Top 100 Contractors in NAICS 483: Water Transportation, Aug 2025–Jul 2026

Name: Top 100 Contractors in NAICS 483: Water Transportation, Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 483: Water Transportation, FY2025.

The top 10 won 61% of NAICS 483 contract dollars from August 2025 through July 2026

Contract obligations: $3,918,950,674 Net of deobligations, by contracts coded NAICS 483 or a code under it
Contractors: 145 Parent companies with an obligation
Largest contractor: Crowley Government Services, Inc. $363 million, 8.8% of obligations
Data as of: Nov 5, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Crowley Government Services, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$363,395,498	8.8%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023, #2 in FY2024 and #2 in FY2025; up 1 since Aug 2024–Jul 2025.
2	Patriot Contract Services, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DOT (Department of Transportation)	$354,710,251	8.5%	Rank history: #3 in FY2021, #2 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 1 since Aug 2024–Jul 2025.
3	U.S. Marine Management LLC 2 awardees, including Maersk Line, Limited Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$333,197,083	8.0%	Rank history: #55 in FY2021, not on the FY2022–FY2023 lists, #7 in FY2024 and #3 in FY2025; up 2 since Aug 2024–Jul 2025.
4	Tote Services, LLC Top agencies Navy (Department of the Navy) DOT (Department of Transportation) MDA (DOD Missile Defense Agency)	$325,578,506	7.8%	Rank history: #51 in FY2021, #72 in FY2022, not on the FY2023 list, #5 in FY2024 and #5 in FY2025; unchanged since Aug 2024–Jul 2025.
5	Ocean Shipholdings, Inc. 3 awardees, including Ocean Ships, Inc. and Ocean Duchess, Inc. Top agencies Navy (Department of the Navy)	$281,326,460	6.8%	Rank history: #7 in FY2021, #4 in FY2022, #4 in FY2023, #4 in FY2024 and #4 in FY2025; down 2 since Aug 2024–Jul 2025.
6	American Roll-On Roll-Off Carrier, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$269,164,888	6.5%	Rank history: #8 in FY2021, #12 in FY2022, #7 in FY2023, #3 in FY2024 and #6 in FY2025; unchanged since Aug 2024–Jul 2025.
7	Schuyler Line Navigation Company LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$206,864,543	5.0%	Rank history: #31 in FY2021, #58 in FY2022, not on the FY2023 list, #6 in FY2024 and #8 in FY2025; unchanged since Aug 2024–Jul 2025.
8	Liberty Global Logistics LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$137,446,892	3.3%	Rank history: not on the FY2021–FY2023 lists, #12 in FY2024 and #7 in FY2025; up 5 since Aug 2024–Jul 2025.
9	Red River Technology LLC Through Transoceanic Cable Ship Company LLC Top agencies Navy (Department of the Navy)	$125,960,068	3.0%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; up 21 since Aug 2024–Jul 2025.
10	Hornbeck Offshore Operators LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$125,626,285	3.0%	Rank history: #49 in FY2021, not on the FY2022–FY2023 lists, #13 in FY2024 and #10 in FY2025; unchanged since Aug 2024–Jul 2025.
11	Keystone Shipping Services, Inc. Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$117,692,990	2.8%	Rank history: #93 in FY2021, #73 in FY2022, not on the FY2023 list, #17 in FY2024 and #9 in FY2025; unchanged since Aug 2024–Jul 2025.
12	Matson Navigation Company Inc. Top agencies USAF (Department of the Air Force)	$97,812,906	2.4%	Rank history: #6 in FY2021, #7 in FY2022, #8 in FY2023, #11 in FY2024 and #14 in FY2025; up 11 since Aug 2024–Jul 2025.
13	Waterman Transport Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$93,908,095	2.3%	Rank history: not on the FY2021–FY2023 lists, #41 in FY2024 and #11 in FY2025; down 1 since Aug 2024–Jul 2025.
