Top 63 Contractors in NAICS 488330: Navigational Services to Shipping, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Alpha Marine Services LLC Top agencies Navy (Department of the Navy)	$18,079,640	28.1%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 2 since FY2020.
2	Moran Transportation Company 2 awardees, including Moran Towing Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$7,716,198	12.0%	Rank history: #2 in FY2022, #2 in FY2023, #2 in FY2024 and #3 in FY2025; up 3 since FY2020.
3	Pole Star Space Applications Limited 2 awardees, including Pole Star Space Applications USA Inc. Top agencies DHS (Department of Homeland Security)	$5,128,981	8.0%	Rank history: #3 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
4	Carnival Corporation Top agencies DHS (Department of Homeland Security)	$4,700,000	7.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
5	P & R Water Taxi LLC Top agencies Navy (Department of the Navy)	$2,893,939	4.5%	Rank history: #4 in FY2022, #4 in FY2023, #4 in FY2024 and #5 in FY2025; down 1 since FY2020.
6	Cabras Marine Corporation Top agencies Navy (Department of the Navy)	$2,841,174	4.4%	Rank history: #5 in FY2022, #5 in FY2023, #8 in FY2024 and #7 in FY2025; up 3 since FY2020.
7	Marine Exchange of Alaska, Inc. Top agencies DHS (Department of Homeland Security)	$2,189,200	3.4%	Rank history: #7 in FY2022, #6 in FY2023, #5 in FY2024 and #8 in FY2025; up 23 since FY2020.
8	Moran Towing Corporation 2 awardees Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$2,114,086	3.3%	Rank history: #6 in FY2022, not on the FY2023–FY2024 lists and #2 in FY2025; down 7 since FY2020.
9	Florida Offshore, Inc. Top agencies USAF (Department of the Air Force)	$1,922,880	3.0%	Rank history: #10 in FY2022, #8 in FY2023, #10 in FY2024 and #9 in FY2025; up 7 since FY2020.
10	Servicios Auxiliares DE Puertos SA Top agencies Navy (Department of the Navy)	$1,727,504	2.7%	Rank history: #13 in FY2022, #14 in FY2023, #12 in FY2024 and #14 in FY2025; up 5 since FY2020.
11	Virginia Pilot Association Top agencies Navy (Department of the Navy)	$1,694,366	2.6%	Rank history: #12 in FY2022, #10 in FY2023, #13 in FY2024 and #15 in FY2025; up 2 since FY2020.
12	Thames Towboat Co Inc. Top agencies Navy (Department of the Navy)	$1,453,304	2.3%	Rank history: #8 in FY2022, #7 in FY2023, #7 in FY2024 and #6 in FY2025; down 4 since FY2020.
13	JX Holdings Inc. Through Okinawa Marine Service Co.,Ltd. Top agencies Navy (Department of the Navy)	$1,018,460	1.6%	Rank history: #17 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
14	Quality First Construction LLC Top agencies Army (Department of the Army)	$1,009,350	1.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
15	Dunlap Towing Company Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$988,800	1.5%	Rank history: #16 in FY2022, #11 in FY2023, #14 in FY2024 and #17 in FY2025; up 5 since FY2020.
16	MC Allister Towing & Transportation Company Inc 3 awardees, including Mcallister Towing and Transportation Company, Inc., Mcallister Towing of Charleston, Inc. and Mcallister Towing of Florida Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$979,934	1.5%	Rank history: #11 in FY2022, #12 in FY2023, #6 in FY2024 and #18 in FY2025; down 6 since FY2020.
17	Harley Marine Financing LLC Top agencies Navy (Department of the Navy)	$946,296	1.5%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
18	Mclean Contracting Company Top agencies DHS (Department of Homeland Security)	$927,024	1.4%	Rank history: #18 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2020.
19	Pacific Maritime Group Inc. Top agencies Navy (Department of the Navy)	$500,200	0.8%	Rank history: #26 in FY2022, #17 in FY2023, #17 in FY2024 and #27 in FY2025; unchanged since FY2020.
