Top 100 Contractors in NAICS 4883: Support Activities for Water Transportation, FY2024

Name: Top 100 Contractors in NAICS 4883: Support Activities for Water Transportation, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 41% of FY2024 NAICS 4883 contract dollars

Contract obligations: $902,141,321 Net of deobligations, by contracts coded NAICS 4883 or a code under it
Contractors: 324 Parent companies with an obligation
Largest contractor: S.C.A. - Shipping Consultants Associated Ltd. $113 million, 11.5% 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	S.C.A. - Shipping Consultants Associated Ltd. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$112,739,651	11.5%	Rank history: #4 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	Donjon Marine Co., LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$73,435,687	7.5%	Rank history: #6 in FY2021, #13 in FY2022, #7 in FY2023 and #37 in FY2025; up 5 since FY2023.
3	Global Defense Logistics S.R.L. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$40,491,625	4.1%	Rank history: #10 in FY2021, #3 in FY2022, #4 in FY2023 and #8 in FY2025; up 1 since FY2023.
4	Global Pcci (Gpc) Top agencies Navy (Department of the Navy) Army (Department of the Army)	$39,621,205	4.0%	Rank history: #1 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2025; down 2 since FY2023.
5	Inchcape Shipping Services Dubai LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$27,975,764	2.8%	Rank history: #26 in FY2021, #7 in FY2022, #3 in FY2023 and #7 in FY2025; down 2 since FY2023.
6	Versability Resources, Inc. Top agencies Navy (Department of the Navy)	$25,559,390	2.6%	Rank history: #8 in FY2021, #5 in FY2022, #6 in FY2023 and #6 in FY2025; unchanged since FY2023.
7	Alpha Marine Services LLC Top agencies Navy (Department of the Navy)	$23,755,929	2.4%	Rank history: #7 in FY2021, #6 in FY2022, #8 in FY2023 and #5 in FY2025; up 1 since FY2023.
8	Moran Transportation Company 2 awardees, including Moran Towing Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$22,572,813	2.3%	Rank history: #18 in FY2021, #12 in FY2022, #9 in FY2023 and #10 in FY2025; up 1 since FY2023.
9	Tone Communication Services, LLC Through Cooper / Ports America LLC Top agencies Army (Department of the Army)	$20,480,788	2.1%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
10	Waypoint LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$20,436,731	2.1%	Rank history: #41 in FY2021, #10 in FY2022, #10 in FY2023 and #3 in FY2025; unchanged since FY2023.
11	Delaware River Stevedores, Inc. Top agencies Army (Department of the Army)	$16,826,452	1.7%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and #19 in FY2025; up 67 since FY2023.
12	Geranoi Arapis EE Top agencies Army (Department of the Army)	$15,652,399	1.6%	Rank history: #30 in FY2021, #39 in FY2022, #19 in FY2023 and not on the FY2025 list; up 7 since FY2023.
13	Cooper/Ports America LLC Top agencies Army (Department of the Army)	$15,613,205	1.6%	Rank history: #15 in FY2021, #8 in FY2022, #5 in FY2023 and not on the FY2025 list; down 8 since FY2023.
14	Parsh Marine (S) Pte. Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$14,603,119	1.5%	Rank history: #93 in FY2021, #17 in FY2022, #13 in FY2023 and #22 in FY2025; down 1 since FY2023.
15	Pole Star Space Applications (USA) Inc. Top agencies DHS (Department of Homeland Security)	$13,996,510	1.4%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2025; up 129 since FY2023.
16	SSA Atlantic LLC Top agencies Army (Department of the Army)	$13,280,246	1.4%	Rank history: #14 in FY2021, #24 in FY2022, #20 in FY2023 and #15 in FY2025; up 4 since FY2023.
17	Verbrugge Zeeland Terminals B.V. Top agencies Army (Department of the Army)	$12,824,694	1.3%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and not on the FY2025 list; up 30 since FY2023.
18	Rhenus Midgard GMBH & Co. KG Top agencies Army (Department of the Army)	$11,023,921	1.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2025; new.
19	Great Eastern Group, Inc. Top agencies Navy (Department of the Navy)	$10,627,624	1.1%	Rank history: #13 in FY2021, #19 in FY2022, #16 in FY2023 and #25 in FY2025; down 3 since FY2023.
