Top 100 Contractors in NAICS 48-49: Transportation and Warehousing, FY2021

Name: Top 100 Contractors in NAICS 48-49: Transportation and Warehousing, FY2021
Creator: GovTribe

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

The top 10 won 37% of FY2021 NAICS 48-49 contract dollars

Contract obligations: $19,167,484,099 Net of deobligations, by contracts coded NAICS 48-49 or a code under it
Contractors: 3,585 Parent companies with an obligation
Largest contractor: Mckesson Corporation $1.49 billion, 7.2% 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	Mckesson Corporation Through Mckesson Specialty Distribution LLC Top agencies HHS (Department of Health and Human Services)	$1,494,718,093	7.2%	Rank history: not on the FY2022–FY2025 lists; up 18 since FY2020.
2	Amentum Services, Inc. 2 awardees, including Dyncorp International LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) Treasury (Department of the Treasury)	$882,606,799	4.3%	Rank history: #1 in FY2022, #1 in FY2023, #3 in FY2024 and not on the FY2025 list; up 190 since FY2020.
3	Fedex Corp 12 awardees, including Federal Express Corporation, Genco Infrastructure Solutions, Inc. and Fedex Custom Critical Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) DOJ (Department of Justice)	$844,810,591	4.1%	Rank history: #4 in FY2022, #2 in FY2023, #4 in FY2024 and #8 in FY2025; up 6 since FY2020.
4	M1 Support Services, L.P. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$783,684,112	3.8%	Rank history: #7 in FY2022, #6 in FY2023, #6 in FY2024 and #4 in FY2025; down 2 since FY2020.
5	Vertex Aerospace LLC 4 awardees, including V2X Aerospace LLC and Crestview Aerospace LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DCMA (Defense Contract Management Agency)	$761,034,958	3.7%	Rank history: #3 in FY2022, #5 in FY2023, #52 in FY2024 and not on the FY2025 list; up 3 since FY2020.
6	United Launch Alliance, L.L.C. Through United Launch Services, LLC Top agencies USAF (Department of the Air Force)	$632,893,090	3.1%	Rank history: #2 in FY2022, #3 in FY2023, #2 in FY2024 and #6 in FY2025; down 3 since FY2020.
7	Patriot Team Top agencies USAF (Department of the Air Force)	$582,436,106	2.8%	Rank history: #5 in FY2022, #4 in FY2023, #7 in FY2024 and not on the FY2025 list; down 3 since FY2020.
8	RTX Corporation 26 awardees, including Rockwell Collins, Inc., Raytheon Company and Goodrich Corporation Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Navy (Department of the Navy)	$566,351,188	2.7%	Rank history: #11 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
9	Space Exploration Technologies Corp. Top agencies USAF (Department of the Air Force) SDA (Space Development Agency) OSD (Office of the Secretary of Defense)	$518,817,372	2.5%	Rank history: #8 in FY2022, #7 in FY2023, #1 in FY2024 and #2 in FY2025; up 4 since FY2020.
10	Crowley Government Services Inc. 6 awardees, including Crowley Logistics, Inc., Crowley Marine Services, Inc. and Crowley Maritime Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) OSD (Office of the Secretary of Defense)	$503,354,752	2.4%	Rank history: #10 in FY2022, #8 in FY2023, #8 in FY2024 and #10 in FY2025; down 3 since FY2020.
11	Remington Arms Company LLC Through Dyncorp International LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DCMA (Defense Contract Management Agency)	$460,521,473	2.2%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
12	Maersk Inc. 4 awardees, including U.s. Marine Management, LLC, Maersk Line, Limited and Farrell Lines Incorporated Top agencies Army (Department of the Army) Navy (Department of the Navy) USAID (US Agency for International Development)	$413,220,690	2.0%	Rank history: #12 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
13	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. Top agencies Army (Department of the Army) DOT (Department of Transportation)	$412,206,324	2.0%	Rank history: not on the FY2022 list, #79 in FY2023, #58 in FY2024 and #56 in FY2025; up 1 since FY2020.
14	Northrop Grumman Corporation 15 awardees, including Northrop Grumman Systems Corporation and Orbital Sciences LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$383,844,085	1.9%	Rank history: #6 in FY2022, #9 in FY2023, #15 in FY2024 and #18 in FY2025; down 8 since FY2020.
15	Aarcorp 5 awardees, including AAR Government Services, Inc., AAR Aircraft Services, Inc. and AAR Allen Services, Inc. Top agencies DOS (Department of State) DOE (Department of Energy) USAF (Department of the Air Force)	$297,659,535	1.4%	Rank history: #22 in FY2022, #16 in FY2023, #50 in FY2024 and not on the FY2025 list; up 7 since FY2020.
