Top 100 Contractors in NAICS 611512: Flight Training, FY2021

Name: Top 100 Contractors in NAICS 611512: Flight Training, FY2021
Creator: GovTribe

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

The top 10 won 63% of FY2021 NAICS 611512 contract dollars

Contract obligations: $785,800,833 Net of deobligations, by contracts coded NAICS 611512
Contractors: 120 Parent companies with an obligation
Largest contractor: CAE Inc. $76.1 million, 9.2% 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	CAE Inc. 8 awardees, including CAE Usa, Inc., CAE USA Mission Solutions Inc. and CAE Simuflite, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$76,081,689	9.2%	Rank history: #2 in FY2022, #1 in FY2023, #6 in FY2024 and #29 in FY2025; up 2 since FY2020.
2	Amentum Services, Inc. Top agencies Army (Department of the Army)	$74,336,945	9.0%	Rank history: #3 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
3	Draken UK Bidco Limited 2 awardees, including Draken International, LLC and FR Aviation Limited Top agencies USAF (Department of the Air Force)	$72,647,250	8.8%	Rank history: #7 in FY2022, #8 in FY2023, #11 in FY2024 and #6 in FY2025; down 1 since FY2020.
4	Airborne Tactical Advantage Co LLC Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$67,568,414	8.2%	Rank history: #1 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
5	Crew Training International, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOT (Department of Transportation)	$61,495,094	7.4%	Rank history: #8 in FY2022, not on the FY2023 list, #12 in FY2024 and #18 in FY2025; down 1 since FY2020.
6	L3Harris Technologies, Inc. 5 awardees, including CAE USA Inc. and L3 Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHS (Department of Homeland Security)	$43,704,710	5.3%	Rank history: #10 in FY2022, #5 in FY2023, #9 in FY2024 and #82 in FY2025; down 1 since FY2020.
7	Berkshire Hathaway Inc. 2 awardees, including Flightsafety International Inc. and Flightsafety Defense Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$43,301,734	5.2%	Rank history: #5 in FY2022, #2 in FY2023, #7 in FY2024 and not on the FY2025 list; unchanged since FY2020.
8	Kbr, Inc. 4 awardees, including Kord Technologies, LLC and KBR Wyle Services, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$31,023,140	3.8%	Rank history: #24 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2020.
9	Pinnacle Solutions, LLC Top agencies Army (Department of the Army)	$24,641,618	3.0%	Rank history: #14 in FY2022, #15 in FY2023, #16 in FY2024 and not on the FY2025 list; down 1 since FY2020.
10	Delaware Resource Group of Oklahoma LLC Top agencies USAF (Department of the Air Force)	$23,495,497	2.8%	Rank history: #17 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
11	International Development & Resources, Inc. Top agencies USSOCOM (United States Special Operations Command)	$23,048,103	2.8%	Rank history: #9 in FY2022, #46 in FY2023, #67 in FY2024 and #12 in FY2025; down 1 since FY2020.
12	The Rockhill Group. Inc. Top agencies USAF (Department of the Air Force)	$18,980,826	2.3%	Rank history: #15 in FY2022, #12 in FY2023, #19 in FY2024 and #19 in FY2025; up 2 since FY2020.
13	Tactical Air Support, Inc. Top agencies USAF (Department of the Air Force)	$17,510,553	2.1%	Rank history: #16 in FY2022, #6 in FY2023, #3 in FY2024 and #5 in FY2025; down 1 since FY2020.
14	Lockheed Martin Corporation 2 awardees Top agencies USAF (Department of the Air Force)	$16,303,352	2.0%	Rank history: #29 in FY2022, #26 in FY2023, #13 in FY2024 and #2 in FY2025; up 12 since FY2020.
15	Allen Corporation of America, Inc. Top agencies DOT (Department of Transportation)	$13,337,020	1.6%	Rank history: #22 in FY2022, #16 in FY2023, #24 in FY2024 and #21 in FY2025; up 10 since FY2020.
16	Avix-Bgi JV LLC Top agencies USAF (Department of the Air Force)	$13,294,764	1.6%	Rank history: #20 in FY2022, #18 in FY2023, #17 in FY2024 and #33 in FY2025; up 5 since FY2020.
