Top 100 Contractors in PSC 13: Ammunition and Explosives, FY2021

Name: Top 100 Contractors in PSC 13: Ammunition and Explosives, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 72% of FY2021 PSC 13 contract dollars

Contract obligations: $6,125,691,656 Net of deobligations, by contracts coded PSC 13 or a code under it
Contractors: 418 Parent companies with an obligation
Largest contractor: Northrop Grumman Corporation $883 million, 14.1% 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	Northrop Grumman Corporation 16 awardees, including Alliant Techsystems Operations LLC, Northrop Grumman Systems Corporation and Northrop Grumman Innovation Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$882,982,770	14.1%	Rank history: #1 in FY2022, #5 in FY2023, #2 in FY2024 and #2 in FY2025; up 2 since FY2020.
2	RTX Corporation 7 awardees, including Raytheon Company, Rockwell Collins Inc. and Kidde Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$786,889,105	12.6%	Rank history: #3 in FY2022, #3 in FY2023, #9 in FY2024 and #10 in FY2025; up 13 since FY2020.
3	The Boeing Company 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$760,306,353	12.2%	Rank history: #4 in FY2022, #6 in FY2023, #3 in FY2024 and #4 in FY2025; down 2 since FY2020.
4	General Dynamics Corporation 12 awardees, including General Dynamics-Ots, Inc., General Dynamics Ordnance & Tactical Systems, Inc. and Arcwood Environmental - Joplin, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$630,077,317	10.1%	Rank history: #2 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 2 since FY2020.
5	Olin Winchester LLC 3 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$437,691,285	7.0%	Rank history: #11 in FY2022, #20 in FY2023, #26 in FY2024 and #18 in FY2025; down 1 since FY2020.
6	National Presto Industries 3 awardees, including Amtec Corporation and Spectra Technologies LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$258,346,082	4.1%	Rank history: #13 in FY2022, #15 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
7	General Dynamics OTS (Wilkes Barre), LLC Top agencies Army (Department of the Army)	$205,451,134	3.3%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
8	Government of Canada Through Canadian Commercial Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$196,914,577	3.1%	Rank history: #8 in FY2022, #4 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
9	L3Harris Technologies, Inc. 4 awardees, including L3Harris Fuzing and Ordnance Systems, Inc. and L3 Technologies, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$183,297,009	2.9%	Rank history: #17 in FY2022, #23 in FY2023, #25 in FY2024 and #9 in FY2025; up 1 since FY2020.
10	Lockheed Martin Corporation 9 awardees, including Lockheed Martin Sippican, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$160,908,935	2.6%	Rank history: #31 in FY2022, #16 in FY2023, #13 in FY2024 and #14 in FY2025; up 9 since FY2020.
11	Chemring Group PLC 5 awardees, including Kilgore Flares Company LLC, Alloy Surfaces Co Inc. and Chemring Energetic Devices Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$135,201,698	2.2%	Rank history: #19 in FY2022, #28 in FY2023, #68 in FY2024 and not on the FY2025 list; down 4 since FY2020.
12	Aerojet Rocketdyne Holdings, Inc. 3 awardees, including Aerojet Rocketdyne Coleman Aerospace Inc., Aerojet Rocketdyne Inc. and Bwxt Ordnance Tennessee, Inc. Top agencies MDA (DOD Missile Defense Agency) Navy (Department of the Navy) Army (Department of the Army)	$123,149,962	2.0%	Rank history: #15 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
13	American Ordnance LLC 2 awardees Top agencies Army (Department of the Army)	$99,993,705	1.6%	Rank history: #28 in FY2022, #10 in FY2023, #17 in FY2024 and #12 in FY2025; down 8 since FY2020.
14	Saab AB Through Saab Dynamics Aktiebolag Top agencies Army (Department of the Army)	$86,126,580	1.4%	Rank history: #9 in FY2022, #21 in FY2023, #43 in FY2024 and not on the FY2025 list; down 8 since FY2020.
15	Nammo AS 3 awardees, including Nammo Perry Inc., Nammo Defense Systems Inc. and Nammo Raufoss AS Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$69,383,393	1.1%	Rank history: #7 in FY2022, #12 in FY2023, #58 in FY2024 and not on the FY2025 list; up 36 since FY2020.