16	The Boeing Company 13 awardees, including Boeing Sikorsky Aircraft Support, LLC, Boeing Aerospace Operations, Inc. and Tapestry Solutions, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$274,985,631	1.3%	Rank history: #9 in FY2022, #13 in FY2023, #14 in FY2024 and #13 in FY2025; up 4 since FY2020.
17	United Parcel Service Inc. 6 awardees, including Tforce Freight, Inc. Top agencies VA (Department of Veterans Affairs) OSD (Office of the Secretary of Defense) Treasury (Department of the Treasury)	$256,076,396	1.2%	Rank history: #16 in FY2022, #19 in FY2023, #12 in FY2024 and #26 in FY2025; up 8 since FY2020.
18	IAP Global Services LLC 3 awardees, including Jpats Logistics Services, LLC, IAP Worldwide Services, Inc. and Readiness Management Support LC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$242,885,922	1.2%	Rank history: #21 in FY2022, #18 in FY2023, #22 in FY2024 and not on the FY2025 list; down 3 since FY2020.
19	Airbus Americas Inc. 4 awardees, including Airbus US Space & Defense Inc., Airbus Helicopters, Inc. and Airbus DS Military Aircraft, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$227,608,571	1.1%	Rank history: #15 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
20	PAE Government Services Inc. 3 awardees, including PAE Aviation and Technical Services LLC and FCI Federal, LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USAF (Department of the Air Force)	$223,946,820	1.1%	Rank history: #31 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; up 50 since FY2020.
21	Patriot Contract Services, LLC Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$219,321,876	1.1%	Rank history: #14 in FY2022, #11 in FY2023, #10 in FY2024 and #14 in FY2025; down 4 since FY2020.
22	National Air Cargo, Inc. 2 awardees, including National Air Cargo Group, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$167,288,715	0.8%	Rank history: #13 in FY2022, #15 in FY2023, #33 in FY2024 and not on the FY2025 list; up 47 since FY2020.
23	International Auto Logistics, LLC Top agencies Army (Department of the Army) USTRANSCOM (Department of Defense United States Transportation Command)	$157,851,156	0.8%	Rank history: #25 in FY2022, #23 in FY2023, #17 in FY2024 and #21 in FY2025; unchanged since FY2020.
24	Science Applications International Corporation 2 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$142,087,576	0.7%	Rank history: #24 in FY2022, #21 in FY2023, #68 in FY2024 and not on the FY2025 list; up 10 since FY2020.
25	Calista Corp 4 awardees, including Yulista Support Services LLC, Yulista Tactical Services LLC and Y-Tech Services, Inc. Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$140,239,065	0.7%	Rank history: #23 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
26	Saltchuk Resources, Inc. 7 awardees, including Tote Services, LLC, Tote Maritime Puerto Rico, LLC and Tote Maritime Alaska, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) MDA (DOD Missile Defense Agency)	$138,261,712	0.7%	Rank history: #26 in FY2022, #25 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
27	Liberty Global Logistics LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$116,090,875	0.6%	Rank history: #29 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; up 17 since FY2020.
28	Phoenix Air Group, Inc. Top agencies DOS (Department of State) Navy (Department of the Navy) USAF (Department of the Air Force)	$112,167,408	0.5%	Rank history: #51 in FY2022, #51 in FY2023, #66 in FY2024 and #61 in FY2025; down 7 since FY2020.
29	Lockheed Martin Corporation 8 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOJ (Department of Justice)	$107,194,576	0.5%	Rank history: #28 in FY2022, #27 in FY2023, #27 in FY2024 and #30 in FY2025; up 198 since FY2020.
30	Classic Air Charter Inc. Top agencies DHS (Department of Homeland Security)	$105,307,635	0.5%	Rank history: #17 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
31	Sierra Nevada Company, LLC 2 awardees Top agencies USAF (Department of the Air Force)	$103,556,085	0.5%	Rank history: #41 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
32	Life Science Logistics LLC Top agencies HHS (Department of Health and Human Services)	$99,826,570	0.5%	Rank history: #20 in FY2022, #39 in FY2023, #62 in FY2024 and not on the FY2025 list; up 26 since FY2020.
33	General Atomic Technologies Corporation 2 awardees, including General Atomics Aeronautical Systems, Inc. and General Atomics Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Navy (Department of the Navy)	$98,444,075	0.5%	Rank history: #33 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
34	Astrobotic Technology Inc. Top agencies NASA (National Aeronautics and Space Administration)	$95,051,201	0.5%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
