force)	$1,991,513	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
25	B S T Systems, Inc. Top agencies Navy (Department of the Navy)	$1,961,849	0.6%	Rank history: #45 in FY2021, #24 in FY2022, #13 in FY2023 and #18 in FY2025; down 12 since FY2023.
26	American Mergers & Manufacturing International LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,790,859	0.6%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and not on the FY2025 list; up 26 since FY2023.
27	Scioteq LLC Through Acme Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$1,759,810	0.6%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
28	Airbus DS Military Aircraft Inc. Through Satair Usa, Inc. Top agencies DLA (Defense Logistics Agency)	$1,502,868	0.5%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023 and not on the FY2025 list; up 1 since FY2023.
29	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$1,498,849	0.5%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
30	Energizer LLC Top agencies VA (Department of Veterans Affairs)	$1,452,172	0.5%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and not on the FY2025 list; down 6 since FY2023.
31	Solar Stik Inc. Top agencies Navy (Department of the Navy)	$1,265,438	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
32	Ultralife Corp. Top agencies DLA (Defense Logistics Agency)	$1,232,711	0.4%	Rank history: #39 in FY2021, #59 in FY2022, #68 in FY2023 and #15 in FY2025; up 36 since FY2023.
33	Battery Service Corporation Top agencies DLA (Defense Logistics Agency)	$1,098,491	0.4%	Rank history: #23 in FY2021, #32 in FY2022, #30 in FY2023 and #34 in FY2025; down 3 since FY2023.
34	Hitech Glass, LLC Top agencies DLA (Defense Logistics Agency)	$1,088,737	0.4%	Rank history: #10 in FY2021, #4 in FY2022, not on the FY2023 list and #11 in FY2025; up 69 since FY2023.
35	OM Group Inc. Through Eaglepicher Technologies LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$1,075,975	0.4%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023 and not on the FY2025 list; down 32 since FY2023.
36	Applied Power Services LLC Top agencies DOT (Department of Transportation)	$1,028,500	0.3%	Rank history: #36 in FY2021, #33 in FY2022, #18 in FY2023 and #35 in FY2025; down 18 since FY2023.
37	C&D Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$1,013,650	0.3%	Rank history: #79 in FY2021, #42 in FY2022, not on the FY2023 list and #8 in FY2025; returned.
38	Wholesale Batteries, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Commerce (Department of Commerce)	$995,298	0.3%	Rank history: #28 in FY2021, #40 in FY2022, #31 in FY2023 and #51 in FY2025; down 7 since FY2023.
39	Transdigm Group Incorporated 2 awardees, including Acme Aerospace, Inc. and Marathonnorco Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$943,104	0.3%	Rank history: #20 in FY2021, #15 in FY2022, #15 in FY2023 and not on the FY2025 list; down 24 since FY2023.
40	Jamison Professional Services LLC Top agencies DLA (Defense Logistics Agency)	$901,502	0.3%	Rank history: #29 in FY2021, #16 in FY2022, not on the FY2023 list and #13 in FY2025; up 81 since FY2023.
41	Mainstream Engineering Corp Top agencies DLA (Defense Logistics Agency)	$883,698	0.3%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and not on the FY2025 list; up 6 since FY2023.
42	Marathonnorco Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$873,015	0.3%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2025; new.
43	THALES Through Thales Defense & Security Inc. Top agencies DLA (Defense Logistics Agency)	$778,345	0.3%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #20 in FY2025; up 26 since FY2023.
44	Hytech Associates Incorporated Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$759,369	0.3%	Rank history: #34 in FY2021, #51 in FY2022, #39 in FY2023 and #33 in FY2025; down 5 since FY2023.
45	MVP Network Consulting LLC Top agencies DOJ (Department of Justice)	$720,587	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
46	Satair Usa, Inc. Top agencies DLA (Defense Logistics Agency)	$699,783	0.2%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2025; new.
47	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$672,100	0.2%	Rank history: #24 in FY2021, #25 in FY2022, #32 in FY2023 and #40 in FY2025; down 15 since FY2023.
48	Incredible Supply LLC Top agencies DHS (Department of Homeland Security)	$622,139	0.2%	Rank history: #52 in FY2021, #76 in FY2022, #43 in FY2023 and #39 in FY2025; down 5 since FY2023.