16	Vista Outdoor Inc. 3 awardees, including The Kinetic Group Sales LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) DOJ (Department of Justice)	$63,242,817	1.0%	Rank history: #21 in FY2022, #22 in FY2023, #29 in FY2024 and #24 in FY2025; up 11 since FY2020.
17	Transdigm Group Incorporated 3 awardees, including Armtec Countermeasures Co and Armtec Defense Products Co. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$59,454,759	1.0%	Rank history: #24 in FY2022, #8 in FY2023, #59 in FY2024 and not on the FY2025 list; up 11 since FY2020.
18	General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$51,219,949	0.8%	Rank history: #27 in FY2022, #60 in FY2023, #85 in FY2024 and not on the FY2025 list; up 12 since FY2020.
19	Ensign-Bickford Industries Inc. Through Ensign-Bickford Aerospace & Defense Company Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$48,196,370	0.8%	Rank history: #46 in FY2022, #27 in FY2023, #34 in FY2024 and #34 in FY2025; up 26 since FY2020.
20	Superior Forge & Steel Corp Top agencies USAF (Department of the Air Force)	$46,811,081	0.7%	Rank history: not on the FY2022 list, #43 in FY2023 and not on the FY2024–FY2025 lists; up 22 since FY2020.
21	Kaman Corp Through Kaman Precision Products, LLC Top agencies USAF (Department of the Air Force)	$42,855,736	0.7%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
22	BAE Systems PLC 5 awardees, including BAE Systems Ordnance Systems Inc. and BAE Systems Land & Armaments L.P. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$41,586,873	0.7%	Rank history: #10 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2020.
23	Martin-Baker (ENGINEERING) Ltd 2 awardees, including Martin-Baker Aircraft Company Limited and Martin-Baker America Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$40,176,479	0.6%	Rank history: #23 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
24	Tower Industries Inc. Top agencies Army (Department of the Army)	$37,418,118	0.6%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
25	Global Ordnance LLC 2 awardees, including Global Military Products Inc. Top agencies Army (Department of the Army)	$33,609,748	0.5%	Rank history: #5 in FY2022, #2 in FY2023, #8 in FY2024 and not on the FY2025 list; unchanged since FY2020.
26	Security Signals, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$29,949,787	0.5%	Rank history: #52 in FY2022, #39 in FY2023, not on the FY2024 list and #46 in FY2025; up 13 since FY2020.
27	Science Applications International Corporation Top agencies Navy (Department of the Navy)	$29,829,812	0.5%	Rank history: #14 in FY2022, #24 in FY2023, #24 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
28	R. S. Means Company LLC 2 awardees, including Pacific Scientific Energetic Materials Company (California Llc) Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$27,740,914	0.4%	Rank history: #29 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
29	Day & Zimmermann Lone Star LLC Top agencies Army (Department of the Army) OSD (Office of the Secretary of Defense)	$27,664,184	0.4%	Rank history: #44 in FY2022, #11 in FY2023, #23 in FY2024 and #17 in FY2025; up 39 since FY2020.
30	Alliant Techsystems Operations LLC Top agencies Army (Department of the Army)	$24,187,438	0.4%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
31	HII Unmanned Systems, Inc. Top agencies Navy (Department of the Navy)	$21,918,975	0.4%	Rank history: #66 in FY2022, not on the FY2023 list, #99 in FY2024 and not on the FY2025 list; up 4 since FY2020.
32	Action Manufacturing Company Top agencies Army (Department of the Army)	$21,759,914	0.3%	Rank history: #20 in FY2022, #17 in FY2023, #20 in FY2024 and #21 in FY2025; unchanged since FY2020.
33	Nammo Pocal Inc. Top agencies Army (Department of the Army)	$21,560,639	0.3%	Rank history: #51 in FY2022, #34 in FY2023, #27 in FY2024 and #22 in FY2025; up 7 since FY2020.
34	Ultra Electronics Forensic Technology Inc Through Ultra Electronics Ocean Systems Inc. Top agencies Navy (Department of the Navy)	$21,100,698	0.3%	Rank history: not on the FY2022 list, #83 in FY2023, #95 in FY2024 and not on the FY2025 list; down 12 since FY2020.