35	American President Lines Ltd. 3 awardees, including Circle Freight International - Bahrain Co. W.l.l Top agencies Army (Department of the Army) USAID (US Agency for International Development) Navy (Department of the Navy)	$93,217,241	0.5%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
36	V2X, Inc. Through V2X Aerospace LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DCMA (Defense Contract Management Agency)	$92,701,615	0.4%	Rank history: not on the FY2022–FY2023 lists, #5 in FY2024 and #3 in FY2025; down 18 since FY2020.
37	Matson Navigation Company Inc 2 awardees, including Matson Logistics, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$92,089,693	0.4%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
38	Ocean Shipholdings, Inc. 2 awardees, including Ocean Ships, Inc. Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$87,776,794	0.4%	Rank history: #18 in FY2022, #17 in FY2023, #21 in FY2024 and #22 in FY2025; down 11 since FY2020.
39	Air Transport International Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$86,050,588	0.4%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
40	Tyonek Native Corporatio 3 awardees, including Tyonek Services Overhaul Facility-Stennis, LLC and Tyonek Global Services LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$85,440,650	0.4%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; up 42 since FY2020.
41	American Roll-on Roll-Off Carrier LLC 3 awardees, including Transcar GMBH and American Roll-On Roll-Off Carrier Group, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$84,405,771	0.4%	Rank history: #43 in FY2022, #26 in FY2023, #16 in FY2024 and #25 in FY2025; up 2 since FY2020.
42	Kay and Associates, Inc. Top agencies Navy (Department of the Navy)	$83,742,932	0.4%	Rank history: #44 in FY2022, #54 in FY2023, not on the FY2024 list and #45 in FY2025; up 26 since FY2020.
43	Pinnacle Solutions, LLC Top agencies Army (Department of the Army)	$80,152,281	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
44	Sealift Holdings Inc. 2 awardees, including Sealift Inc. of Delaware Top agencies Navy (Department of the Navy) Army (Department of the Army) USAID (US Agency for International Development)	$75,208,883	0.4%	Rank history: #57 in FY2022, #45 in FY2023, #36 in FY2024 and #72 in FY2025; up 35 since FY2020.
45	Construction Helicopters, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$73,944,089	0.4%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
46	Henry Schein, Inc. Top agencies HHS (Department of Health and Human Services)	$72,668,592	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Chas Kurz & Co Inc 2 awardees, including Keystone Shipping Services, Inc. and Keystone Shipping Co Top agencies Navy (Department of the Navy) DOT (Department of Transportation) OSD (Office of the Secretary of Defense)	$71,069,098	0.3%	Rank history: #32 in FY2022, #22 in FY2023, #84 in FY2024 and not on the FY2025 list; up 18 since FY2020.
48	Serco North America (Holdings) Inc 2 awardees, including Serco Inc. Top agencies DOT (Department of Transportation) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$67,416,545	0.3%	Rank history: #68 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
49	Robinson Aviation (Rva), Inc. Top agencies DOT (Department of Transportation)	$65,742,590	0.3%	Rank history: #46 in FY2022, #47 in FY2023, #47 in FY2024 and #46 in FY2025; up 3 since FY2020.
50	S & K Aerospace, LLC Top agencies USAF (Department of the Air Force)	$65,405,706	0.3%	Rank history: not on the FY2022–FY2025 lists; down 9 since FY2020.
51	Hornbeck Offshore Services Inc. Through Hornbeck Offshore Operators LLC Top agencies Navy (Department of the Navy)	$65,347,659	0.3%	Rank history: #48 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2020.
52	Intuitive Machines, LLC Top agencies NASA (National Aeronautics and Space Administration)	$64,833,250	0.3%	Rank history: #45 in FY2022, #67 in FY2023, #41 in FY2024 and not on the FY2025 list; up 23 since FY2020.
53	Seacor Holdings Inc. 4 awardees, including Waterman Transport Inc., Fairwater Tanker Management LLC and E.n. Bisso & Son Towing, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$64,694,886	0.3%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
54	Berry Aviation Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$62,927,772	0.3%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
55	Patriarch Partners LLC Through MD Helicopters Inc. Top agencies Army (Department of the Army)	$62,837,618	0.3%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
56	Airborne Tactical Advantage Co LLC Top agencies Navy (Department of the Navy)	$61,706,694	0.3%	Rank history: #42 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