49	Battery Outlet, Inc. Top agencies DLA (Defense Logistics Agency)	$588,294	0.2%	Rank history: #32 in FY2021, #43 in FY2022, #34 in FY2023 and #41 in FY2025; down 15 since FY2023.
50	Leonardo S.p.A. 3 awardees, including Pivotal Power Inc., DRS Network & Imaging Systems LLC and DRS Technologies Canada Ltd. Top agencies DLA (Defense Logistics Agency)	$534,260	0.2%	Rank history: #6 in FY2021, #9 in FY2022, #51 in FY2023 and #37 in FY2025; up 1 since FY2023.
51	Barry Williams Electric Inc. Top agencies DOT (Department of Transportation)	$487,608	0.2%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
52	MJR Associates LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$477,948	0.2%	Rank history: #62 in FY2021, #85 in FY2022, not on the FY2023 list and not on the FY2025 list; up 86 since FY2023.
53	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$477,450	0.2%	Rank history: #50 in FY2021, #34 in FY2022, #26 in FY2023 and #42 in FY2025; down 27 since FY2023.
54	Magnevolt Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$477,096	0.2%	Rank history: #43 in FY2021, #38 in FY2022, #66 in FY2023 and not on the FY2025 list; up 12 since FY2023.
55	Hydrospace Group Inc. Top agencies Navy (Department of the Navy)	$455,000	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
56	United Sales Assoc Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) DOE (Department of Energy)	$447,373	0.1%	Rank history: #58 in FY2021, #73 in FY2022, #49 in FY2023 and #48 in FY2025; down 7 since FY2023.
57	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$426,248	0.1%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
58	Washington Foundries Inc. Top agencies DLA (Defense Logistics Agency)	$425,894	0.1%	Rank history: not on the FY2021 list, #65 in FY2022, #33 in FY2023 and #44 in FY2025; down 25 since FY2023.
59	Alpine Power Systems Inc. 2 awardees Top agencies DOE (Department of Energy) DOI (Department of the Interior) DLA (Defense Logistics Agency)	$410,650	0.1%	Rank history: #41 in FY2021, #98 in FY2022, #58 in FY2023 and #98 in FY2025; down 1 since FY2023.
60	Data Connect Enterprise Inc. Top agencies DLA (Defense Logistics Agency)	$399,542	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 47 since FY2023.
61	Battery Specialties, Inc. Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$398,524	0.1%	Rank history: #44 in FY2021, #44 in FY2022, not on the FY2023 list and #30 in FY2025; up 66 since FY2023.
62	LD Power Inc. Top agencies DOT (Department of Transportation)	$396,932	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and #31 in FY2025; up 24 since FY2023.
63	EIC Laboratories, Inc. Top agencies USAF (Department of the Air Force)	$372,200	0.1%	Rank history: #42 in FY2021, #50 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
64	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$350,181	0.1%	Rank history: #66 in FY2021, #37 in FY2022, #36 in FY2023 and #50 in FY2025; down 28 since FY2023.
65	Edge Technology Distributors Inc Top agencies DLA (Defense Logistics Agency)	$343,602	0.1%	Rank history: #77 in FY2021, #58 in FY2022, #41 in FY2023 and #54 in FY2025; down 24 since FY2023.
66	Military Battery Systems Inc. Top agencies DLA (Defense Logistics Agency)	$320,734	0.1%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and #52 in FY2025; down 12 since FY2023.
67	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$318,638	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 45 since FY2023.
68	Lyntronics Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$313,226	0.1%	Rank history: not on the FY2021 list, #80 in FY2022, #56 in FY2023 and not on the FY2025 list; down 12 since FY2023.
69	Advanced Products Services Inc. Top agencies DLA (Defense Logistics Agency)	$293,915	0.1%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023 and #91 in FY2025; down 24 since FY2023.
70	Pulsepacks LLC Top agencies DLA (Defense Logistics Agency)	$276,817	0.1%	Rank history: not on the FY2021 list, #71 in FY2022, #59 in FY2023 and #82 in FY2025; down 11 since FY2023.
71	Southern Cross Aviation, LLC Top agencies DLA (Defense Logistics Agency)	$272,912	0.1%	Rank history: #76 in FY2021, not on the FY2022 list, #82 in FY2023 and #99 in FY2025; up 11 since FY2023.
72	Quantico Tactical Incorporated Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$251,069	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 178 since FY2023.
