Top 100 Contractors in NAICS 333318: Other Commercial and Service Industry Machinery Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 333318: Other Commercial and Service Industry Machinery Manufacturing, FY2021
Creator: GovTribe

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

The top 10 won 77% of FY2021 NAICS 333318 contract dollars

Contract obligations: $1,060,663,306 Net of deobligations, by contracts coded NAICS 333318
Contractors: 738 Parent companies with an obligation
Largest contractor: The Boeing Company $218 million, 19.7% 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	The Boeing Company 2 awardees Top agencies Navy (Department of the Navy)	$217,946,374	19.7%	Rank history: #1 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; up 4 since FY2020.
2	RTX Corporation 3 awardees, including Rockwell Collins Simulation & Training Solutions LLC and Rockwell Collins, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$174,246,240	15.8%	Rank history: #3 in FY2022, #1 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since FY2020.
3	General Dynamics Corporation 5 awardees, including General Dynamics Mission Systems, Inc., General Dynamics Information Technology, Inc. and General Dynamics One Source LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$149,010,228	13.5%	Rank history: #2 in FY2022, #3 in FY2023, #4 in FY2024 and #3 in FY2025; down 2 since FY2020.
4	Lockheed Martin Corporation 5 awardees, including Lockheed Martin Global, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$116,514,351	10.5%	Rank history: #9 in FY2022, #6 in FY2023, #7 in FY2024 and #9 in FY2025; up 15 since FY2020.
5	Logistic Services International, Inc. Top agencies Army (Department of the Army)	$56,039,470	5.1%	Rank history: #13 in FY2022, #5 in FY2023, #13 in FY2024 and #4 in FY2025; up 6 since FY2020.
6	Scientific Research Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$52,873,372	4.8%	Rank history: #12 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
7	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force) GSA (General Services Administration) DLA (Defense Logistics Agency)	$31,689,502	2.9%	Rank history: #7 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
8	Xebec Government Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$27,037,658	2.4%	Rank history: #32 in FY2022, #16 in FY2023, #22 in FY2024 and #11 in FY2025; up 36 since FY2020.
9	Arotech Corporation 2 awardees, including Inter-Coastal Electronics, LLC and Faac Incorporated Top agencies Army (Department of the Army) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$15,103,674	1.4%	Rank history: #30 in FY2022, #56 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
10	Purchinex LLC Top agencies VA (Department of Veterans Affairs)	$10,995,370	1.0%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
11	Gill Group Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$10,145,233	0.9%	Rank history: #14 in FY2022, #15 in FY2023, #23 in FY2024 and #36 in FY2025; up 26 since FY2020.
12	Rockwell Collins, Inc. Top agencies Navy (Department of the Navy)	$8,175,478	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	LC Industries Inc. Top agencies GSA (General Services Administration)	$8,067,747	0.7%	Rank history: #63 in FY2022, not on the FY2023–FY2024 lists and #60 in FY2025; new, not ranked in FY2020.
14	Katadyn Desalination, LLC Top agencies Navy (Department of the Navy)	$7,857,816	0.7%	Rank history: not on the FY2022–FY2025 lists; up 47 since FY2020.
15	L3Harris Technologies, Inc. 4 awardees, including CAE USA Inc., Acron Aviation, Inc. and L3 Aviation Products, Inc. Top agencies Navy (Department of the Navy)	$7,509,317	0.7%	Rank history: #4 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2020.
16	Jardon & Howard Technologies LLC Top agencies Navy (Department of the Navy)	$6,676,998	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
17	By Light Professional It Services LLC Top agencies Army (Department of the Army)	$6,589,528	0.6%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
18	Cymstar LLC Top agencies Navy (Department of the Navy)	$6,145,000	0.6%	Rank history: not on the FY2022–FY2023 lists, #10 in FY2024 and #34 in FY2025; new, not ranked in FY2020.
19	Phillips Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$5,615,824	0.5%	Rank history: #36 in FY2022, #10 in FY2023, #14 in FY2024 and #14 in FY2025; up 21 since FY2020.
20	Aladdin Temp-Rite LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$4,760,091	0.4%	Rank history: #71 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 89 since FY2020.