57	Cardinal Health, Inc. Through Cardinal Health 200, LLC Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$61,174,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Noosphere Venture Partners LP 2 awardees, including Firefly Aerospace Inc. and Firefly Space Transport Services, LLC Top agencies NASA (National Aeronautics and Space Administration)	$58,719,251	0.3%	Rank history: #52 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
59	Cencora, Inc. 2 awardees, including Amerisourcebergen Drug Corp and World Courier Inc. Top agencies HHS (Department of Health and Human Services)	$56,672,854	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	Ocean Duchess, Inc. Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$56,143,842	0.3%	Rank history: not on the FY2022 list, #78 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
61	Dome Chartering & Trading Corp. Through Schuyler Line Navigation Company LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$55,641,953	0.3%	Rank history: #37 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
62	Delta Air Lines, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) DOJ (Department of Justice)	$55,111,606	0.3%	Rank history: #92 in FY2022 and not on the FY2023–FY2025 lists; down 20 since FY2020.
63	Midwest Air Traffic Control Service Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$55,052,546	0.3%	Rank history: #50 in FY2022, #49 in FY2023, #53 in FY2024 and #54 in FY2025; down 9 since FY2020.
64	CMA CGM 3 awardees, including American President Lines, LLC, Ceva Freight LLC and Circle Freight International - Bahrain Co. W.l.l Top agencies Army (Department of the Army) USAID (US Agency for International Development) Navy (Department of the Navy)	$54,887,408	0.3%	Rank history: #27 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
65	American Petroleum Tankers Parent LLC 4 awardees, including American Petroleum Tankers LLC and KN Telecommunications Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$53,163,739	0.3%	Rank history: #56 in FY2022, #59 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
66	Avmac LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$51,527,382	0.2%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
67	Nana Regional Corporation Inc 4 awardees, including Akima Logistics Services LLC, Lockwood Hills Federal LLC and Akima Support Operations, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$49,373,010	0.2%	Rank history: #65 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; up 48 since FY2020.
68	Global Asset Technologies LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$48,241,085	0.2%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; down 15 since FY2020.
69	Global Pcci (Gpc) Top agencies Navy (Department of the Navy)	$47,982,818	0.2%	Rank history: #63 in FY2022, #61 in FY2023, #95 in FY2024 and #63 in FY2025; down 6 since FY2020.
70	Mina Petroleum FZE Top agencies DLA (Defense Logistics Agency)	$46,859,368	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Textron Inc. 6 awardees, including Textron Systems Corporation, Textron Aviation Inc. and Able Aerospace Services, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture) DHS (Department of Homeland Security)	$44,416,955	0.2%	Rank history: not on the FY2022–FY2023 lists, #49 in FY2024 and #49 in FY2025; unchanged since FY2020.
72	Transoceanic Cable Ship Company LLC Top agencies Navy (Department of the Navy)	$43,703,456	0.2%	Rank history: #76 in FY2022, #82 in FY2023, #35 in FY2024 and not on the FY2025 list; up 11 since FY2020.
73	Aero-Flite, Inc. Top agencies USDA (Department of Agriculture)	$42,813,088	0.2%	Rank history: #38 in FY2022, #57 in FY2023, #46 in FY2024 and #38 in FY2025; up 31 since FY2020.
74	Valiant Technical Services Inc. Top agencies DLA (Defense Logistics Agency)	$42,645,886	0.2%	Rank history: not on the FY2022–FY2023 lists, #86 in FY2024 and #79 in FY2025; up 14 since FY2020.
75	Alpha Marine Services LLC Top agencies Navy (Department of the Navy)	$40,650,577	0.2%	Rank history: #62 in FY2022, #62 in FY2023, #60 in FY2024 and #50 in FY2025; up 18 since FY2020.
76	MLS-Multinational Logistic Services Limited Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$37,716,588	0.2%	Rank history: not on the FY2022–FY2025 lists; up 9 since FY2020.
77	Masten Space Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$37,584,301	0.2%	Rank history: not on the FY2022–FY2025 lists; up 25 since FY2020.
78	Cherokee Nation 2 awardees, including Cherokee Nation Management & Consulting, L.l.c.. and Cherokee Nation Red Wing, L.L.C. Top agencies Navy (Department of the Navy) DOS (Department of State) Army (Department of the Army)	$37,512,833	0.2%	Rank history: #90 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 69 since FY2020.