20	Military Services Australia Pty. Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$10,463,464	1.1%	Rank history: #87 in FY2021, #54 in FY2022, #17 in FY2023 and #18 in FY2025; down 3 since FY2023.
21	Rethmann AG & Co. KG Through Rhenus Midgard GMBH & Co. KG Top agencies Army (Department of the Army)	$10,381,942	1.1%	Rank history: #58 in FY2021, not on the FY2022 list, #41 in FY2023 and not on the FY2025 list; up 20 since FY2023.
22	Pacific Layberthing South, LLC Top agencies DOT (Department of Transportation)	$10,173,398	1.0%	Rank history: #24 in FY2021, #9 in FY2022, #15 in FY2023 and #12 in FY2025; down 7 since FY2023.
23	Downie Jones Ship Stores Limited Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$9,718,370	1.0%	Rank history: #83 in FY2021, #35 in FY2022, #31 in FY2023 and #33 in FY2025; up 8 since FY2023.
24	Bowhead Marine Support Services, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$9,540,524	1.0%	Rank history: #20 in FY2021, #68 in FY2022, not on the FY2023 list and #36 in FY2025; returned.
25	DE LA Fuente Construction Inc. Top agencies Navy (Department of the Navy)	$9,517,961	1.0%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and #76 in FY2025; up 8 since FY2023.
26	Ems Shipping & Trading GMBH Top agencies Army (Department of the Army) Navy (Department of the Navy)	$8,917,129	0.9%	Rank history: #100 in FY2021, #86 in FY2022, #49 in FY2023 and #27 in FY2025; up 23 since FY2023.
27	American Roll-on Roll-Off Carrier LLC 2 awardees, including Transcar GMBH Top agencies Army (Department of the Army)	$8,692,908	0.9%	Rank history: #11 in FY2021, #57 in FY2022, #12 in FY2023 and not on the FY2025 list; down 15 since FY2023.
28	Oaktree Capital Management L.P. 2 awardees, including Marine Terminals Corp and Ports America Inc. Top agencies Army (Department of the Army)	$8,569,004	0.9%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and #81 in FY2025; up 57 since FY2023.
29	Bct-Baltycki Terminal Kontenerowy SP. Z O.o. Top agencies Army (Department of the Army)	$8,561,655	0.9%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
30	American Roll-On Roll-Off Carrier Group, Inc. Top agencies Army (Department of the Army)	$8,481,032	0.9%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
31	Talton Marine Terminal, LLC Top agencies DOT (Department of Transportation)	$7,731,927	0.8%	Rank history: not on the FY2021 list, #37 in FY2022, #24 in FY2023 and #13 in FY2025; down 7 since FY2023.
32	National Shipping Agency S.A. Top agencies Navy (Department of the Navy)	$7,694,798	0.8%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #55 in FY2025; up 21 since FY2023.
33	Jones Stevedoring Company Top agencies Army (Department of the Army)	$6,845,383	0.7%	Rank history: #60 in FY2021, #70 in FY2022, #50 in FY2023 and #62 in FY2025; up 17 since FY2023.
34	Ops Corporation Top agencies Navy (Department of the Navy)	$6,726,180	0.7%	Rank history: #38 in FY2021, #38 in FY2022, #37 in FY2023 and #49 in FY2025; up 3 since FY2023.
35	P & R Water Taxi LLC Top agencies Navy (Department of the Navy)	$6,697,861	0.7%	Rank history: #39 in FY2021, #30 in FY2022, #26 in FY2023 and #31 in FY2025; down 9 since FY2023.
36	Cargo Transport Systems Company Top agencies Army (Department of the Army)	$6,672,864	0.7%	Rank history: #21 in FY2021, #42 in FY2022, #29 in FY2023 and #52 in FY2025; down 7 since FY2023.
37	Daekee Global Co.,Ltd Top agencies Navy (Department of the Navy)	$6,154,932	0.6%	Rank history: #71 in FY2021, #21 in FY2022, #25 in FY2023 and #38 in FY2025; down 12 since FY2023.
38	Smit Holding Singapore PTE. Ltd. Through Smit Singapore PTE Ltd Top agencies Navy (Department of the Navy)	$6,136,209	0.6%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and #14 in FY2025; down 11 since FY2023.
39	Systems Application & Technologies Inc. Top agencies Navy (Department of the Navy)	$5,970,355	0.6%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2025; new.
