Top 42 Contractors in PSC Z1KF: Maintenance of Dredging Facilities, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Norfolk Dredging Company Top agencies Army (Department of the Army) Navy (Department of the Navy)	$74,534,225	22.6%	Rank history: #2 in FY2022, #2 in FY2023, #10 in FY2024 and #4 in FY2025; new, not ranked in FY2020.
2	Great Lakes Dredge & Dock Corporation Top agencies Army (Department of the Army)	$32,221,382	9.8%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 1 since FY2020.
3	The Dutra Group Top agencies Army (Department of the Army)	$24,306,345	7.4%	Rank history: #29 in FY2022, #9 in FY2023, #14 in FY2024 and #12 in FY2025; up 4 since FY2020.
4	Marinex Construction Inc. Top agencies Army (Department of the Army)	$23,952,197	7.3%	Rank history: #3 in FY2022, #3 in FY2023, #33 in FY2024 and #11 in FY2025; down 2 since FY2020.
5	Weeks Marine Inc. 2 awardees, including Healy Tibbitts Builders, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$21,928,140	6.6%	Rank history: #15 in FY2022, #28 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
6	Encore Dredging Founding Partners LLC Through Inland Dredging Company, L.L.C. Top agencies Army (Department of the Army)	$19,053,720	5.8%	Rank history: #19 in FY2022, #8 in FY2023, #20 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
7	Cottrell Contracting Corporation Top agencies Army (Department of the Army)	$16,841,420	5.1%	Rank history: #11 in FY2022, #11 in FY2023, #3 in FY2024 and #7 in FY2025; up 13 since FY2020.
8	Ohishi Construction Co. Ltd. Top agencies Navy (Department of the Navy)	$12,179,881	3.7%	Rank history: #18 in FY2022, not on the FY2023 list, #32 in FY2024 and #10 in FY2025; new, not ranked in FY2020.
9	Cavache, Inc. Top agencies Army (Department of the Army)	$11,272,971	3.4%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
10	Ahtna Marine & Construction Company, LLC Top agencies Army (Department of the Army)	$10,597,145	3.2%	Rank history: #13 in FY2022, #31 in FY2023, #18 in FY2024 and #18 in FY2025; new, not ranked in FY2020.
11	Morrish-Wallace Construction, Inc. Top agencies Army (Department of the Army)	$9,834,997	3.0%	Rank history: not on the FY2022 list, #17 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
12	Orion Marine Group Inc. Through Orion Marine Construction, Inc. Top agencies Army (Department of the Army)	$9,519,750	2.9%	Rank history: #6 in FY2022, #13 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
13	Matthews Brothers Dredging, LLC Top agencies Army (Department of the Army)	$6,915,000	2.1%	Rank history: #9 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
14	Great Lakes Dock and Materials, L.L.C. Top agencies Army (Department of the Army)	$5,930,525	1.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
15	Manson Construction Co. 2 awardees Top agencies Army (Department of the Army)	$4,447,586	1.3%	Rank history: #5 in FY2022, #10 in FY2023, #5 in FY2024 and #9 in FY2025; down 10 since FY2020.
16	R B Pamplin Corp Through Ross Island Sand & Gravel Co. Top agencies Army (Department of the Army)	$4,285,612	1.3%	Rank history: #20 in FY2022, #20 in FY2023, #38 in FY2024 and not on the FY2025 list; down 6 since FY2020.
17	Waterfront Property Services, LLC Top agencies Army (Department of the Army)	$2,944,620	0.9%	Rank history: not on the FY2022 list, #14 in FY2023, #4 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
18	Kokosing Construction Company Inc. Through Construction Co Corman Kokosing Top agencies Army (Department of the Army)	$2,875,000	0.9%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
19	R.e. Staite Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$2,791,346	0.8%	Rank history: not on the FY2022 list, #39 in FY2023 and not on the FY2024–FY2025 lists; down 15 since FY2020.
20	Southern Dredging Co Inc. Top agencies Army (Department of the Army)	$1,936,510	0.6%	Rank history: #8 in FY2022, #18 in FY2023, #13 in FY2024 and #21 in FY2025; down 5 since FY2020.
21	Goodloe Marine Inc. Top agencies Army (Department of the Army)	$1,886,329	0.6%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
22	Reliable Builders Inc. Top agencies Navy (Department of the Navy)	$1,811,700	0.5%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
23	Bidco Marine Group Inc. Top agencies Army (Department of the Army)	$1,603,550	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Pacific Dredge and Construction, LLC Top agencies Army (Department of the Army)	$1,501,385	0.5%	Rank history: #12 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
25	Yannuzzi Group, Inc. Top agencies Army (Department of the Army)	$1,475,357	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
26	RLB Contracting, Inc. Top agencies Army (Department of the Army)	$1,164,580	0.4%	Rank history: #37 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
27	Cashman Dredging and Marine Contracting Co. LLC Top agencies Army (Department of the Army)	$1,017,672	0.3%	Rank history: #4 in FY2022, #6 in FY2023, #6 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
28	Alaska Marine Excavation LLC Top agencies Army (Department of the Army)	$988,607	0.3%	Rank history: #25 in FY2022, not on the FY2023 list, #50 in FY2024 and #20 in FY2025; down 10 since FY2020.
29	Ashridge Inc. Top agencies Army (Department of the Army)	$708,800	0.2%	Rank history: #32 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
30	Lind Marine LLC Top agencies DHS (Department of Homeland Security)	$684,415	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
31	Coastal Dredging Co, Inc. Top agencies Army (Department of the Army)	$412,762	0.1%	Rank history: not on the FY2022–FY2024 lists and #39 in FY2025; down 10 since FY2020.
32	Western Marine Construction, Inc. Top agencies Army (Department of the Army)	$301,064	0.1%	Rank history: not on the FY2022–FY2023 lists, #8 in FY2024 and #14 in FY2025; new, not ranked in FY2020.
33	Jsco Inc. Top agencies Army (Department of the Army)	$280,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	Curtin Maritime Corp Top agencies Army (Department of the Army)	$233,937	0.1%	Rank history: #7 in FY2022, #5 in FY2023, #12 in FY2024 and #3 in FY2025; down 22 since FY2020.
35	Barnegat Bay Dredging Co Inc. Top agencies Army (Department of the Army)	$222,843	0.1%	Rank history: #23 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
36	Camenzind Dredging, Inc. Top agencies Army (Department of the Army)	$218,301	0.1%	Rank history: not on the FY2022–FY2025 lists; down 13 since FY2020.
37	G.m. Hill Engineering, Inc. Top agencies Army (Department of the Army)	$177,861	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Beach Transport Inc. Top agencies Army (Department of the Army)	$163,462	<0.1%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
39	SP Services LLC Top agencies Army (Department of the Army)	$88,264	<0.1%	Rank history: #36 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
40	Onaka Gumi Co.,Ltd. Top agencies Army (Department of the Army)	$53,064	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
41	Seaberg Contracting Inc. Top agencies USDA (Department of Agriculture)	$29,570	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
42	MCR Engineering Company, Inc. Top agencies Army (Department of the Army)	$16,681	<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 $330 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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