21	Advanced Systems Technology Inc. Top agencies Army (Department of the Army)	$4,546,284	0.4%	Rank history: not on the FY2022 list, #45 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
22	Meggitt PLC Through Inveris Training Solutions, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) GSA (General Services Administration)	$4,542,801	0.4%	Rank history: #19 in FY2022, #20 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
23	Parker-Hannifin Corporation Top agencies Navy (Department of the Navy)	$4,244,844	0.4%	Rank history: #67 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; up 49 since FY2020.
24	Pro-Active Technologies, Inc. Top agencies Navy (Department of the Navy)	$4,198,462	0.4%	Rank history: #59 in FY2022, #33 in FY2023, #36 in FY2024 and not on the FY2025 list; up 31 since FY2020.
25	Cantel Medical Corp. Through Evoqua Water Technologies LLC Top agencies VA (Department of Veterans Affairs)	$3,507,889	0.3%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
26	Leonardo S.p.A. 2 awardees, including DRS Network & Imaging Systems LLC and Laurel Technologies Partnership Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$3,477,177	0.3%	Rank history: not on the FY2022–FY2025 lists; up 54 since FY2020.
27	Aqua-Chem, Inc. Top agencies DHS (Department of Homeland Security)	$3,435,224	0.3%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
28	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$3,409,557	0.3%	Rank history: #18 in FY2022, #11 in FY2023, #11 in FY2024 and #13 in FY2025; new, not ranked in FY2020.
29	Cubic Digital Intelligence Inc. Through Cubic Defense Applications, Inc. Top agencies Army (Department of the Army)	$3,258,722	0.3%	Rank history: #16 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
30	Dietary Equipment Incorporated Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$3,214,591	0.3%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
31	ZEL TECH Training Solutions, LLC Top agencies Army (Department of the Army)	$3,166,272	0.3%	Rank history: #28 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
32	Northrop Grumman Corporation 3 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army)	$2,813,241	0.3%	Rank history: #17 in FY2022, #13 in FY2023, #12 in FY2024 and #10 in FY2025; down 18 since FY2020.
33	Enviremedial Services, Inc. Top agencies Army (Department of the Army)	$2,764,356	0.3%	Rank history: #46 in FY2022, #19 in FY2023, #16 in FY2024 and #20 in FY2025; new, not ranked in FY2020.
34	Oshkosh Corp 4 awardees, including Oshkosh Defense LLC, Oshkosh Airport Products LLC and Pierce Manufacturing Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$2,653,163	0.2%	Rank history: #57 in FY2022, #97 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
35	Integrated Procurement Technologies Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,286,479	0.2%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; up 30 since FY2020.
36	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$2,186,209	0.2%	Rank history: #56 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; up 224 since FY2020.
37	Mississippi Welders Supply Company, Inc. Top agencies USAF (Department of the Air Force)	$1,916,002	0.2%	Rank history: #42 in FY2022 and not on the FY2023–FY2025 lists; up 22 since FY2020.
38	Veterans Healthcare Supply Solutions, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) HHS (Department of Health and Human Services)	$1,750,506	0.2%	Rank history: #98 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
39	Shen TE Enterprises, Inc. Top agencies Navy (Department of the Navy)	$1,717,962	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	Deutsche Post AG Through DHL International B.s.c. Top agencies Navy (Department of the Navy)	$1,712,250	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	Tribalco LLC Top agencies USAF (Department of the Air Force)	$1,620,410	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
42	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,554,143	0.1%	Rank history: #33 in FY2022, not on the FY2023 list, #77 in FY2024 and not on the FY2025 list; up 146 since FY2020.
43	Custom Sales & Service, Inc. Top agencies DLA (Defense Logistics Agency)	$1,440,023	0.1%	Rank history: #29 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	Steris Corporation 2 awardees, including Evoqua Water Technologies LLC Top agencies VA (Department of Veterans Affairs)	$1,434,554	0.1%	Rank history: #35 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
45	Alion Science and Technology Corporation Through HII Mission Technologies Corp Top agencies Navy (Department of the Navy)	$1,351,613	0.1%	Rank history: #26 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; up 50 since FY2020.
46	Polar King International, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy) USDA (Department of Agriculture)	$1,335,850	0.1%	Rank history: not on the FY2022 list, #48 in FY2023, #28 in FY2024 and #28 in FY2025; up 37 since FY2020.