17	Aaski Technology Inc. 3 awardees, including North American Surveillance Systems, Inc. Top agencies USAF (Department of the Air Force)	$13,113,624	1.6%	Rank history: #23 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
18	Sierra Nevada Company, LLC Top agencies USAF (Department of the Air Force)	$11,827,051	1.4%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
19	Sonoran Technology & Professional Services LLC Top agencies USAF (Department of the Air Force)	$11,525,386	1.4%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
20	Blue Air Training Corp Top agencies USAF (Department of the Air Force)	$11,305,554	1.4%	Rank history: #13 in FY2022, #13 in FY2023, #29 in FY2024 and #13 in FY2025; down 2 since FY2020.
21	BGI LLC Top agencies USAF (Department of the Air Force)	$10,593,755	1.3%	Rank history: #34 in FY2022, #93 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
22	Metrea Special Aerospace, Vertical Applications LLC Top agencies Army (Department of the Army)	$10,250,514	1.2%	Rank history: #25 in FY2022, #22 in FY2023, not on the FY2024 list and #32 in FY2025; down 3 since FY2020.
23	Resicum International LLC Top agencies Army (Department of the Army)	$9,336,945	1.1%	Rank history: #21 in FY2022, #23 in FY2023, #10 in FY2024 and #15 in FY2025; down 1 since FY2020.
24	Advanced Concepts Enterprises, Inc. Top agencies USAF (Department of the Air Force)	$7,713,757	0.9%	Rank history: #27 in FY2022, #25 in FY2023, #28 in FY2024 and #26 in FY2025; up 34 since FY2020.
25	Spectre Pursuit Group LLC Top agencies USAF (Department of the Air Force)	$6,582,745	0.8%	Rank history: #31 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
26	Calspan Corporation 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOT (Department of Transportation)	$6,419,952	0.8%	Rank history: #33 in FY2022, #31 in FY2023, #37 in FY2024 and #30 in FY2025; up 15 since FY2020.
27	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force)	$6,329,157	0.8%	Rank history: #28 in FY2022, not on the FY2023–FY2024 lists and #42 in FY2025; new, not ranked in FY2020.
28	Milsup LLC Top agencies USAF (Department of the Air Force)	$6,163,249	0.7%	Rank history: #18 in FY2022, #21 in FY2023, #22 in FY2024 and #28 in FY2025; new, not ranked in FY2020.
29	Metro Accounting & Professional Services, LLC Through Saguaro Business Solutions LLC Top agencies USAF (Department of the Air Force)	$5,054,830	0.6%	Rank history: #12 in FY2022, #17 in FY2023, #85 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
30	Skywarrior Flight Training Inc. Top agencies Navy (Department of the Navy)	$4,831,553	0.6%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
31	Oscar Deuce LLC Top agencies USAF (Department of the Air Force)	$4,670,898	0.6%	Rank history: #42 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
32	Air Center Helicopters, Inc. Top agencies USAF (Department of the Air Force)	$4,000,298	0.5%	Rank history: #32 in FY2022, #29 in FY2023, #31 in FY2024 and not on the FY2025 list; up 11 since FY2020.
33	RTX Corporation 2 awardees, including Raytheon Company Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$3,445,918	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	The Boeing Company 3 awardees, including Insitu, Inc. and Boeing US Training and Flight Services L.L.C. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOT (Department of Transportation)	$3,280,168	0.4%	Rank history: #38 in FY2022, #30 in FY2023, #39 in FY2024 and #38 in FY2025; up 56 since FY2020.
35	National Test Pilot School Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) Navy (Department of the Navy)	$2,871,340	0.3%	Rank history: #37 in FY2022, #33 in FY2023, #40 in FY2024 and #35 in FY2025; up 16 since FY2020.
36	Macair Aviation LLC Top agencies USAF (Department of the Air Force)	$2,733,760	0.3%	Rank history: not on the FY2022–FY2024 lists and #39 in FY2025; up 4 since FY2020.
37	SJ Innovations LLC Top agencies DOT (Department of Transportation)	$2,295,665	0.3%	Rank history: #39 in FY2022, #39 in FY2023, #43 in FY2024 and #58 in FY2025; up 11 since FY2020.