35	BAE Systems Land & Armaments L.P. 3 awardees, including BAE Systems Ordnance Systems Inc. Top agencies Army (Department of the Army)	$19,134,489	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	American Rheinmetall Munition Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$18,619,566	0.3%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; down 5 since FY2020.
37	Elbit Systems Ltd 3 awardees, including IMI Systems Ltd, Elbitamerica, Inc. and Sparton Deleon Springs, LLC Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army) Navy (Department of the Navy)	$18,060,139	0.3%	Rank history: #39 in FY2022, #33 in FY2023, #62 in FY2024 and not on the FY2025 list; down 8 since FY2020.
38	IMT Defense Corp Top agencies Army (Department of the Army)	$17,229,920	0.3%	Rank history: #38 in FY2022, #7 in FY2023, #21 in FY2024 and #13 in FY2025; up 16 since FY2020.
39	Aerojet Rocketdyne Coleman Aerospace Inc. Top agencies MDA (DOD Missile Defense Agency)	$16,700,121	0.3%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
40	Black Hills Ammunition Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$15,802,470	0.3%	Rank history: #53 in FY2022, #62 in FY2023, #72 in FY2024 and #76 in FY2025; up 13 since FY2020.
41	The Entwistle Trust Through The Entwistle Company LLC Top agencies Navy (Department of the Navy)	$14,116,309	0.2%	Rank history: not on the FY2022 list, #47 in FY2023, #84 in FY2024 and not on the FY2025 list; up 50 since FY2020.
42	Raytheon Company Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$14,065,681	0.2%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
43	Mnemonics Inc. Top agencies Army (Department of the Army)	$13,948,863	0.2%	Rank history: not on the FY2022 list, #70 in FY2023 and not on the FY2024–FY2025 lists; up 104 since FY2020.
44	General Dynamics Ordnance & Tactical Systems, Inc. 2 awardees Top agencies Army (Department of the Army)	$13,869,201	0.2%	Rank history: #12 in FY2022, not on the FY2023 list, #6 in FY2024 and #69 in FY2025; down 20 since FY2020.
45	CCI Capco, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$13,006,030	0.2%	Rank history: #40 in FY2022, #49 in FY2023, #66 in FY2024 and #60 in FY2025; up 7 since FY2020.
46	UTM Limited Top agencies Army (Department of the Army)	$11,726,655	0.2%	Rank history: #48 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
47	The Day & Zimmermann Group, Inc. Through Day and Zimmermann, Incorporated Top agencies Army (Department of the Army)	$10,238,071	0.2%	Rank history: #42 in FY2022, #13 in FY2023, #19 in FY2024 and not on the FY2025 list; down 4 since FY2020.
48	Major Tool & Machine Inc. Top agencies USAF (Department of the Air Force)	$9,666,495	0.2%	Rank history: not on the FY2022–FY2023 lists, #52 in FY2024 and not on the FY2025 list; down 12 since FY2020.
49	Faxon Machining, LLC Top agencies USAF (Department of the Air Force)	$9,450,000	0.2%	Rank history: #36 in FY2022, #37 in FY2023, #39 in FY2024 and #29 in FY2025; up 17 since FY2020.
50	Envirosafe Demil LLC Top agencies Army (Department of the Army)	$8,472,705	0.1%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
51	OM Group Inc. Through Eaglepicher Technologies LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$8,175,625	0.1%	Rank history: #63 in FY2022, #61 in FY2023, #80 in FY2024 and not on the FY2025 list; up 27 since FY2020.
52	Elbitamerica, Inc. Top agencies Army (Department of the Army)	$7,759,124	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	Cobham Advanced Electronic Solutions Inc. 2 awardees, including Mission Systems Davenport Inc. Top agencies Navy (Department of the Navy)	$7,446,039	0.1%	Rank history: not on the FY2022–FY2025 lists; up 12 since FY2020.
54	Aardvark Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOI (Department of the Interior)	$6,982,989	0.1%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; up 57 since FY2020.
55	Connectec Company, Inc. Top agencies Army (Department of the Army)	$6,769,108	0.1%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
56	A2Z Supply Corp Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) WHS (DOD Washington Headquarters Service)	$6,687,233	0.1%	Rank history: #62 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
57	Rolling Hills Progress Center, Inc. Top agencies Army (Department of the Army)	$6,406,320	0.1%	Rank history: #98 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; up 41 since FY2020.