14	American President Lines, LLC Top agencies USAF (Department of the Air Force)	$92,397,044	2.2%	Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and #12 in FY2025; up 2 since Aug 2024–Jul 2025.
15	US Ocean LLC Top agencies USAF (Department of the Air Force)	$84,360,199	2.0%	Rank history: #20 in FY2021, #19 in FY2022, #16 in FY2023, #16 in FY2024 and #13 in FY2025; up 4 since Aug 2024–Jul 2025.
16	Pacific-Gulf Marine, Inc. Top agencies Navy (Department of the Navy)	$75,533,832	1.8%	Rank history: #21 in FY2021, #14 in FY2022, #17 in FY2023, #19 in FY2024 and #25 in FY2025; up 9 since Aug 2024–Jul 2025.
17	Crowley-Stena Marine Solutions LLC Top agencies Navy (Department of the Navy)	$71,833,799	1.7%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #20 in FY2025; up 4 since Aug 2024–Jul 2025.
18	Sealift Holdings Inc. Through Sealift Inc. of Delaware Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$70,747,577	1.7%	Rank history: #10 in FY2021, #16 in FY2022, #14 in FY2023, #10 in FY2024 and #19 in FY2025; down 3 since Aug 2024–Jul 2025.
19	Farrell Lines Incorporated Top agencies USAF (Department of the Air Force)	$64,563,885	1.6%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2023, #14 in FY2024 and #16 in FY2025; up 5 since Aug 2024–Jul 2025.
20	Federated Maritime LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$62,504,837	1.5%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023, #33 in FY2024 and #28 in FY2025; up 11 since Aug 2024–Jul 2025.
21	Overseas Shipholding Group Inc. 3 awardees, including Mykonos Tanker LLC, Overseas Sun Coast LLC and Santorini Tanker LLC Top agencies Navy (Department of the Navy)	$53,566,071	1.3%	Rank history: #27 in FY2021, #28 in FY2022, #15 in FY2023, #36 in FY2024 and #26 in FY2025; up 5 since Aug 2024–Jul 2025.
22	Alpha Marine Services LLC Top agencies Navy (Department of the Navy)	$49,852,084	1.2%	Rank history: #22 in FY2021, #26 in FY2022, #23 in FY2023, #23 in FY2024 and #21 in FY2025; down 2 since Aug 2024–Jul 2025.
23	TSP Tankers Holdings LLC Top agencies Navy (Department of the Navy)	$48,920,960	1.2%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and #18 in FY2025; down 5 since Aug 2024–Jul 2025.
24	Hapag-Lloyd Usa, LLC Top agencies USAF (Department of the Air Force)	$46,705,803	1.1%	Rank history: #19 in FY2021, #20 in FY2022, #20 in FY2023, #24 in FY2024 and #24 in FY2025; up 5 since Aug 2024–Jul 2025.
25	Seaward Services, Inc. Top agencies Navy (Department of the Navy)	$37,164,136	0.9%	Rank history: #34 in FY2021, #22 in FY2022, #26 in FY2023, #37 in FY2024 and #30 in FY2025; up 3 since Aug 2024–Jul 2025.
26	The Pasha Group 2 awardees, including Sunrise Vessel Operations LLC and Pasha Hawaii Holdings LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$34,469,632	0.8%	Rank history: #38 in FY2021, #32 in FY2022, #30 in FY2023, #48 in FY2024 and #22 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	Trafigura Maritime Logistics Pte. Ltd. Top agencies Navy (Department of the Navy)	$27,713,243	0.7%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; up 32 since Aug 2024–Jul 2025.
28	American Petroleum Tankers LLC Top agencies Navy (Department of the Navy)	$25,795,729	0.6%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #15 in FY2025; down 19 since Aug 2024–Jul 2025.
29	Young Brothers LLC 4 awardees, including Tote Maritime Alaska, LLC, Foss Maritime Company, Llc. and Foss International LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOI (Department of the Interior)	$22,006,134	0.5%	Rank history: #4 in FY2021, #5 in FY2022, #6 in FY2023, #20 in FY2024 and #32 in FY2025; up 5 since Aug 2024–Jul 2025.