38	Helistream Inc. Top agencies DHS (Department of Homeland Security)	$2,203,717	0.3%	Rank history: #47 in FY2022, #40 in FY2023, #48 in FY2024 and #50 in FY2025; up 36 since FY2020.
39	R2K Alliance LLC Top agencies DOT (Department of Transportation)	$2,158,440	0.3%	Rank history: #40 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
40	Skyline Aviation B.V. Top agencies USAF (Department of the Air Force)	$1,927,020	0.2%	Rank history: #44 in FY2022, #41 in FY2023, #56 in FY2024 and not on the FY2025 list; up 15 since FY2020.
41	XP Services, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,755,538	0.2%	Rank history: not on the FY2022 list, #62 in FY2023, #72 in FY2024 and not on the FY2025 list; up 1 since FY2020.
42	Specular Theory Inc. Top agencies USAF (Department of the Air Force)	$1,671,668	0.2%	Rank history: #43 in FY2022, #42 in FY2023, #45 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
43	Group EM3 Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,665,490	0.2%	Rank history: #48 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
44	Walsingham Group Inc. Top agencies USAF (Department of the Air Force)	$1,598,789	0.2%	Rank history: not on the FY2022–FY2025 lists; down 13 since FY2020.
45	Flight Training International, Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$1,543,738	0.2%	Rank history: #41 in FY2022, #44 in FY2023, #49 in FY2024 and #48 in FY2025; down 16 since FY2020.
46	VTS Aviation LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,461,360	0.2%	Rank history: #49 in FY2022, #49 in FY2023, #52 in FY2024 and #53 in FY2025; up 39 since FY2020.
47	CAE Usa, Inc. Top agencies Navy (Department of the Navy)	$1,262,901	0.2%	Rank history: not on the FY2022–FY2023 lists, #4 in FY2024 and #1 in FY2025; up 5 since FY2020.
48	Engineering Support Personnel, Inc. Top agencies Navy (Department of the Navy)	$1,155,942	0.1%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
49	Techtrans International Inc. Top agencies USAF (Department of the Air Force)	$1,141,020	0.1%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
50	Integrated Surveillance and Defense, Inc. Top agencies Navy (Department of the Navy)	$972,836	0.1%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; up 27 since FY2020.
51	Simcom International Inc. Top agencies USAF (Department of the Air Force)	$857,323	0.1%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
52	Vali, Inc. Top agencies USAF (Department of the Air Force)	$841,134	0.1%	Rank history: #85 in FY2022 and not on the FY2023–FY2025 lists; up 9 since FY2020.
53	Atlas Air Worldwide Holdings Inc. Through Atlas Air, Inc. Top agencies USAF (Department of the Air Force)	$771,211	0.1%	Rank history: #53 in FY2022, #94 in FY2023, #83 in FY2024 and not on the FY2025 list; up 46 since FY2020.
54	Priority 1 Air Rescue Services Inc. Through Priority 1 Air Rescue Operations (Arizona), LP Top agencies DHS (Department of Homeland Security)	$742,769	0.1%	Rank history: #54 in FY2022, #54 in FY2023, #64 in FY2024 and not on the FY2025 list; up 26 since FY2020.
55	Avenger Flight Training, LLC Top agencies USAF (Department of the Air Force)	$648,000	0.1%	Rank history: #71 in FY2022, #59 in FY2023, #71 in FY2024 and #59 in FY2025; new, not ranked in FY2020.
56	Chenega Defense & Aerospace Solutions, LLC Top agencies USAF (Department of the Air Force)	$588,845	0.1%	Rank history: #50 in FY2022, #47 in FY2023, #54 in FY2024 and #54 in FY2025; new, not ranked in FY2020.
57	Apogee Engineering, LLC Top agencies USAF (Department of the Air Force)	$583,500	0.1%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 11 since FY2020.
58	T3I Solutions LLC Top agencies USAF (Department of the Air Force)	$557,920	0.1%	Rank history: #61 in FY2022, #58 in FY2023, #60 in FY2024 and not on the FY2025 list; up 14 since FY2020.
