Top 100 Contractors in NAICS 4881: Support Activities for Air Transportation, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Amentum Holdings, Inc. 2 awardees, including Amentum Services, Inc. and Dyncorp International LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,623,852,862	17.5%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	V2X, Inc. 2 awardees, including V2X Aerospace LLC and Vertex Modernization and Sustainment LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOJ (Department of Justice)	$1,277,183,118	13.8%	Rank history: #16 in FY2021, #94 in FY2022, not on the FY2023 list, #2 in FY2024 and #2 in FY2025; unchanged since Aug 2024–Jul 2025.
3	M1 Support Services, L.P. Top agencies Army (Department of the Army) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$876,576,483	9.5%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since Aug 2024–Jul 2025.
4	RTX Corporation 17 awardees, including Rockwell Collins, Inc., Raytheon Company and Rosemount Aerospace Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Navy (Department of the Navy)	$560,822,841	6.1%	Rank history: #4 in FY2021, #6 in FY2022, #5 in FY2023, #4 in FY2024 and #4 in FY2025; unchanged since Aug 2024–Jul 2025.
5	The Boeing Company 11 awardees, including Boeing Sikorsky Aircraft Support, LLC, Tapestry Solutions, Inc. and Jeppesen Foreflight, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Army (Department of the Army)	$350,990,271	3.8%	Rank history: #9 in FY2021, #5 in FY2022, #6 in FY2023, #6 in FY2024 and #6 in FY2025; up 2 since Aug 2024–Jul 2025.
6	Airbus Americas Inc. 2 awardees, including Airbus US Space & Defense Inc. and Airbus Helicopters, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$339,771,348	3.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
7	General Atomics Aeronautical Systems, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$336,129,928	3.6%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and #20 in FY2025; up 13 since Aug 2024–Jul 2025.
8	GDC Middle East Company Top agencies Army (Department of the Army)	$282,219,956	3.0%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #7 in FY2025; down 2 since Aug 2024–Jul 2025.
9	AAR Corp. 3 awardees, including AAR Government Services, Inc., AAR Allen Services, Inc. and AAR Supply Chain, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOS (Department of State)	$235,440,782	2.5%	Rank history: #85 in FY2021, not on the FY2022–FY2023 lists, #15 in FY2024 and #24 in FY2025; up 30 since Aug 2024–Jul 2025.
10	Northrop Grumman Systems Corporation 9 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$229,979,858	2.5%	Rank history: #7 in FY2021, #4 in FY2022, #4 in FY2023, #9 in FY2024 and #9 in FY2025; down 1 since Aug 2024–Jul 2025.
11	Jpats Logistics Services, LLC Top agencies USAF (Department of the Air Force)	$215,828,977	2.3%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #5 in FY2025; down 6 since Aug 2024–Jul 2025.
12	Calista Corp 4 awardees, including Yulista Support Services LLC, Yulista Solutions, LLC and Yulista Contract Services LLC Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration) DOE (Department of Energy)	$195,273,785	2.1%	Rank history: #13 in FY2021, #10 in FY2022, #11 in FY2023, #42 in FY2024 and #11 in FY2025; new, not ranked in Aug 2024–Jul 2025.
13	Envision Xpress Inc. Top agencies DLA (Defense Logistics Agency)	$146,176,103	1.6%	Rank history: not on the FY2021–FY2023 lists, #77 in FY2024 and #16 in FY2025; up 15 since Aug 2024–Jul 2025.
14	Kay and Associates, Inc. Top agencies Navy (Department of the Navy)	$130,492,301	1.4%	Rank history: #19 in FY2021, #16 in FY2022, #18 in FY2023, #37 in FY2024 and #14 in FY2025; up 2 since Aug 2024–Jul 2025.
15	General Dynamics Corporation Through Gulfstream Aerospace Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOJ (Department of Justice)	$124,555,601	1.3%	Rank history: #92 in FY2021, not on the FY2022–FY2023 lists, #80 in FY2024 and #13 in FY2025; down 2 since Aug 2024–Jul 2025.
16	Lockheed Martin Corporation 11 awardees, including Sikorsky Aircraft Corporation, Lockheed Martin Services, LLC and Derco Aerospace, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DOJ (Department of Justice)	$119,598,555	1.3%	Rank history: #14 in FY2021, #11 in FY2022, #10 in FY2023, #13 in FY2024 and #12 in FY2025; down 5 since Aug 2024–Jul 2025.