30	Superior Maritime Services, Inc. Top agencies USAF (Department of the Air Force)	$21,859,806	0.5%	Rank history: #26 in FY2021, #29 in FY2022, #25 in FY2023, #29 in FY2024 and #31 in FY2025; up 2 since Aug 2024–Jul 2025.
31	Vane Line Bunkering, LLC Top agencies DLA (Defense Logistics Agency)	$19,365,946	0.5%	Rank history: #23 in FY2021, #25 in FY2022, #27 in FY2023, #30 in FY2024 and #23 in FY2025; down 17 since Aug 2024–Jul 2025.
32	Fairwater Commercial Management LLC Top agencies Navy (Department of the Navy)	$15,384,488	0.4%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; up 12 since Aug 2024–Jul 2025.
33	Tote Maritime Puerto Rico, LLC Top agencies USAF (Department of the Air Force)	$12,275,714	0.3%	Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and #35 in FY2025; up 6 since Aug 2024–Jul 2025.
34	Liberty Eagle Corporation Top agencies Navy (Department of the Navy)	$10,905,947	0.3%	Rank history: #43 in FY2021, not on the FY2022 list, #53 in FY2023, not on the FY2024 list and #49 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	Dewitt Companies Ltd., LLC Top agencies DHS (Department of Homeland Security)	$9,508,500	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
36	Omni2Max, Inc. Top agencies Navy (Department of the Navy)	$9,233,963	0.2%	Rank history: #36 in FY2021, #31 in FY2022, #39 in FY2023, #44 in FY2024 and #38 in FY2025; up 4 since Aug 2024–Jul 2025.
37	Battersea Holding Inc. Top agencies Navy (Department of the Navy)	$8,410,106	0.2%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; up 6 since Aug 2024–Jul 2025.
38	Bordelon Marine, L.L.C. Top agencies DHS (Department of Homeland Security)	$7,731,250	0.2%	Rank history: #58 in FY2021, #40 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	Central Marine Logistics Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$7,256,699	0.2%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #33 in FY2025; down 2 since Aug 2024–Jul 2025.
40	Offshore Aviation LLC Top agencies Navy (Department of the Navy)	$6,837,197	0.2%	Rank history: not on the FY2021 list, #96 in FY2022, not on the FY2023 list, #80 in FY2024 and #40 in FY2025; up 2 since Aug 2024–Jul 2025.
41	Cardinal Point Captains Inc. Top agencies EPA (Environmental Protection Agency)	$6,300,000	0.2%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #42 in FY2025; up 4 since Aug 2024–Jul 2025.
42	Jar Assets, LLC Top agencies DLA (Defense Logistics Agency)	$5,150,742	0.1%	Rank history: #24 in FY2021, not on the FY2022–FY2024 lists and #36 in FY2025; down 7 since Aug 2024–Jul 2025.
43	National Shipping of America, LLC Top agencies USAF (Department of the Air Force)	$4,566,442	0.1%	Rank history: #95 in FY2021, #85 in FY2022, #67 in FY2023, #85 in FY2024 and #45 in FY2025; up 32 since Aug 2024–Jul 2025.
44	Dann Ocean Towing, Inc. Top agencies Navy (Department of the Navy)	$4,349,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
45	Handytankers K / S Top agencies Navy (Department of the Navy)	$4,039,000	0.1%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
46	Curtin Maritime Corp Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$3,880,880	0.1%	Rank history: #41 in FY2021, #63 in FY2022, #75 in FY2023, #70 in FY2024 and #50 in FY2025; up 32 since Aug 2024–Jul 2025.
47	Mercuria Energy America LLC Top agencies Navy (Department of the Navy)	$3,875,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
48	Shaver Transportation Co Top agencies Army (Department of the Army)	$3,764,778	0.1%	Rank history: not on the FY2021 list, #47 in FY2022, #55 in FY2023, #58 in FY2024 and #39 in FY2025; down 2 since Aug 2024–Jul 2025.