79	Atlas Air Worldwide Holdings Inc. 2 awardees, including Polar Air Cargo Worldwide, Inc. and Atlas Air, Inc. Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) DOS (Department of State)	$37,044,003	0.2%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
80	Hapag-Lloyd USA LLC Top agencies Army (Department of the Army)	$36,708,398	0.2%	Rank history: #86 in FY2022, #76 in FY2023, #98 in FY2024 and not on the FY2025 list; down 3 since FY2020.
81	US Ocean LLC Top agencies Army (Department of the Army)	$36,170,215	0.2%	Rank history: #69 in FY2022, #56 in FY2023, #55 in FY2024 and #53 in FY2025; up 49 since FY2020.
82	Technica LLC Top agencies DLA (Defense Logistics Agency)	$35,459,804	0.2%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
83	Air Center Helicopters, Inc. Top agencies Navy (Department of the Navy) NSF (National Science Foundation) DOT (Department of Transportation)	$35,097,432	0.2%	Rank history: #40 in FY2022, #46 in FY2023, #67 in FY2024 and #98 in FY2025; up 18 since FY2020.
84	L3Harris Technologies, Inc. 10 awardees, including L3Harris Technologies Integrated Systems L.P., Wescam Inc. and CAE USA Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$34,938,045	0.2%	Rank history: not on the FY2022–FY2024 lists and #81 in FY2025; up 43 since FY2020.
85	Pacific-Gulf Marine, Inc. Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$33,385,001	0.2%	Rank history: #53 in FY2022, #58 in FY2023, #72 in FY2024 and #95 in FY2025; up 10 since FY2020.
86	Omega Aerial Refueling Services, Inc. Top agencies Navy (Department of the Navy)	$32,813,100	0.2%	Rank history: not on the FY2022 list, #63 in FY2023, #75 in FY2024 and #68 in FY2025; down 2 since FY2020.
87	Columbia Helicopters, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$31,908,056	0.2%	Rank history: not on the FY2022–FY2023 lists, #94 in FY2024 and not on the FY2025 list; down 75 since FY2020.
88	ERA Helicopters LLC Through Bristow LLC Top agencies DOI (Department of the Interior) DOT (Department of Transportation)	$31,841,197	0.2%	Rank history: #94 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
89	Seaward Marine Services, LLC Top agencies Navy (Department of the Navy)	$31,403,549	0.2%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
90	Iron Mountain Incorporated 6 awardees, including Iron Mountain Information Management LLC and Iron Mountain Secure Shredding, Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$29,716,262	0.1%	Rank history: #59 in FY2022, #73 in FY2023, #64 in FY2024 and not on the FY2025 list; up 78 since FY2020.
91	Minnesota Aviation, LLC Through Sun Country, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$28,836,511	0.1%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
92	Strategic Airborne Operations JV, LLC Top agencies Navy (Department of the Navy)	$28,448,505	0.1%	Rank history: not on the FY2022–FY2025 lists; up 42 since FY2020.
93	Synergy Logistics Services II LLC Top agencies DLA (Defense Logistics Agency)	$27,242,005	0.1%	Rank history: #99 in FY2022, #99 in FY2023 and not on the FY2024–FY2025 lists; up 35 since FY2020.
94	S.C.A. - Shipping Consultants Associated Ltd. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$26,814,664	0.1%	Rank history: #39 in FY2022, #43 in FY2023, #37 in FY2024 and #36 in FY2025; up 35 since FY2020.
95	Southwest Airlines Co. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$25,856,635	0.1%	Rank history: not on the FY2022–FY2025 lists; up 79 since FY2020.
96	Navarre Corporation Top agencies VA (Department of Veterans Affairs)	$25,843,549	0.1%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
97	AMR Corporation Through American Airlines, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) VA (Department of Veterans Affairs)	$25,000,703	0.1%	Rank history: not on the FY2022–FY2025 lists; up 83 since FY2020.
98	Louis Berger U.S. Inc. 2 awardees, including VGS Aircraft Services, Inc. and VGS Infrastructure Services Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Army (Department of the Army)	$24,996,401	0.1%	Rank history: not on the FY2022–FY2025 lists; up 200 since FY2020.
99	Lynden Inc. 3 awardees, including Lynden Air Cargo, LLC and Alaska Marine Lines Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHS (Department of Homeland Security)	$24,748,184	0.1%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; up 149 since FY2020.
100	BLG Autoterminal Bremerhaven GMBH & CO.KG Top agencies Army (Department of the Army)	$24,265,106	0.1%	Rank history: not on the FY2022–FY2025 lists; up 147 since FY2020.