17	Textron Inc. 6 awardees, including Airborne Tactical Advantage Co LLC, Textron Aviation Defense LLC and Textron Aviation Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$113,612,963	1.2%	Rank history: #28 in FY2021, #40 in FY2022, #31 in FY2023, #18 in FY2024 and #17 in FY2025; down 3 since Aug 2024–Jul 2025.
18	Sabena Aerospace Engineering Top agencies USAF (Department of the Air Force)	$108,789,330	1.2%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023, #49 in FY2024 and #29 in FY2025; up 20 since Aug 2024–Jul 2025.
19	Robinson Aviation (Rva), Inc. Top agencies DOT (Department of Transportation)	$81,219,126	0.9%	Rank history: #21 in FY2021, #17 in FY2022, #16 in FY2023, #17 in FY2024 and #15 in FY2025; down 4 since Aug 2024–Jul 2025.
20	Midwest Air Traffic Control Service Inc Top agencies DOT (Department of Transportation)	$77,020,631	0.8%	Rank history: #24 in FY2021, #19 in FY2022, #17 in FY2023, #21 in FY2024 and #18 in FY2025; down 3 since Aug 2024–Jul 2025.
21	L3Harris Technologies, Inc. 6 awardees, including L3Harris Technologies Integrated Systems L.P., Wescam Inc. and Acron Aviation, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$66,231,821	0.7%	Rank history: #30 in FY2021, #36 in FY2022, #54 in FY2023, #39 in FY2024 and #27 in FY2025; up 2 since Aug 2024–Jul 2025.
22	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc. Top agencies DOT (Department of Transportation)	$65,478,617	0.7%	Rank history: #6 in FY2021, #33 in FY2022, #27 in FY2023, #23 in FY2024 and #19 in FY2025; down 1 since Aug 2024–Jul 2025.
23	Omega Aerial Refueling Services, Inc. Top agencies Navy (Department of the Navy)	$61,090,995	0.7%	Rank history: #31 in FY2021, #28 in FY2022, #22 in FY2023, #29 in FY2024 and #22 in FY2025; up 3 since Aug 2024–Jul 2025.
24	Nana Regional Corporation, Inc. 4 awardees, including Pinnacle Solutions, LLC, Akima Logistics Services LLC and Akima Readiness Support LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$60,450,308	0.7%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #21 in FY2025; down 2 since Aug 2024–Jul 2025.
25	Rolls-Royce Corporation Top agencies DHS (Department of Homeland Security)	$51,030,574	0.6%	Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and #37 in FY2025; up 12 since Aug 2024–Jul 2025.
26	National Technologies Associates Inc. Top agencies Navy (Department of the Navy)	$48,216,375	0.5%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and #31 in FY2025; up 5 since Aug 2024–Jul 2025.
27	Kals, LLC Top agencies Navy (Department of the Navy)	$43,593,345	0.5%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; up 7 since Aug 2024–Jul 2025.
28	Sierra Nevada Company, LLC 2 awardees Top agencies USAF (Department of the Air Force)	$36,432,984	0.4%	Rank history: #15 in FY2021, #14 in FY2022, #14 in FY2023, #25 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
29	Arrows Edge LLC Top agencies Navy (Department of the Navy)	$34,852,678	0.4%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023, #33 in FY2024 and #26 in FY2025; down 4 since Aug 2024–Jul 2025.
30	Marshall of Cambridge Aerospace Limited Top agencies Navy (Department of the Navy)	$33,505,487	0.4%	Rank history: #51 in FY2021, #29 in FY2022, #45 in FY2023, #34 in FY2024 and #34 in FY2025; up 6 since Aug 2024–Jul 2025.
31	Korean Air Lines Co.,Ltd. Top agencies USAF (Department of the Air Force) DCMA (Defense Contract Management Agency) Navy (Department of the Navy)	$26,928,711	0.3%	Rank history: #33 in FY2021, #24 in FY2022, #29 in FY2023, #26 in FY2024 and #32 in FY2025; up 1 since Aug 2024–Jul 2025.
32	Serco Inc 2 awardees Top agencies DOT (Department of Transportation) USAF (Department of the Air Force)	$26,403,473	0.3%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #27 in FY2024 and #30 in FY2025; down 2 since Aug 2024–Jul 2025.
33	SAFRAN 6 awardees, including Safran Helicopter Engines Usa, Inc., Safran Electronics & Defense, Avionics Usa, LLC and Safran Landing Systems Wheel & Brake Services LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$25,708,794	0.3%	Rank history: #35 in FY2021, #35 in FY2022, #38 in FY2023, #41 in FY2024 and #35 in FY2025; unchanged since Aug 2024–Jul 2025.