73	Tundra Federal LLC Top agencies DHRA (Defense Human Resources Activity)	$237,060	0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and not on the FY2025 list; down 6 since FY2023.
74	FSR Consulting LLC Top agencies Army (Department of the Army)	$230,363	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
75	International Television Corp Top agencies DLA (Defense Logistics Agency)	$218,051	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and #71 in FY2025; up 17 since FY2023.
76	Am General LLC Top agencies DLA (Defense Logistics Agency)	$216,928	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
77	Totex Manufacturing Inc. Top agencies Army (Department of the Army)	$211,806	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	Stationary Power Systems Inc. Top agencies DOT (Department of Transportation) Commerce (Department of Commerce)	$210,677	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and #92 in FY2025; up 22 since FY2023.
79	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) DOJ (Department of Justice)	$210,386	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
80	Always On Ups Systems Canada Inc. Top agencies Navy (Department of the Navy)	$208,056	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 30 since FY2023.
81	Veterans Serving America LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$200,897	0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and #90 in FY2025; down 3 since FY2023.
82	Sajjad, Zainab S. Top agencies DLA (Defense Logistics Agency)	$196,569	0.1%	Rank history: #99 in FY2021, not on the FY2022–FY2023 lists and #57 in FY2025; up 37 since FY2023.
83	Gen Aspire LLC Top agencies Navy (Department of the Navy)	$194,292	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 136 since FY2023.
84	E W Yost Company Top agencies DLA (Defense Logistics Agency)	$182,748	0.1%	Rank history: not on the FY2021 list, #61 in FY2022, #77 in FY2023 and #85 in FY2025; down 7 since FY2023.
85	Kratos Unmanned Aerial Systems, Inc. Top agencies Navy (Department of the Navy)	$182,237	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
86	Fed Con LLC Top agencies DLA (Defense Logistics Agency)	$180,527	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Airtronics, LLC Top agencies DLA (Defense Logistics Agency)	$176,764	0.1%	Rank history: #71 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 14 since FY2023.
88	Southwest Electronic Energy Corporation Top agencies USAF (Department of the Air Force)	$175,500	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
89	Dynalec Corporation Top agencies DLA (Defense Logistics Agency)	$172,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and #76 in FY2025; down 25 since FY2023.
90	Bogue Systems Inc Top agencies Navy (Department of the Navy)	$171,387	0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #85 in FY2023 and not on the FY2025 list; down 5 since FY2023.
91	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$168,276	0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2025; up 118 since FY2023.
92	Power Products Unlimited, LLC Top agencies DLA (Defense Logistics Agency)	$160,288	0.1%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2023 and not on the FY2025 list; down 42 since FY2023.
93	Integrated Power Systems, Inc. Top agencies Navy (Department of the Navy)	$156,197	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Thermal Electronics, Inc. Top agencies USAF (Department of the Air Force)	$155,100	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Emcor Group Inc. Through Dynalec Corporation Top agencies DLA (Defense Logistics Agency)	$146,150	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$145,779	<0.1%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2023 and not on the FY2025 list; down 71 since FY2023.
97	Krydon Group, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$143,794	<0.1%	Rank history: not on the FY2021 list, #72 in FY2022, #65 in FY2023 and #63 in FY2025; down 32 since FY2023.
98	Melton Sales & Service Top agencies DLA (Defense Logistics Agency)	$143,584	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 15 since FY2023.
99	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$143,497	<0.1%	Rank history: #65 in FY2021, #64 in FY2022, #84 in FY2023 and #86 in FY2025; down 15 since FY2023.
100	Jasmine Store Company Top agencies Army (Department of the Army)	$142,622	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.

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100 of 460 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 33591

Code	Net obligations	Largest contractor
335910 Battery Manufacturing	$148,014,900	Enersys Energy Products 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 $302 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 33591 contractors in FY2024?

1. Enersys Energy Products Inc. ($46.6M), 2. Eaglepicher Technologies LLC ($35.6M), 3. Eastern Carolina Vocational Center Inc. ($25.7M), 4. Enersys ($22.9M), 5. Stryten Energy LLC ($15.6M), 6. Fiamm Energy Technology (USA) LLC ($11.7M), 7. Concorde Battery Corporation ($9.52M), 8. Johnson Controls Security Solutions LLC ($9.08M), 9. Hutchinson Corporation ($6.45M), 10. Angel Holdings LLC ($6.39M).

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