40	Mlsusa Corp Top agencies Navy (Department of the Navy)	$5,675,320	0.6%	Rank history: #28 in FY2021, not on the FY2022 list, #54 in FY2023 and #54 in FY2025; up 14 since FY2023.
41	US Facilities Inc. Top agencies Army (Department of the Army)	$5,529,082	0.6%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2025; new.
42	Ambyth Shipping Micronesia, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,400,828	0.6%	Rank history: not on the FY2021 list, #63 in FY2022, #67 in FY2023 and #50 in FY2025; up 25 since FY2023.
43	Metson Marine Services, Inc. Top agencies Navy (Department of the Navy)	$5,375,143	0.5%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2025; new.
44	C. and S. Economou Financial Services Ltd Top agencies Army (Department of the Army)	$4,807,621	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
45	Tlingit Haida Tribal Business Corporation Through Kira Construction Management LLC Top agencies Navy (Department of the Navy)	$4,725,171	0.5%	Rank history: #29 in FY2021, #66 in FY2022, #28 in FY2023 and not on the FY2025 list; down 17 since FY2023.
46	Toll Holdings Limited Through Toll Remote Logistics PTY Ltd Top agencies Navy (Department of the Navy) Army (Department of the Army)	$4,284,310	0.4%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; up 106 since FY2023.
47	Sabine Marine Group Inc. Top agencies Navy (Department of the Navy)	$3,921,222	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
48	Intrepid Eagle Logistics, Inc. Top agencies Army (Department of the Army)	$3,911,783	0.4%	Rank history: #69 in FY2021, not on the FY2022 list, #65 in FY2023 and #82 in FY2025; up 17 since FY2023.
49	Maryland Maritime, Inc. Top agencies DOT (Department of Transportation)	$3,906,233	0.4%	Rank history: #47 in FY2021, #64 in FY2022, #61 in FY2023 and #29 in FY2025; up 12 since FY2023.
50	Huntington Ingalls Industries, Inc. Through HII Fleet Support Group LLC Top agencies Army (Department of the Army)	$3,874,263	0.4%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2025; up 81 since FY2023.
51	BLG Autoterminal Bremerhaven GMBH & Co. KG Top agencies Army (Department of the Army)	$3,833,089	0.4%	Rank history: #5 in FY2021, not on the FY2022–FY2023 lists and #11 in FY2025; returned.
52	Seafix Incorporated Top agencies Navy (Department of the Navy)	$3,800,000	0.4%	Rank history: #33 in FY2021, #45 in FY2022, #43 in FY2023 and #43 in FY2025; down 9 since FY2023.
53	Tranlogistics LLC Top agencies Army (Department of the Army)	$3,621,384	0.4%	Rank history: not on the FY2021 list, #83 in FY2022, not on the FY2023 list and not on the FY2025 list; up 49 since FY2023.
54	Marine Exchange of Alaska, Inc. Top agencies DHS (Department of Homeland Security)	$3,535,215	0.4%	Rank history: #45 in FY2021, #48 in FY2022, #42 in FY2023 and #53 in FY2025; down 12 since FY2023.
55	Virginia International Terminals, LLC Top agencies Army (Department of the Army)	$3,415,369	0.3%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2025; new.
56	Asahi Tanker Co.,Ltd. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$3,364,364	0.3%	Rank history: #61 in FY2021, #44 in FY2022, #36 in FY2023 and #51 in FY2025; down 20 since FY2023.
57	MC Allister Towing & Transportation Company Inc 4 awardees, including Mcallister Towing and Transportation Company, Inc., Mcallister Towing of Narragansett Bay, LLC and Mcallister Towing of Florida Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$3,262,578	0.3%	Rank history: #76 in FY2021, #69 in FY2022, #80 in FY2023 and not on the FY2025 list; up 23 since FY2023.
58	Thames Towboat Co Inc. Top agencies Navy (Department of the Navy)	$3,164,752	0.3%	Rank history: #62 in FY2021, #52 in FY2022, #51 in FY2023 and #34 in FY2025; down 7 since FY2023.
59	Dongwon Loex Co. Ltd. Top agencies Army (Department of the Army)	$3,115,200	0.3%	Rank history: #67 in FY2021, #78 in FY2022, #64 in FY2023 and not on the FY2025 list; up 5 since FY2023.