34	PKL Services, Inc. Top agencies USAF (Department of the Air Force)	$24,533,068	0.3%	Rank history: #43 in FY2021, #26 in FY2022, #34 in FY2023, #38 in FY2024 and #36 in FY2025; up 1 since Aug 2024–Jul 2025.
35	Tyonek Services Overhaul Facility-Stennis, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$21,852,954	0.2%	Rank history: #70 in FY2021, #25 in FY2022, #15 in FY2023, #30 in FY2024 and #25 in FY2025; down 6 since Aug 2024–Jul 2025.
36	Metrea Strategic Mobility Inc. Top agencies Navy (Department of the Navy)	$20,717,423	0.2%	Rank history: not on the FY2021 list, #23 in FY2022, #30 in FY2023, #36 in FY2024 and #28 in FY2025; down 9 since Aug 2024–Jul 2025.
37	Arizona Industries for the Blind Top agencies DLA (Defense Logistics Agency)	$20,365,048	0.2%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; up 85 since Aug 2024–Jul 2025.
38	ManTech International Corporation Through Standard Aero (San Antonio) Inc. Top agencies Navy (Department of the Navy)	$20,180,915	0.2%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; up 52 since Aug 2024–Jul 2025.
39	CI2 Aviation, Inc. Top agencies DOT (Department of Transportation)	$19,305,159	0.2%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; up 5 since Aug 2024–Jul 2025.
40	WSP USA Solutions Inc Through VGS Aircraft Services, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$18,656,313	0.2%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; up 1 since Aug 2024–Jul 2025.
41	Jet Support Services, Inc. Top agencies DOT (Department of Transportation)	$18,635,687	0.2%	Rank history: not on the FY2021 list, #50 in FY2022, #49 in FY2023, #53 in FY2024 and #82 in FY2025; up 31 since Aug 2024–Jul 2025.
42	Nippi Corporation Top agencies Navy (Department of the Navy)	$17,336,670	0.2%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 13 since Aug 2024–Jul 2025.
43	King Aerospace, Inc. Top agencies DOT (Department of Transportation)	$15,921,368	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
44	MD Helicopters, LLC Top agencies Army (Department of the Army)	$15,912,726	0.2%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #76 in FY2025; up 33 since Aug 2024–Jul 2025.
45	LC Industries Inc. Top agencies DLA (Defense Logistics Agency)	$14,864,023	0.2%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023, not on the FY2024 list and #73 in FY2025; up 52 since Aug 2024–Jul 2025.
46	Huntington Ingalls Industries, Inc. Through HII Mission Technologies Corp Top agencies Army (Department of the Army)	$12,194,079	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
47	M-E JV2 LLC Top agencies USAF (Department of the Air Force)	$11,841,949	0.1%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and #46 in FY2025; up 4 since Aug 2024–Jul 2025.
48	Beyond Vision Inc. Through Beyond Vision - AIB Inc. Top agencies DLA (Defense Logistics Agency)	$11,215,495	0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	AAR Aircraft Services, Inc. Top agencies DOJ (Department of Justice)	$10,972,465	0.1%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; down 2 since Aug 2024–Jul 2025.
50	9Line LLC Top agencies USDA (Department of Agriculture)	$10,611,180	0.1%	Rank history: not on the FY2021 list, #77 in FY2022, #62 in FY2023, #76 in FY2024 and #47 in FY2025; up 16 since Aug 2024–Jul 2025.
51	Performance Aircraft Services, Inc. Top agencies Navy (Department of the Navy)	$9,704,303	0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 31 since Aug 2024–Jul 2025.
52	B3 Enterprises LLC Top agencies Army (Department of the Army)	$9,395,297	0.1%	Rank history: not on the FY2021 list, #27 in FY2022, #39 in FY2023, #48 in FY2024 and #39 in FY2025; down 12 since Aug 2024–Jul 2025.
53	Aero Precision & Repair Overhaul Company, Inc. Top agencies DHS (Department of Homeland Security)	$9,176,236	0.1%	Rank history: #50 in FY2021, #41 in FY2022, #66 in FY2023, #71 in FY2024 and #48 in FY2025; up 9 since Aug 2024–Jul 2025.
54	Blind Industries and Services of Maryland Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$9,128,398	0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; up 21 since Aug 2024–Jul 2025.
55	R.S. Logistical Solutions Ltd Top agencies USAF (Department of the Air Force)	$9,118,771	0.1%	Rank history: not on the FY2021–FY2025 lists; up 72 since Aug 2024–Jul 2025.