58	G.d.o., Inc. Top agencies Army (Department of the Army)	$6,242,490	0.1%	Rank history: #54 in FY2022, #38 in FY2023, not on the FY2024 list and #68 in FY2025; up 17 since FY2020.
59	Innovative Technologies International, Inc. Top agencies Army (Department of the Army)	$6,123,855	0.1%	Rank history: not on the FY2022–FY2024 lists and #78 in FY2025; new, not ranked in FY2020.
60	Flexible Concepts Inc. Top agencies Army (Department of the Army)	$5,951,461	0.1%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
61	Pyrotechnique by Grucci Inc Top agencies Army (Department of the Army)	$5,919,408	0.1%	Rank history: #49 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
62	Rdzm, LLC Top agencies Army (Department of the Army)	$5,146,937	0.1%	Rank history: #68 in FY2022, #65 in FY2023, not on the FY2024 list and #54 in FY2025; up 9 since FY2020.
63	Lakeview Forge Company Top agencies Army (Department of the Army)	$5,121,734	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Vidisco USA Inc. Top agencies USAF (Department of the Air Force)	$4,756,973	0.1%	Rank history: not on the FY2022 list, #92 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
65	Safariland LLC 3 awardees, including Defense Technology, LLC and Atlantic Tactical, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$4,411,367	0.1%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
66	High Noon Unlimited Inc. Top agencies Army (Department of the Army)	$4,390,000	0.1%	Rank history: not on the FY2022 list, #25 in FY2023, #28 in FY2024 and #49 in FY2025; new, not ranked in FY2020.
67	Hornady Manufacturing Company Top agencies DOJ (Department of Justice) Navy (Department of the Navy) DOI (Department of the Interior)	$4,372,966	0.1%	Rank history: #69 in FY2022, #56 in FY2023, #61 in FY2024 and #59 in FY2025; down 4 since FY2020.
68	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Navy (Department of the Navy)	$4,270,602	0.1%	Rank history: not on the FY2022–FY2025 lists; up 72 since FY2020.
69	Paramount Enterprises International, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$4,066,000	0.1%	Rank history: not on the FY2022 list, #19 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
70	The Entwistle Company LLC Top agencies Navy (Department of the Navy)	$3,942,367	0.1%	Rank history: not on the FY2022–FY2023 lists, #75 in FY2024 and #75 in FY2025; new, not ranked in FY2020.
71	Stratus Systems, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$3,534,282	0.1%	Rank history: #82 in FY2022, #75 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
72	UDC Usa, Inc. Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army) Navy (Department of the Navy)	$3,445,169	0.1%	Rank history: #89 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
73	Nammo Mac LLC Top agencies Navy (Department of the Navy)	$3,143,491	0.1%	Rank history: #67 in FY2022, not on the FY2023–FY2024 lists and #70 in FY2025; up 12 since FY2020.
74	Gayston Corporation Top agencies Army (Department of the Army)	$2,979,591	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 49 since FY2020.
75	Sechan Electronics Inc. Top agencies Navy (Department of the Navy)	$2,830,456	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
76	Tool Masters Inc. Top agencies Army (Department of the Army)	$2,663,560	<0.1%	Rank history: #86 in FY2022, #71 in FY2023, #90 in FY2024 and #84 in FY2025; up 32 since FY2020.
77	Ordnance Technology Service, Inc. Top agencies Navy (Department of the Navy)	$2,563,001	<0.1%	Rank history: #97 in FY2022, not on the FY2023 list, #93 in FY2024 and #74 in FY2025; up 9 since FY2020.
78	Expal USA Inc. Top agencies Army (Department of the Army)	$2,534,477	<0.1%	Rank history: not on the FY2022 list, #82 in FY2023 and not on the FY2024–FY2025 lists; up 314 since FY2020.
79	Charles F. Day & Associates, LLC Top agencies Army (Department of the Army)	$1,901,319	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
80	International Cartridge Corp Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) DOI (Department of the Interior)	$1,809,149	<0.1%	Rank history: #57 in FY2022, #77 in FY2023, #94 in FY2024 and not on the FY2025 list; up 1 since FY2020.
81	The Kinetic Group Sales LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) USSOCOM (United States Special Operations Command)	$1,766,981	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 31 since FY2020.