59	Gauntlet Aerospace LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$538,000	0.1%	Rank history: #55 in FY2022, #55 in FY2023, #70 in FY2024 and #64 in FY2025; up 10 since FY2020.
60	Trident Aircraft, Inc. Top agencies Navy (Department of the Navy)	$499,935	0.1%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; up 10 since FY2020.
61	Delta Air Lines, Inc. Top agencies Navy (Department of the Navy)	$468,700	0.1%	Rank history: #57 in FY2022, not on the FY2023 list, #62 in FY2024 and #61 in FY2025; up 12 since FY2020.
62	Cobham Advanced Electronic Solutions Inc. Through FR Aviation Limited Top agencies USAF (Department of the Air Force)	$448,891	0.1%	Rank history: not on the FY2022 list, #67 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
63	All In Aviation LLC Top agencies USAF (Department of the Air Force)	$424,875	0.1%	Rank history: not on the FY2022 list, #51 in FY2023, #51 in FY2024 and #41 in FY2025; down 1 since FY2020.
64	Logistic Services International, Inc. Top agencies Navy (Department of the Navy)	$395,925	<0.1%	Rank history: #63 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
65	Textron Inc. 2 awardees, including Bell Textron Inc. Top agencies DOJ (Department of Justice) DOT (Department of Transportation) DOE (Department of Energy)	$382,092	<0.1%	Rank history: #58 in FY2022, #7 in FY2023, #2 in FY2024 and #4 in FY2025; up 37 since FY2020.
66	Army Aviation Heritage Foundation and Flying Museum, Inc. Top agencies Navy (Department of the Navy)	$349,409	<0.1%	Rank history: #75 in FY2022, #78 in FY2023, #77 in FY2024 and #66 in FY2025; new, not ranked in FY2020.
67	Ravn Group, Inc. Top agencies Army (Department of the Army)	$349,178	<0.1%	Rank history: not on the FY2022 list, #34 in FY2023, #21 in FY2024 and #22 in FY2025; down 34 since FY2020.
68	Sea & Air Adventures LLC Top agencies USAF (Department of the Air Force)	$292,910	<0.1%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; up 11 since FY2020.
69	The University of Iowa Top agencies USAF (Department of the Air Force)	$230,717	<0.1%	Rank history: #76 in FY2022, #73 in FY2023, #66 in FY2024 and #67 in FY2025; up 14 since FY2020.
70	Commemorative Air Force Top agencies DOT (Department of Transportation) USAF (Department of the Air Force)	$210,049	<0.1%	Rank history: not on the FY2022 list, #90 in FY2023, #81 in FY2024 and not on the FY2025 list; up 62 since FY2020.
71	Brunner Aerospace LLC Top agencies USAF (Department of the Air Force)	$199,500	<0.1%	Rank history: #73 in FY2022, not on the FY2023 list, #35 in FY2024 and not on the FY2025 list; up 16 since FY2020.
72	David Glen Mitchell Top agencies USAF (Department of the Air Force)	$167,344	<0.1%	Rank history: #74 in FY2022, #76 in FY2023 and not on the FY2024–FY2025 lists; up 19 since FY2020.
73	ACE Maker Aviation LLC Top agencies USAF (Department of the Air Force)	$139,880	<0.1%	Rank history: #68 in FY2022, #68 in FY2023, #78 in FY2024 and #75 in FY2025; up 9 since FY2020.
74	Billings Flying Service LLC Top agencies DOT (Department of Transportation)	$120,495	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Rag Wings & Radials Aircraft Leasing LLC Top agencies Navy (Department of the Navy)	$115,818	<0.1%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; up 45 since FY2020.
76	Vertol Systems Company, Inc. Top agencies Navy (Department of the Navy)	$112,999	<0.1%	Rank history: not on the FY2022–FY2024 lists and #98 in FY2025; down 13 since FY2020.
77	Pirate Airlift Inc. Top agencies Navy (Department of the Navy)	$104,902	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 45 since FY2020.
78	Airbus Americas Inc. 2 awardees, including Airbus Americas Customer Services, Inc. and Airbus Helicopters, Inc. Top agencies DOT (Department of Transportation)	$103,058	<0.1%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
79	Bussmann Aviation LLC Top agencies Navy (Department of the Navy)	$98,254	<0.1%	Rank history: #92 in FY2022 and not on the FY2023–FY2025 lists; up 24 since FY2020.