20	Kyowa Marine Service Co. Ltd. Top agencies Navy (Department of the Navy)	$428,340	0.7%	Rank history: #22 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
21	Brusco Tug & Barge, Inc. Top agencies Navy (Department of the Navy)	$370,658	0.6%	Rank history: #21 in FY2022, #19 in FY2023, #15 in FY2024 and #13 in FY2025; down 10 since FY2020.
22	Crowley Government Services Inc. Through Crowley Marine Services, Inc. Top agencies Navy (Department of the Navy)	$351,529	0.5%	Rank history: #25 in FY2022, #20 in FY2023, #21 in FY2024 and not on the FY2025 list; down 8 since FY2020.
23	Cape Dredging Inc. Top agencies DOI (Department of the Interior)	$295,000	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Asahi Tanker Co.,Ltd. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$265,849	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	Patriot Construction and Industrial LLC Top agencies Army (Department of the Army)	$265,000	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
26	Jacobsen Pilot Service, Inc. Top agencies Navy (Department of the Navy)	$230,468	0.4%	Rank history: #27 in FY2022, #24 in FY2023, #22 in FY2024 and #23 in FY2025; unchanged since FY2020.
27	Amak Towing Co Inc. Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$208,517	0.3%	Rank history: #23 in FY2022, #25 in FY2023, #30 in FY2024 and #21 in FY2025; down 6 since FY2020.
28	Tokyo Kisen Co., Ltd. Top agencies Navy (Department of the Navy)	$162,216	0.3%	Rank history: #24 in FY2022, #28 in FY2023, #24 in FY2024 and #26 in FY2025; down 4 since FY2020.
29	Portside Marine & Towing, Inc. Top agencies DHS (Department of Homeland Security)	$160,000	0.2%	Rank history: #43 in FY2022, #35 in FY2023, #43 in FY2024 and #56 in FY2025; up 26 since FY2020.
30	North Point Marine & Industrial Inc. Top agencies DHS (Department of Homeland Security)	$140,000	0.2%	Rank history: #32 in FY2022, #56 in FY2023, not on the FY2024 list and #30 in FY2025; up 43 since FY2020.
31	Sasebo Harbor Pilot Association Top agencies Navy (Department of the Navy)	$117,182	0.2%	Rank history: #29 in FY2022, #30 in FY2023, #27 in FY2024 and #28 in FY2025; down 6 since FY2020.
32	Okinawa Marine Service Co.,Ltd. Top agencies Navy (Department of the Navy)	$103,166	0.2%	Rank history: #28 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
33	Stevens Towing Co Inc. Top agencies Navy (Department of the Navy)	$100,000	0.2%	Rank history: not on the FY2022 list, #47 in FY2023, #38 in FY2024 and #48 in FY2025; new, not ranked in FY2020.
34	Global Diving & Salvage, Inc. Top agencies Army (Department of the Army)	$87,000	0.1%	Rank history: not on the FY2022–FY2023 lists, #46 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
35	ST Johns Bar Pilots Inc. Top agencies Navy (Department of the Navy)	$69,916	0.1%	Rank history: #36 in FY2022, not on the FY2023–FY2024 lists and #41 in FY2025; down 3 since FY2020.
36	John, Darrel T. Top agencies DHS (Department of Homeland Security)	$65,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	Stevenson Formel Freight Services LLC Top agencies DHS (Department of Homeland Security)	$45,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.
38	Damon R Williams Top agencies Army (Department of the Army)	$41,950	0.1%	Rank history: #34 in FY2022, #33 in FY2023, #32 in FY2024 and #33 in FY2025; down 10 since FY2020.
39	Touchard JR Bruno Louis Top agencies Army (Department of the Army)	$41,950	0.1%	Rank history: #35 in FY2022, #31 in FY2023, #31 in FY2024 and #37 in FY2025; down 10 since FY2020.
40	Paradigm Marine, LLC Top agencies DHS (Department of Homeland Security)	$26,876	<0.1%	Rank history: not on the FY2022 list, #32 in FY2023, not on the FY2024 list and #36 in FY2025; down 2 since FY2020.