49	Pacific Maritime Group Inc. Top agencies Navy (Department of the Navy)	$3,669,265	0.1%	Rank history: #76 in FY2021, #52 in FY2022, #49 in FY2023, #66 in FY2024 and #46 in FY2025; up 2 since Aug 2024–Jul 2025.
50	Fishing Vessel North Wind, Inc. Top agencies Commerce (Department of Commerce)	$3,281,250	0.1%	Rank history: #40 in FY2021, #33 in FY2022, #40 in FY2023, #42 in FY2024 and #43 in FY2025; down 12 since Aug 2024–Jul 2025.
51	Greger Pacific Marine Inc. Top agencies Navy (Department of the Navy)	$2,970,500	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	Lynden Inc. Through Alaska Marine Lines Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$2,928,239	0.1%	Rank history: #46 in FY2021, #38 in FY2022, #45 in FY2023, #56 in FY2024 and #51 in FY2025; up 9 since Aug 2024–Jul 2025.
53	Northcliffe Ocean Shipping & Trading Company Inc. Top agencies USAF (Department of the Air Force)	$2,759,464	0.1%	Rank history: #50 in FY2021, #48 in FY2022, #70 in FY2023, #54 in FY2024 and #52 in FY2025; up 10 since Aug 2024–Jul 2025.
54	Hawaii Resource Group LLC Top agencies DOI (Department of the Interior) Navy (Department of the Navy)	$2,735,521	0.1%	Rank history: #57 in FY2021, #45 in FY2022, #51 in FY2023, #59 in FY2024 and #59 in FY2025; up 2 since Aug 2024–Jul 2025.
55	Trailer Bridge Inc. Top agencies USAF (Department of the Air Force)	$2,569,965	0.1%	Rank history: #52 in FY2021, #42 in FY2022, #36 in FY2023, #46 in FY2024 and #47 in FY2025; down 8 since Aug 2024–Jul 2025.
56	C & M Industries, Inc. Top agencies Navy (Department of the Navy)	$2,319,562	0.1%	Rank history: #78 in FY2021, #64 in FY2022, #57 in FY2023, #68 in FY2024 and #60 in FY2025; up 12 since Aug 2024–Jul 2025.
57	B & N Fisheries Company Top agencies Commerce (Department of Commerce)	$2,235,809	0.1%	Rank history: #98 in FY2021, #44 in FY2022, #52 in FY2023, #65 in FY2024 and #56 in FY2025; down 5 since Aug 2024–Jul 2025.
58	Reederei TMS "Atlantic Mate" GMBH & Co. KG Top agencies Navy (Department of the Navy)	$2,147,000	0.1%	Rank history: #80 in FY2021, #61 in FY2022, #48 in FY2023, not on the FY2024 list and #70 in FY2025; up 15 since Aug 2024–Jul 2025.
59	Starfleet Marine Transportation, Inc. Top agencies Navy (Department of the Navy)	$1,923,342	<0.1%	Rank history: #59 in FY2021, #54 in FY2022, #58 in FY2023, #72 in FY2024 and #68 in FY2025; up 11 since Aug 2024–Jul 2025.
60	Western Towboat Company Top agencies Navy (Department of the Navy)	$1,729,300	<0.1%	Rank history: #74 in FY2021, not on the FY2022 list, #61 in FY2023, #55 in FY2024 and #61 in FY2025; down 5 since Aug 2024–Jul 2025.
61	Seatac Marine Services, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,668,909	<0.1%	Rank history: not on the FY2021 list, #57 in FY2022, #46 in FY2023, not on the FY2024 list and #72 in FY2025; up 46 since Aug 2024–Jul 2025.
62	Transnow Inc. Top agencies USDA (Department of Agriculture)	$1,406,747	<0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023, #63 in FY2024 and #54 in FY2025; down 5 since Aug 2024–Jul 2025.