80	Legacy Warbirds LLC Top agencies USAF (Department of the Air Force)	$94,625	<0.1%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
81	Topflight Elite Training and Charter Services Inc Top agencies DOJ (Department of Justice)	$94,270	<0.1%	Rank history: #65 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 35 since FY2020.
82	Flightsafety International Inc. Top agencies DOT (Department of Transportation)	$92,791	<0.1%	Rank history: #90 in FY2022, not on the FY2023–FY2024 lists and #10 in FY2025; down 46 since FY2020.
83	D2 Government Solutions, Inc. Top agencies Navy (Department of the Navy)	$89,248	<0.1%	Rank history: #87 in FY2022, #80 in FY2023, #84 in FY2024 and not on the FY2025 list; up 36 since FY2020.
84	Prevailance Aerospace, LLC Top agencies Navy (Department of the Navy)	$83,548	<0.1%	Rank history: not on the FY2022–FY2024 lists and #84 in FY2025; up 31 since FY2020.
85	Airtec Inc. Top agencies Navy (Department of the Navy)	$81,435	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Alaska's Cub Training Specialists, LLC Top agencies USAF (Department of the Air Force)	$74,595	<0.1%	Rank history: not on the FY2022 list, #69 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
87	Skylark North Top agencies USAF (Department of the Air Force)	$74,071	<0.1%	Rank history: #98 in FY2022, #86 in FY2023, #92 in FY2024 and not on the FY2025 list; up 22 since FY2020.
88	Phi Aviation, LLC Top agencies Navy (Department of the Navy)	$72,800	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Air Training Support, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$72,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
90	Dillon Aero, Inc. Top agencies Navy (Department of the Navy)	$71,039	<0.1%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
91	Survival Systems USA Inc. Top agencies USAF (Department of the Air Force)	$62,082	<0.1%	Rank history: #59 in FY2022, #71 in FY2023, #73 in FY2024 and #52 in FY2025; down 10 since FY2020.
92	Air Transport Services Group Inc. Through ABX Air, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$61,575	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
93	Longhorn Helicopters, Inc. Top agencies DOT (Department of Transportation)	$59,900	<0.1%	Rank history: #78 in FY2022 and not on the FY2023–FY2025 lists; up 41 since FY2020.
94	DGA Aeronautics, LLC Top agencies Navy (Department of the Navy)	$57,320	<0.1%	Rank history: #95 in FY2022, #97 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2020.
95	Agustawestland Philadelphia Corporation Through Leonardo Helicopters US Corporation Top agencies Navy (Department of the Navy)	$53,970	<0.1%	Rank history: not on the FY2022 list, #64 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
96	Pan Am International Flight Academy Inc. Through Pan Am Flight Academy, LLC Top agencies DOJ (Department of Justice)	$47,997	<0.1%	Rank history: #79 in FY2022, #91 in FY2023, #97 in FY2024 and not on the FY2025 list; down 30 since FY2020.
97	Sunrise Aviation Company, Inc. Top agencies USAF (Department of the Air Force)	$45,986	<0.1%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
98	Mccall Mountain / Canyon Flying Seminars LLC Top agencies DHS (Department of Homeland Security)	$42,600	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Air Rescue Systems Corporation Top agencies Army (Department of the Army)	$42,500	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Horizon Flight Center LLC Top agencies USSOCOM (United States Special Operations Command)	$39,198	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.

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100 of 120 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 $826 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 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 611512 contractors in FY2021?

1. CAE Inc. ($76.1M), 2. Amentum Services, Inc. ($74.3M), 3. Draken UK Bidco Limited ($72.6M), 4. Airborne Tactical Advantage Co LLC ($67.6M), 5. Crew Training International, Inc. ($61.5M), 6. L3Harris Technologies, Inc. ($43.7M), 7. Berkshire Hathaway Inc. ($43.3M), 8. Kbr, Inc. ($31M), 9. Pinnacle Solutions, LLC ($24.6M), 10. Delaware Resource Group of Oklahoma LLC ($23.5M).

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