60	American President Lines, LLC Top agencies Army (Department of the Army)	$3,111,099	0.3%	Rank history: #53 in FY2021, not on the FY2022–FY2023 lists and #69 in FY2025; returned.
61	Cabras Marine Corporation Top agencies Navy (Department of the Navy)	$3,065,382	0.3%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and #48 in FY2025; down 22 since FY2023.
62	Lind Marine LLC Top agencies DOI (Department of the Interior)	$2,980,652	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
63	Pasha Hawaii Holdings LLC Top agencies DOT (Department of Transportation)	$2,940,133	0.3%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and #28 in FY2025; up 32 since FY2023.
64	California Sealift Terminals, Inc. Top agencies DOT (Department of Transportation)	$2,934,457	0.3%	Rank history: #48 in FY2021, #62 in FY2022, #32 in FY2023 and #45 in FY2025; down 32 since FY2023.
65	Rhoads Industries, Inc. Top agencies Navy (Department of the Navy)	$2,932,322	0.3%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2025; new.
66	Windy Bay Services LLC Top agencies Navy (Department of the Navy)	$2,913,102	0.3%	Rank history: #23 in FY2021, #11 in FY2022, #55 in FY2023 and #100 in FY2025; down 11 since FY2023.
67	Okinawa Stevedoring & Forwarding Co., Ltd. Top agencies Army (Department of the Army)	$2,692,136	0.3%	Rank history: #57 in FY2021, #59 in FY2022, #58 in FY2023 and #80 in FY2025; down 9 since FY2023.
68	BEN Line Agencies (SINGAPORE) PTE Ltd Top agencies Navy (Department of the Navy)	$2,681,158	0.3%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and not on the FY2025 list; up 4 since FY2023.
69	Transcar GMBH Top agencies Army (Department of the Army)	$2,648,028	0.3%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2025; new.
70	Ambassador Services International, LLC Top agencies Army (Department of the Army)	$2,644,309	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
71	General Dynamics Corporation Through Metro Machine Corp. Top agencies DOT (Department of Transportation)	$2,592,740	0.3%	Rank history: #44 in FY2021, #60 in FY2022, #62 in FY2023 and #47 in FY2025; down 9 since FY2023.
72	Black Bull Group Inc. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) DHS (Department of Homeland Security)	$2,542,483	0.3%	Rank history: #96 in FY2021, #23 in FY2022, #18 in FY2023 and #42 in FY2025; down 54 since FY2023.
73	Calista Corp Through Yulista Support Services LLC Top agencies Navy (Department of the Navy)	$2,395,696	0.2%	Rank history: #17 in FY2021, #18 in FY2022, #35 in FY2023 and not on the FY2025 list; down 38 since FY2023.
74	R.e. Staite Engineering, Inc. Top agencies Navy (Department of the Navy)	$2,331,894	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 39 since FY2023.
75	Sunoco Partners Marketing & Terminals L.P. Top agencies DOE (Department of Energy)	$2,300,000	0.2%	Rank history: #52 in FY2021, #51 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
76	Seabulk Logistics Services LLC Top agencies Navy (Department of the Navy)	$2,299,495	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; new.
77	Kira Construction Management LLC Top agencies Navy (Department of the Navy)	$2,256,411	0.2%	Rank history: not on the FY2021 list, #53 in FY2022, not on the FY2023 list and #30 in FY2025; returned.
78	Yulista Support Services LLC Top agencies Navy (Department of the Navy)	$2,223,860	0.2%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
79	Florida Offshore, Inc. Top agencies USAF (Department of the Air Force)	$2,134,148	0.2%	Rank history: #50 in FY2021, #65 in FY2022, #60 in FY2023 and not on the FY2025 list; down 19 since FY2023.
80	Gelasakis Societe Anonyme Top agencies Navy (Department of the Navy)	$2,121,026	0.2%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2025; new.
81	Metson Marine Inc. Through Metson Marine Services, Inc. Top agencies Navy (Department of the Navy)	$1,947,945	0.2%	Rank history: #16 in FY2021, #15 in FY2022, #21 in FY2023 and not on the FY2025 list; down 60 since FY2023.
82	Metal Trades Inc Top agencies Army (Department of the Army)	$1,822,077	0.2%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2025; up 177 since FY2023.