63	Mainsail - Oasis Joint Venture LLC Top agencies Navy (Department of the Navy)	$1,395,782	<0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023, not on the FY2024 list and #55 in FY2025; up 9 since Aug 2024–Jul 2025.
64	United States Seafoods, LLC Top agencies Commerce (Department of Commerce)	$1,366,500	<0.1%	Rank history: #53 in FY2021, #49 in FY2022, #56 in FY2023, #67 in FY2024 and #62 in FY2025; down 14 since Aug 2024–Jul 2025.
65	The Jankovich Company, LLC Top agencies Navy (Department of the Navy)	$1,359,600	<0.1%	Rank history: not on the FY2021–FY2023 lists, #62 in FY2024 and #48 in FY2025; down 12 since Aug 2024–Jul 2025.
66	Stasinos Marine LLC Top agencies Navy (Department of the Navy)	$1,273,800	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Aug 2024–Jul 2025.
67	TW Logistics, LLC Top agencies USDA (Department of Agriculture)	$920,732	<0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, #91 in FY2024 and #74 in FY2025; up 12 since Aug 2024–Jul 2025.
68	Aqua Gulf Supply Chain Solutions, LLC Top agencies USDA (Department of Agriculture)	$873,175	<0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 32 since Aug 2024–Jul 2025.
69	American Marine Corporation Top agencies Navy (Department of the Navy)	$673,450	<0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, #61 in FY2024 and #58 in FY2025; down 9 since Aug 2024–Jul 2025.
70	Patriotic Excursions LLC Top agencies Navy (Department of the Navy)	$653,166	<0.1%	Rank history: not on the FY2021 list, #95 in FY2022, #78 in FY2023, #87 in FY2024 and #84 in FY2025; up 18 since Aug 2024–Jul 2025.
71	F / V Last Straw Ltd. Top agencies Commerce (Department of Commerce)	$554,233	<0.1%	Rank history: not on the FY2021 list, #77 in FY2022, not on the FY2023 list, #82 in FY2024 and #76 in FY2025; up 10 since Aug 2024–Jul 2025.
72	Ex-1 Corporation Top agencies Commerce (Department of Commerce)	$510,493	<0.1%	Rank history: not on the FY2021 list, #80 in FY2022, #86 in FY2023, #84 in FY2024 and #77 in FY2025; up 11 since Aug 2024–Jul 2025.
73	Synergy Marine, LLC Top agencies Army (Department of the Army)	$504,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	MS. Julie, Inc. Top agencies Commerce (Department of Commerce)	$496,480	<0.1%	Rank history: #72 in FY2021, not on the FY2022 list, #77 in FY2023, not on the FY2024 list and #79 in FY2025; up 11 since Aug 2024–Jul 2025.
75	Synergy Partners LLC Top agencies Commerce (Department of Commerce)	$491,764	<0.1%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023, #74 in FY2024 and #53 in FY2025; down 13 since Aug 2024–Jul 2025.
76	Chantal C, Inc. Top agencies Commerce (Department of Commerce)	$486,480	<0.1%	Rank history: #89 in FY2021, #84 in FY2022, #72 in FY2023, not on the FY2024 list and #80 in FY2025; up 10 since Aug 2024–Jul 2025.
77	University of Georgia Research Foundation, Inc. Top agencies Commerce (Department of Commerce)	$476,604	<0.1%	Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and #73 in FY2025; unchanged since Aug 2024–Jul 2025.
78	Searcherhawaii LLC Top agencies DOI (Department of the Interior)	$425,440	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
79	Ceiba Adventures Inc Top agencies DOI (Department of the Interior)	$397,048	<0.1%	Rank history: #69 in FY2021, #62 in FY2022, #74 in FY2023, #83 in FY2024 and #81 in FY2025; up 10 since Aug 2024–Jul 2025.
80	Eclipse Group, Inc. Top agencies DOI (Department of the Interior)	$386,703	<0.1%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and not on the FY2025 list; up 31 since Aug 2024–Jul 2025.