82	Woodlawn Manufacturing, Ltd. Top agencies Army (Department of the Army)	$1,750,420	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 176 since FY2020.
83	Fike Corporation 2 awardees, including Cartridge Actuated Devices Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,678,767	<0.1%	Rank history: #92 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
84	Noble Sales Co. Inc. Through Tactical & Survival Specialties, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) USAID (US Agency for International Development)	$1,655,436	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	R. Stresau Laboratory, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,618,864	<0.1%	Rank history: not on the FY2022–FY2023 lists, #45 in FY2024 and #62 in FY2025; down 21 since FY2020.
86	Ametek Inc. Through Ametek Ameron, LLC Top agencies Navy (Department of the Navy)	$1,511,159	<0.1%	Rank history: #81 in FY2022, not on the FY2023 list, #100 in FY2024 and not on the FY2025 list; up 32 since FY2020.
87	Graham Corp Through Barber-Nichols, LLC Top agencies Navy (Department of the Navy)	$1,501,107	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Human Technologies Corp Top agencies DOS (Department of State)	$1,483,424	<0.1%	Rank history: #61 in FY2022, #57 in FY2023, #76 in FY2024 and #73 in FY2025; up 27 since FY2020.
89	RTI Technologies, LLC 2 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,406,017	<0.1%	Rank history: #95 in FY2022, #99 in FY2023, #96 in FY2024 and #85 in FY2025; up 35 since FY2020.
90	Yoland Corporation Top agencies Army (Department of the Army)	$1,289,876	<0.1%	Rank history: not on the FY2022 list, #52 in FY2023 and not on the FY2024–FY2025 lists; up 87 since FY2020.
91	Applied Energy Technology Corp Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,220,259	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 23 since FY2020.
92	SIG Sauer Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DOI (Department of the Interior)	$1,202,250	<0.1%	Rank history: #56 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
93	Accurate Energetic Systems, LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice) Army (Department of the Army)	$1,185,999	<0.1%	Rank history: #43 in FY2022, #35 in FY2023, #47 in FY2024 and #38 in FY2025; down 20 since FY2020.
94	Specialty Cartridge Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Navy (Department of the Navy)	$1,129,426	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 25 since FY2020.
95	Machining Technologies, Inc. Top agencies Army (Department of the Army)	$1,067,280	<0.1%	Rank history: #60 in FY2022, #41 in FY2023, #57 in FY2024 and #52 in FY2025; down 33 since FY2020.
96	Martin-Baker Aircraft Company Limited Top agencies USAF (Department of the Air Force)	$1,040,761	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.
97	Robbins Metal Fab LLC Top agencies Navy (Department of the Navy)	$1,023,700	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 23 since FY2020.
98	Teledyne Technologies Incorporated 4 awardees, including Teledyne Risi, Inc. and Teledyne Flir Defense, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$920,192	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 154 since FY2020.
99	Axion Corporation Top agencies Navy (Department of the Navy)	$861,504	<0.1%	Rank history: #72 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
100	Nammo Defense Systems Inc. Top agencies Navy (Department of the Navy)	$840,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 53 since FY2020.

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100 of 418 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 13

Code	Net obligations	Largest contractor
1305 Ammunition, through 30 mm	$827,553,491	Olin Winchester LLC
1310 Ammunition, over 30 mm up to 75 mm	$332,478,645	National Presto Industries
1377 Cartridge and Propellant Actuated Devices and Components	$196,262,034	Martin-Baker (ENGINEERING) Ltd
1375 Demolition Materials	$113,018,728	Nammo AS
1395 Miscellaneous Ammunition	$56,658,759	Global Ordnance LLC
1367 Tactical Sets, Kits, and Outfits	$17,018,599	Aardvark

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 $6.25 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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 PSC 13 contractors in FY2021?

1. Northrop Grumman Corporation ($883M), 2. RTX Corporation ($787M), 3. The Boeing Company ($760M), 4. General Dynamics Corporation ($630M), 5. Olin Winchester LLC ($438M), 6. National Presto Industries ($258M), 7. General Dynamics OTS (Wilkes Barre), LLC ($205M), 8. Government of Canada ($197M), 9. L3Harris Technologies, Inc. ($183M), 10. Lockheed Martin Corporation ($161M).

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