47	ARI Phoenix Inc. Top agencies Army (Department of the Army)	$1,332,240	0.1%	Rank history: not on the FY2022–FY2025 lists; up 278 since FY2020.
48	The Edro Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,314,333	0.1%	Rank history: #39 in FY2022 and not on the FY2023–FY2025 lists; up 8 since FY2020.
49	Caracal Enterprises, LLC Top agencies Army (Department of the Army)	$1,292,497	0.1%	Rank history: not on the FY2022–FY2023 lists, #66 in FY2024 and #58 in FY2025; up 64 since FY2020.
50	Compro Computer Services, Inc. Top agencies Navy (Department of the Navy)	$1,225,411	0.1%	Rank history: not on the FY2022 list, #42 in FY2023, #32 in FY2024 and not on the FY2025 list; up 103 since FY2020.
51	Hawkins Glass Wholesalers, L.l.c Top agencies DLA (Defense Logistics Agency)	$1,209,021	0.1%	Rank history: #40 in FY2022, #23 in FY2023, #24 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
52	Mouawad Consulting as Top agencies Navy (Department of the Navy)	$1,135,284	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	Maxim Evaporators of America, LLC Top agencies Navy (Department of the Navy)	$1,040,698	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	The Columbia Group of Virginia, Inc. Through The Columbia Group Inc. Top agencies Navy (Department of the Navy)	$1,015,327	0.1%	Rank history: #69 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
55	Mobile Fixture and Equipment Company, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Army (Department of the Army)	$1,014,865	0.1%	Rank history: not on the FY2022–FY2025 lists; up 249 since FY2020.
56	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$994,958	0.1%	Rank history: not on the FY2022 list, #100 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2020.
57	Aantilia LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$979,944	0.1%	Rank history: #70 in FY2022 and not on the FY2023–FY2025 lists; up 92 since FY2020.
58	Bromine Systems Inc. Top agencies DLA (Defense Logistics Agency)	$935,815	0.1%	Rank history: #34 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
59	Ecologix Environmental Systems LLC Top agencies Army (Department of the Army)	$933,200	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	Aldevra LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$880,418	0.1%	Rank history: #80 in FY2022, #46 in FY2023, #35 in FY2024 and #17 in FY2025; up 14 since FY2020.
61	Marathon Medical Corporation Top agencies VA (Department of Veterans Affairs)	$861,747	0.1%	Rank history: #62 in FY2022, #25 in FY2023, #19 in FY2024 and #25 in FY2025; new, not ranked in FY2020.
62	Tennant Company Through Tennant Sales and Service Company Top agencies USAF (Department of the Air Force) DECA (Defense Commissary Agency) Navy (Department of the Navy)	$857,717	0.1%	Rank history: not on the FY2022 list, #50 in FY2023, #39 in FY2024 and #38 in FY2025; up 15 since FY2020.
63	Alaska Cleaning Center Top agencies Army (Department of the Army)	$833,622	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Evoqua Water Technologies LLC 4 awardees Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$825,869	0.1%	Rank history: #77 in FY2022, #28 in FY2023, #29 in FY2024 and #30 in FY2025; up 62 since FY2020.
65	GTA Containers, Inc. Top agencies DLA (Defense Logistics Agency)	$803,119	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Avantech, LLC Top agencies Navy (Department of the Navy)	$795,357	0.1%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
67	Nida Corporation Top agencies Army (Department of the Army)	$781,405	0.1%	Rank history: #44 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
68	ECI Defense Group, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$739,365	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Chef's Depot Inc. Top agencies DLA (Defense Logistics Agency)	$731,243	0.1%	Rank history: #54 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
70	Hurtvet Subcontracting, Inc. Top agencies VA (Department of Veterans Affairs)	$731,146	0.1%	Rank history: not on the FY2022–FY2025 lists; up 164 since FY2020.
71	Government Sales, LLC Top agencies DOJ (Department of Justice) Army (Department of the Army) VA (Department of Veterans Affairs)	$711,730	0.1%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; up 84 since FY2020.
72	Rockwell Collins Simulation & Training Solutions LLC Top agencies Navy (Department of the Navy)	$663,005	0.1%	Rank history: not on the FY2022–FY2025 lists; down 65 since FY2020.