81	Tidewater Barge Lines Inc. Top agencies Army (Department of the Army)	$374,195	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	Saints & Angels Scalloping Company, LLC Top agencies Commerce (Department of Commerce)	$365,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83	Keystone Shipping Co Top agencies Navy (Department of the Navy)	$339,197	<0.1%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; down 47 since Aug 2024–Jul 2025.
84	K.i. Kogyo Ltd. Top agencies Navy (Department of the Navy)	$290,121	<0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023, not on the FY2024 list and #85 in FY2025; up 6 since Aug 2024–Jul 2025.
85	Makai Inc. Top agencies Commerce (Department of Commerce) DOI (Department of the Interior)	$288,500	<0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023, #99 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
86	Midwest Marine Contractors LLC Top agencies Army (Department of the Army)	$284,267	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	Northwestern Michigan College Top agencies Navy (Department of the Navy)	$263,595	<0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
88	Norport, Inc. Top agencies Commerce (Department of Commerce)	$249,500	<0.1%	Rank history: not on the FY2021–FY2023 lists, #100 in FY2024 and #87 in FY2025; up 3 since Aug 2024–Jul 2025.
89	Dependable Highway Express Inc. Through Dhx-Dependable Hawaiian Express Inc. Top agencies USDA (Department of Agriculture)	$231,015	<0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #82 in FY2025; down 9 since Aug 2024–Jul 2025.
90	California Wetfish Producers Association Top agencies Commerce (Department of Commerce)	$227,798	<0.1%	Rank history: not on the FY2021 list, #94 in FY2022, not on the FY2023–FY2024 lists and #92 in FY2025; up 5 since Aug 2024–Jul 2025.
91	Joshua D Goodwin Top agencies Navy (Department of the Navy)	$219,830	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	Yabudoken Co. Top agencies Navy (Department of the Navy)	$216,527	<0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; up 4 since Aug 2024–Jul 2025.
93	Fairlead Boatworks, Inc. Top agencies Navy (Department of the Navy)	$186,321	<0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; down 1 since Aug 2024–Jul 2025.
94	Ships Services Inc. Top agencies Commerce (Department of Commerce)	$158,400	<0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
95	Bridgehead Co., Ltd Top agencies Navy (Department of the Navy)	$150,490	<0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; down 2 since Aug 2024–Jul 2025.
96	Clipper Oil, Inc. Top agencies Navy (Department of the Navy)	$150,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	BEI Tactical LLC Top agencies Navy (Department of the Navy)	$144,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	All-American Farms Inc. Top agencies USDA (Department of Agriculture)	$135,581	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	Ryuseki Corporation Through Okinawa Marine Service Co.,Ltd. Top agencies Navy (Department of the Navy)	$128,317	<0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; new, not ranked in Aug 2024–Jul 2025.
100	Progesco Consignaciones SL. Top agencies Navy (Department of the Navy)	$123,581	<0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023, not on the FY2024 list and #98 in FY2025; up 9 since Aug 2024–Jul 2025.

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100 of 145 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 483

Code	Net obligations	Largest contractor
4831 Deep Sea, Coastal, and Great Lakes Water Transportation	$3,884,755,287	Crowley Government Services, Inc.
4832 Inland Water Transportation	$34,195,387	Vane Line Bunkering, LLC

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 $4.15 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

Who were the top 10 NAICS 483 contractors in Aug 2025–Jul 2026?

1. Crowley Government Services, Inc. ($363M), 2. Patriot Contract Services, LLC ($355M), 3. U.S. Marine Management LLC ($333M), 4. Tote Services, LLC ($326M), 5. Ocean Shipholdings, Inc. ($281M), 6. American Roll-On Roll-Off Carrier, LLC ($269M), 7. Schuyler Line Navigation Company LLC ($207M), 8. Liberty Global Logistics LLC ($137M), 9. Red River Technology LLC ($126M), 10. Hornbeck Offshore Operators LLC ($126M).

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