83	Anchor Innovation, Inc. Top agencies Navy (Department of the Navy)	$1,807,475	0.2%	Rank history: #65 in FY2021, #71 in FY2022, #66 in FY2023 and #68 in FY2025; down 17 since FY2023.
84	Global Maritime Logistics Support, Inc. Top agencies Navy (Department of the Navy)	$1,788,217	0.2%	Rank history: not on the FY2021 list, #58 in FY2022, #82 in FY2023 and #44 in FY2025; down 2 since FY2023.
85	Koninklijke Boskalis Westminster N.V. Through Smit Salvage Americas, LLC Top agencies Navy (Department of the Navy)	$1,702,728	0.2%	Rank history: #9 in FY2021, #14 in FY2022, #57 in FY2023 and not on the FY2025 list; down 28 since FY2023.
86	Arijus, UAB Top agencies Army (Department of the Army)	$1,700,482	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 196 since FY2023.
87	Sankyo Co. Ltd. Top agencies Army (Department of the Army)	$1,535,372	0.2%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and not on the FY2025 list; down 10 since FY2023.
88	Cotecna Inspection Inc. Top agencies USDA (Department of Agriculture)	$1,501,224	0.2%	Rank history: #97 in FY2021, #72 in FY2022, #89 in FY2023 and not on the FY2025 list; up 1 since FY2023.
89	Sperry Ocean Dock, Ltd. Top agencies DOT (Department of Transportation)	$1,456,910	0.1%	Rank history: #82 in FY2021, #91 in FY2022, #70 in FY2023 and #77 in FY2025; down 19 since FY2023.
90	Native Hawaiian Veterans LLC Top agencies Navy (Department of the Navy)	$1,410,452	0.1%	Rank history: #98 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
91	KVG LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$1,403,573	0.1%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #73 in FY2025; down 32 since FY2023.
92	Sea Ventures Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security)	$1,326,412	0.1%	Rank history: #64 in FY2021, #75 in FY2022, #87 in FY2023 and #88 in FY2025; down 5 since FY2023.
93	Saltchuk Resources Inc. 2 awardees, including Foss Maritime Company, Llc. and Amnav Maritime, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,278,281	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2025; new.
94	Virginia Pilot Association Top agencies Navy (Department of the Navy)	$1,260,259	0.1%	Rank history: #55 in FY2021, #77 in FY2022, #75 in FY2023 and #96 in FY2025; down 19 since FY2023.
95	Philadelphia Ship Repair LLC Top agencies DOT (Department of Transportation)	$1,161,200	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	Eastex Berthing Inc. Top agencies DOT (Department of Transportation)	$1,136,629	0.1%	Rank history: #85 in FY2021, #98 in FY2022, #98 in FY2023 and #20 in FY2025; up 2 since FY2023.
97	Dunlap Towing Company Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,127,200	0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #99 in FY2025; down 18 since FY2023.
98	Cherokee Nation Mechanical LLC Top agencies DOI (Department of the Interior)	$1,107,161	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
99	Insignia Shipping Services Ltd Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,048,098	0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and #93 in FY2025; down 25 since FY2023.
100	Ryuseki Corporation Through Okinawa Marine Service Co.,Ltd. Top agencies Navy (Department of the Navy)	$1,040,389	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and #72 in FY2025; down 17 since FY2023.

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100 of 324 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 4883

Code	Net obligations	Largest contractor
48831 Port and Harbor Operations	$347,499,474	S.C.A. - Shipping Consultants Associated Ltd.
48832 Marine Cargo Handling	$242,332,536	Versability Resources, Inc.
48839 Other Support Activities for Water Transportation	$216,090,461	Donjon Marine Co., LLC
48833 Navigational Services to Shipping	$96,218,849	Alpha Marine Services 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 $982 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 4883 contractors in FY2024?

1. S.C.A. - Shipping Consultants Associated Ltd. ($113M), 2. Donjon Marine Co., LLC ($73.4M), 3. Global Defense Logistics S.R.L. ($40.5M), 4. Global Pcci (Gpc) ($39.6M), 5. Inchcape Shipping Services Dubai LLC ($28M), 6. Versability Resources, Inc. ($25.6M), 7. Alpha Marine Services LLC ($23.8M), 8. Moran Transportation Company ($22.6M), 9. Tone Communication Services, LLC ($20.5M), 10. Waypoint LLC ($20.4M).

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