Show 75 more

100 of 3,585 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 48-49

Code	Net obligations	Largest contractor
488 Support Activities for Transportation	$8,350,867,894	Amentum Services, Inc.
481 Air Transportation	$4,072,654,916	United Launch Alliance, L.L.C.
493 Warehousing and Storage	$2,910,176,664	Mckesson Corporation
483 Water Transportation	$2,442,485,189	Maersk Inc.
492 Couriers and Messengers	$635,354,750	Fedex Corp
485 Transit and Ground Passenger Transportation	$312,790,223	Navarre Corporation
484 Truck Transportation	$203,493,264	First National Company
486 Pipeline Transportation	$193,298,298	Tidewater, Inc.
491 Postal Service	$46,751,187	Servicesource Inc.

How this ranking works

Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $20.7 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 48-49 contractors in FY2021?

1. Mckesson Corporation ($1.49B), 2. Amentum Services, Inc. ($883M), 3. Fedex Corp ($845M), 4. M1 Support Services, L.P. ($784M), 5. Vertex Aerospace LLC ($761M), 6. United Launch Alliance, L.L.C. ($633M), 7. Patriot Team ($582M), 8. RTX Corporation ($566M), 9. Space Exploration Technologies Corp. ($519M), 10. Crowley Government Services Inc. ($503M).

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