56	Triad Logistics Services Corporation Top agencies USAF (Department of the Air Force)	$8,625,162	0.1%	Rank history: #45 in FY2021, #44 in FY2022, #44 in FY2023, #55 in FY2024 and #44 in FY2025; down 3 since Aug 2024–Jul 2025.
57	C2G, Ltd Co. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,448,771	0.1%	Rank history: #57 in FY2021, #57 in FY2022, #52 in FY2023, #70 in FY2024 and #53 in FY2025; up 3 since Aug 2024–Jul 2025.
58	Peraton Aerospace & Defense Inc. Through Qinetiq Limited Top agencies USAF (Department of the Air Force)	$8,280,639	0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; up 65 since Aug 2024–Jul 2025.
59	Algese S.R.L. Top agencies Navy (Department of the Navy)	$8,078,868	0.1%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and #54 in FY2025; down 3 since Aug 2024–Jul 2025.
60	TA1 LLC Top agencies USAF (Department of the Air Force)	$7,907,732	0.1%	Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and #65 in FY2025; up 26 since Aug 2024–Jul 2025.
61	Techwise LLC Top agencies Army (Department of the Army)	$7,815,154	0.1%	Rank history: #97 in FY2021, #95 in FY2022, not on the FY2023 list, #87 in FY2024 and not on the FY2025 list; up 24 since Aug 2024–Jul 2025.
62	Akima Facilities Operations LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$7,811,134	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023, #51 in FY2024 and #41 in FY2025; down 19 since Aug 2024–Jul 2025.
63	Asia Pacific Aerospace Pty. Ltd. Top agencies Navy (Department of the Navy)	$7,698,066	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
64	Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$7,668,725	0.1%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #43 in FY2025; down 16 since Aug 2024–Jul 2025.
65	Axxeum Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture) USAF (Department of the Air Force)	$7,582,723	0.1%	Rank history: not on the FY2021 list, #86 in FY2022, not on the FY2023–FY2024 lists and #59 in FY2025; up 377 since Aug 2024–Jul 2025.
66	PCI Aviation LLC Top agencies Navy (Department of the Navy)	$6,626,795	0.1%	Rank history: not on the FY2021 list, #79 in FY2022, #70 in FY2023, #63 in FY2024 and #49 in FY2025; down 2 since Aug 2024–Jul 2025.
67	Calspan, LLC Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$6,442,384	0.1%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #63 in FY2025; down 17 since Aug 2024–Jul 2025.
68	San Antonio Lighthouse for the Blind Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$6,417,537	0.1%	Rank history: not on the FY2021–FY2025 lists; up 161 since Aug 2024–Jul 2025.
69	Goldbelt, Incorporated 2 awardees, including Goldbelt Integrated Logistics Services, LLC and Nisga'a Mostt, LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$6,303,566	0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70	Dynamic Science, Inc. Top agencies USAF (Department of the Air Force)	$6,181,468	0.1%	Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and #56 in FY2025; down 3 since Aug 2024–Jul 2025.
71	Aviation Defense Service Through Airbus DS Military Aircraft, Inc. Top agencies DHS (Department of Homeland Security)	$5,990,368	0.1%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2023, #7 in FY2024 and #57 in FY2025; down 8 since Aug 2024–Jul 2025.
72	S & K Aerospace, LLC Top agencies USAF (Department of the Air Force)	$5,625,868	0.1%	Rank history: #22 in FY2021, not on the FY2022–FY2024 lists and #68 in FY2025; up 1 since Aug 2024–Jul 2025.
73	Vector CSP LLC Top agencies Navy (Department of the Navy)	$5,523,095	0.1%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #62 in FY2025; down 4 since Aug 2024–Jul 2025.
74	Bahrain Airport Services Company (Bas) B.s.c Closed Top agencies USAF (Department of the Air Force)	$5,522,514	0.1%	Rank history: #71 in FY2021, #69 in FY2022, #67 in FY2023, not on the FY2024 list and #69 in FY2025; up 7 since Aug 2024–Jul 2025.
75	Coastal Helicopters, Inc. Top agencies Navy (Department of the Navy)	$5,260,826	0.1%	Rank history: not on the FY2021 list, #87 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; up 301 since Aug 2024–Jul 2025.
76	Logmet LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$5,148,741	0.1%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and #67 in FY2025; down 8 since Aug 2024–Jul 2025.
77	Berry Aviation, Inc. Top agencies USAF (Department of the Air Force)	$5,129,571	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; down 12 since Aug 2024–Jul 2025.