41	Centerline Logistics Corp Top agencies DHS (Department of Homeland Security)	$24,000	<0.1%	Rank history: not on the FY2022–FY2023 lists, #45 in FY2024 and #55 in FY2025; new, not ranked in FY2020.
42	Chesapeake Bay Diving, Inc. Top agencies DOI (Department of the Interior)	$22,292	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Western Towboat Company Top agencies DHS (Department of Homeland Security)	$18,590	<0.1%	Rank history: #50 in FY2022, #42 in FY2023, #33 in FY2024 and #45 in FY2025; down 2 since FY2020.
44	Katchatag Sheldon I Top agencies DHS (Department of Homeland Security)	$17,500	<0.1%	Rank history: not on the FY2022–FY2023 lists, #36 in FY2024 and not on the FY2025 list; up 4 since FY2020.
45	Seacor Holdings Inc. Through Seabulk Towing, Inc. Top agencies DHS (Department of Homeland Security)	$16,186	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
46	Cascade Towing, Inc. Top agencies DOI (Department of the Interior)	$16,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Salmons Dredging Corporation Top agencies Army (Department of the Army)	$14,940	<0.1%	Rank history: #48 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; up 21 since FY2020.
48	Trustees of the Colorado School of Mines Top agencies DOS (Department of State)	$14,438	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Global Support Inc. Top agencies Navy (Department of the Navy)	$13,344	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	Marine Towing of Tampa LLC Top agencies DHS (Department of Homeland Security)	$12,415	<0.1%	Rank history: not on the FY2022 list, #51 in FY2023 and not on the FY2024–FY2025 lists; up 20 since FY2020.
51	The Shab Shipping Consult Top agencies USAID (US Agency for International Development)	$12,364	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Reinauer CO'S LLC Through Boston Towing & Transportation Company, L.p., LT Top agencies Navy (Department of the Navy)	$11,267	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	Tokyowan Mizusakiku Mizusakininkai Top agencies Navy (Department of the Navy)	$8,744	<0.1%	Rank history: #44 in FY2022, #45 in FY2023, #58 in FY2024 and not on the FY2025 list; up 10 since FY2020.
54	Siegfried Consultants LLC Top agencies Commerce (Department of Commerce)	$8,180	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Sankyu Inc. Top agencies Navy (Department of the Navy)	$8,105	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	The Great Lakes Towing Company LLC Top agencies DHS (Department of Homeland Security)	$7,544	<0.1%	Rank history: not on the FY2022–FY2023 lists, #44 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
57	Deforge Maritime Towing LLC Top agencies Commerce (Department of Commerce)	$6,252	<0.1%	Rank history: #45 in FY2022, not on the FY2023 list, #41 in FY2024 and #54 in FY2025; new, not ranked in FY2020.
58	Signet Maritime Corporation Top agencies Commerce (Department of Commerce)	$5,281	<0.1%	Rank history: #47 in FY2022, #50 in FY2023, #49 in FY2024 and #52 in FY2025; new, not ranked in FY2020.
59	Biscayne Towing & Salvage, Inc. Top agencies DOI (Department of the Interior)	$5,245	<0.1%	Rank history: not on the FY2022 list, #27 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2020.
60	Underwater Mechanix Services LLC Top agencies Army (Department of the Army)	$5,160	<0.1%	Rank history: not on the FY2022–FY2024 lists and #53 in FY2025; new, not ranked in FY2020.
61	Big Bay Marine Services, Inc. Top agencies DHS (Department of Homeland Security)	$3,650	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
62	Tampa Bay Pilots Top agencies DHS (Department of Homeland Security)	$3,414	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 10 since FY2020.
63	Birchwood, Ratcliff & Associates LLC Top agencies DHS (Department of Homeland Security)	$3,296	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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 $64.3 million obligated before deobligations, so they never pass 100%.
• Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
• Fiscal year 2021 ran Oct 1, 2020 – Sep 30, 2021. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
• Rank changes compare with FY2020. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
• Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2020 takes the color of the rank change beside it.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

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