Top 41 Contractors in PSC Z1KF: Maintenance of Dredging Facilities, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Great Lakes Dredge & Dock Corporation Top agencies Army (Department of the Army)	$154,316,979	19.8%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	Norfolk Dredging Company Top agencies Army (Department of the Army) Navy (Department of the Navy)	$118,162,596	15.1%	Rank history: #1 in FY2021, #2 in FY2022, #10 in FY2024 and #4 in FY2025; unchanged since FY2022.
3	Marinex Construction Inc. Top agencies Army (Department of the Army)	$64,855,379	8.3%	Rank history: #4 in FY2021, #3 in FY2022, #33 in FY2024 and #11 in FY2025; unchanged since FY2022.
4	Callan Marine Ltd Top agencies Army (Department of the Army)	$55,438,576	7.1%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2024 and not on the FY2025 list; new.
5	Curtin Maritime Corp Top agencies Army (Department of the Army)	$53,648,314	6.9%	Rank history: #34 in FY2021, #7 in FY2022, #12 in FY2024 and #3 in FY2025; up 2 since FY2022.
6	Cashman Dredging and Marine Contracting Co. LLC Top agencies Army (Department of the Army)	$45,230,610	5.8%	Rank history: #27 in FY2021, #4 in FY2022, #6 in FY2024 and not on the FY2025 list; down 2 since FY2022.
7	Peter Kiewit Sons', Inc. Through Weeks Marine, Inc. Top agencies Army (Department of the Army)	$32,857,546	4.2%	Rank history: not on the FY2021–FY2022 lists, #2 in FY2024 and #2 in FY2025; new.
8	Encore Dredging Founding Partners LLC Through Inland Dredging Company, L.L.C. Top agencies Army (Department of the Army)	$31,242,681	4.0%	Rank history: #6 in FY2021, #19 in FY2022, #20 in FY2024 and not on the FY2025 list; up 11 since FY2022.
9	The Dutra Group Top agencies Army (Department of the Army)	$26,683,759	3.4%	Rank history: #3 in FY2021, #29 in FY2022, #14 in FY2024 and #12 in FY2025; up 20 since FY2022.
10	Manson Construction Co. Top agencies Army (Department of the Army)	$23,909,602	3.1%	Rank history: #15 in FY2021, #5 in FY2022, #5 in FY2024 and #9 in FY2025; down 5 since FY2022.
11	Cottrell Contracting Corporation Top agencies Army (Department of the Army)	$17,808,644	2.3%	Rank history: #7 in FY2021, #11 in FY2022, #3 in FY2024 and #7 in FY2025; unchanged since FY2022.
12	Kokosing Inc. Through Kokosing Industrial Inc. Top agencies Army (Department of the Army)	$12,811,304	1.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
13	Orion Marine Group Inc. Through Orion Marine Construction, Inc. Top agencies Army (Department of the Army)	$12,513,584	1.6%	Rank history: #12 in FY2021, #6 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
14	Waterfront Property Services, LLC Top agencies Army (Department of the Army)	$9,231,630	1.2%	Rank history: #17 in FY2021, not on the FY2022 list, #4 in FY2024 and not on the FY2025 list; returned.
15	L-J Inc. Top agencies Army (Department of the Army)	$8,551,380	1.1%	Rank history: not on the FY2021 list, #22 in FY2022, #42 in FY2024 and not on the FY2025 list; up 7 since FY2022.
16	Evco Development LLC Top agencies Army (Department of the Army)	$6,907,945	0.9%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2024 and #15 in FY2025; new.
17	Morrish-Wallace Construction, Inc. Top agencies Army (Department of the Army)	$5,882,500	0.8%	Rank history: #11 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
18	Southern Dredging Co Inc. Top agencies Army (Department of the Army)	$5,735,172	0.7%	Rank history: #20 in FY2021, #8 in FY2022, #13 in FY2024 and #21 in FY2025; down 10 since FY2022.
19	Agate Construction Company, Inc. Top agencies Army (Department of the Army)	$5,382,300	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
20	R B Pamplin Corp Through Ross Island Sand & Gravel Co. Top agencies Army (Department of the Army)	$4,388,041	0.6%	Rank history: #16 in FY2021, #20 in FY2022, #38 in FY2024 and not on the FY2025 list; unchanged since FY2022.
21	Pacific Dredge and Construction, LLC Top agencies Army (Department of the Army)	$4,323,467	0.6%	Rank history: #24 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
22	N&S Property Services LLC Top agencies Army (Department of the Army)	$3,824,884	0.5%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and not on the FY2025 list; new.
23	Camenzind Dutra JV LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$3,598,888	0.5%	Rank history: not on the FY2021 list, #10 in FY2022, #37 in FY2024 and not on the FY2025 list; down 13 since FY2022.
24	Marco Federal Services LLC Top agencies Army (Department of the Army)	$2,992,177	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
25	Dibble Creek Rock Limited Through Alaska Marine Excavation LLC Top agencies Army (Department of the Army)	$2,337,652	0.3%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and not on the FY2025 list; new.
26	Spectraserv Inc. Top agencies Army (Department of the Army)	$2,305,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
27	Scrimgeours Farm All, LLC Top agencies Army (Department of the Army)	$1,880,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2024 and not on the FY2025 list; new.
28	Weeks Marine Inc. Through Healy Tibbitts Builders, Inc. Top agencies Army (Department of the Army)	$1,790,970	0.2%	Rank history: #5 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
29	Better By Design LLC Top agencies Army (Department of the Army)	$1,674,105	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #32 in FY2025; new.
30	Dredgit Corporation Top agencies Army (Department of the Army)	$1,599,350	0.2%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and not on the FY2025 list; new.
31	Ahtna Marine & Construction Company, LLC Top agencies Army (Department of the Army)	$1,443,389	0.2%	Rank history: #10 in FY2021, #13 in FY2022, #18 in FY2024 and #18 in FY2025; down 18 since FY2022.
32	US Aqua Services LLC Top agencies Army (Department of the Army)	$1,354,000	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #23 in FY2025; new.
33	Rod Transport Inc. Top agencies Army (Department of the Army)	$1,283,900	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	JX Holdings Inc. Through Nippo Corporation Top agencies USAF (Department of the Air Force)	$715,578	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
35	Southwind Holdings Corp. Through Southwind Construction Corp. Top agencies Army (Department of the Army)	$569,851	0.1%	Rank history: not on the FY2021 list, #16 in FY2022, #21 in FY2024 and not on the FY2025 list; down 19 since FY2022.
36	Barnegat Bay Dredging Co Inc. Top agencies Army (Department of the Army)	$468,006	0.1%	Rank history: #35 in FY2021, #23 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
37	Mid-America Dredging, Inc. Top agencies Army (Department of the Army)	$302,550	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
38	Port Amherst Ltd. Through Amherst Madison, Inc. Top agencies Army (Department of the Army)	$132,076	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
39	R.e. Staite Engineering, Inc. Top agencies Navy (Department of the Navy)	$112,311	<0.1%	Rank history: #19 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
40	SP Services LLC Top agencies Army (Department of the Army)	$91,829	<0.1%	Rank history: #39 in FY2021, #36 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
41	Seaberg Enterprise, Inc. Top agencies USDA (Department of Agriculture)	$32,880	<0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #51 in FY2024 and not on the FY2025 list; down 3 since FY2022.

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 $781 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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