73	Bravo, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$644,088	0.1%	Rank history: not on the FY2022–FY2025 lists; up 5 since FY2020.
74	Trillamed LLC Top agencies VA (Department of Veterans Affairs)	$616,690	0.1%	Rank history: #84 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; up 92 since FY2020.
75	The Phased Array Company, LLC Top agencies USAF (Department of the Air Force)	$603,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Intific Inc Through Cubic Defense Applications, Inc. Top agencies Army (Department of the Army)	$547,813	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 262 since FY2020.
77	Industrial Smoke & Mirrors, Inc. Top agencies USAF (Department of the Air Force)	$543,357	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Michael Renka Export GMBH Top agencies Army (Department of the Army)	$540,278	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	US Watermaker, Inc. Top agencies DHS (Department of Homeland Security)	$538,255	<0.1%	Rank history: not on the FY2022–FY2023 lists, #93 in FY2024 and not on the FY2025 list; up 94 since FY2020.
80	Transhield, Inc. Top agencies DLA (Defense Logistics Agency)	$531,021	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 30 since FY2020.
81	Virtra, Inc. Top agencies DOS (Department of State) USAF (Department of the Air Force)	$499,837	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 29 since FY2020.
82	Wartsila Defense Inc. Through Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$499,121	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Vrmagic Inc. Top agencies VA (Department of Veterans Affairs)	$492,138	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Koenig & Bauer AG Through Koenig & Bauer Banknote Solutions SA Top agencies Treasury (Department of the Treasury)	$486,990	<0.1%	Rank history: #5 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
85	Simigon Inc Top agencies Navy (Department of the Navy)	$476,734	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 230 since FY2020.
86	Marshall of Cambridge Aerospace Limited Top agencies Navy (Department of the Navy)	$476,103	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Aviate Enterprises, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$473,715	<0.1%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; up 298 since FY2020.
88	Hydro, Inc. Top agencies HHS (Department of Health and Human Services)	$466,049	<0.1%	Rank history: not on the FY2022 list, #55 in FY2023, #65 in FY2024 and not on the FY2025 list; up 20 since FY2020.
89	Choctaw Nation of Oklahoma Through Choctaw Defense Manufacturing LLC Top agencies DLA (Defense Logistics Agency)	$416,267	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Douglas Food Stores Inc. Top agencies DOJ (Department of Justice) DLA (Defense Logistics Agency)	$402,070	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 275 since FY2020.
91	Astin Holdings L.P. Through Lynntech Inc. Top agencies Navy (Department of the Navy)	$399,973	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 50 since FY2020.
92	OEM Laundry Parts, Llc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$399,216	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
93	Environmental Tectonics Corp Top agencies USAF (Department of the Air Force)	$387,763	<0.1%	Rank history: #90 in FY2022, #37 in FY2023, #44 in FY2024 and #41 in FY2025; up 5 since FY2020.
94	Navsim Services, Inc. Top agencies DHS (Department of Homeland Security)	$369,810	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 65 since FY2020.
95	Beacon Point Associates LLC Top agencies VA (Department of Veterans Affairs)	$367,851	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	Tiger-Vac Inc. Top agencies Navy (Department of the Navy)	$365,120	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	G.a. Braun, Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$360,617	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 77 since FY2020.
98	Clark Associates, Inc. 2 awardees, including 11400 LLC and The Webstaurant Store, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DOJ (Department of Justice)	$359,370	<0.1%	Rank history: #94 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
99	Af&S Products & Services, Inc. Top agencies VA (Department of Veterans Affairs)	$357,636	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
100	Inveris Training Solutions, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$345,344	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 738 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 $1.1 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 NAICS 333318 contractors in FY2021?

1. The Boeing Company ($218M), 2. RTX Corporation ($174M), 3. General Dynamics Corporation ($149M), 4. Lockheed Martin Corporation ($117M), 5. Logistic Services International, Inc. ($56M), 6. Scientific Research Corporation ($52.9M), 7. Theodor Wille Intertrade GMBH ($31.7M), 8. Xebec Government Services, LLC ($27M), 9. Arotech Corporation ($15.1M), 10. Purchinex LLC ($11M).

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