78	Strategic Technology Institute Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$5,084,263	0.1%	Rank history: #77 in FY2021, #71 in FY2022, #75 in FY2023, #79 in FY2024 and #72 in FY2025; up 1 since Aug 2024–Jul 2025.
79	Parker-Hannifin Corporation 7 awardees, including Aircraft Wheel and Brake, LLC, Oeco, LLC and Nasco Aircraft Brake, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$4,569,883	<0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; up 77 since Aug 2024–Jul 2025.
80	Tactair Fluid Controls Inc 6 awardees, including Breeze-Eastern LLC, Century Helicopters, Inc. and Avionic Instruments LLC Top agencies DHS (Department of Homeland Security) DOE (Department of Energy) DLA (Defense Logistics Agency)	$4,519,306	<0.1%	Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and #74 in FY2025; down 19 since Aug 2024–Jul 2025.
81	New Frontier Innovations LLC Top agencies USAF (Department of the Air Force)	$4,476,466	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	Shiloh Services Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$4,368,852	<0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; down 2 since Aug 2024–Jul 2025.
83	South Texas Lighthouse for the Blind Foundation Top agencies DLA (Defense Logistics Agency)	$4,335,139	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 102 since Aug 2024–Jul 2025.
84	T Square Logistics Services Corporation Top agencies USAF (Department of the Air Force)	$4,170,278	<0.1%	Rank history: #78 in FY2021, #80 in FY2022, #78 in FY2023, #81 in FY2024 and #81 in FY2025; down 1 since Aug 2024–Jul 2025.
85	OLH Technical Services, LLC Top agencies DHS (Department of Homeland Security)	$4,129,342	<0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023, not on the FY2024 list and #71 in FY2025; up 16 since Aug 2024–Jul 2025.
86	Draken International, LLC Top agencies Navy (Department of the Navy)	$4,064,047	<0.1%	Rank history: #55 in FY2021, #46 in FY2022, #50 in FY2023, #58 in FY2024 and #55 in FY2025; down 29 since Aug 2024–Jul 2025.
87	AAR Government Services, Inc. Top agencies Navy (Department of the Navy)	$4,029,267	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	Lakota Solutions LLC Top agencies USAF (Department of the Air Force)	$3,901,508	<0.1%	Rank history: #64 in FY2021, #66 in FY2022, #57 in FY2023, #73 in FY2024 and #70 in FY2025; down 12 since Aug 2024–Jul 2025.
89	Leonardo S.p.A. 2 awardees, including DRS Network & Imaging Systems LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$3,761,186	<0.1%	Rank history: #88 in FY2021, not on the FY2022 list, #71 in FY2023, #62 in FY2024 and #91 in FY2025; down 18 since Aug 2024–Jul 2025.
90	Science Applications International Corporation 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,728,643	<0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; down 3 since Aug 2024–Jul 2025.
91	Blind and Vision Impaired, Virginia Department for The Top agencies DLA (Defense Logistics Agency)	$3,662,371	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 44 since Aug 2024–Jul 2025.
92	Rsi-Quantitech JV LLC Top agencies Army (Department of the Army)	$3,641,941	<0.1%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #87 in FY2025; down 4 since Aug 2024–Jul 2025.
93	Rotair Aerospace Corp Top agencies DLA (Defense Logistics Agency)	$3,583,903	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	Tyonek Technical Services, LLC Top agencies Army (Department of the Army)	$3,577,880	<0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, #85 in FY2024 and #92 in FY2025; down 3 since Aug 2024–Jul 2025.
95	Hornet Acquisitionco LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$3,521,749	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	KLJ Services LLC Top agencies Navy (Department of the Navy)	$3,495,385	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	Air New Zealand Limited Top agencies USAF (Department of the Air Force)	$3,417,359	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 31 since Aug 2024–Jul 2025.
98	TTM Technologies, Inc. 2 awardees, including Telephonics Corporation Top agencies DHS (Department of Homeland Security)	$3,398,965	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	Turbo Air Inc. Top agencies DOI (Department of the Interior)	$3,318,532	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 31 since Aug 2024–Jul 2025.
100	Starlight Corp Top agencies USAF (Department of the Air Force)	$3,284,943	<0.1%	Rank history: not on the FY2021 list, #88 in FY2022 and not on the FY2023–FY2025 lists; up 12 since Aug 2024–Jul 2025.

Rankings for the codes under NAICS 4881

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 $9.27 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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.
• Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
• Rank changes compare with Aug 2024–Jul 2025. "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.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers