Company lists · Data refreshed September 2026

Top 25 Seabed mining contractors based in the United States

Name: Seabed mining contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 214 companies tracked

RevenueBase identified 214 company matches for seabed mining contractors associated with the United States as of September 2026 and tracks 8,342 professional contacts across them, including 1,877 with verified work emails. Houston is the largest hub.

This list covers company matches for seabed mining contractors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

214Companies

8,342Contacts tracked

1,877Verified emails

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The 25 largest seabed mining contractors based in the United States

Ranked by team size

Top 25 of 214 company matches for seabed mining contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Great Lakes Dredge & Dock Company, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	916 contacts →
	Exact match “Great Lakes Dredge & Dock (GLDD) is the largest provider of dredging services in the United States and the only U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Weeks Marine, INC	Exact match	Cranford, NJ, United StatesHQ recorded Sep 17, 2026	1,001-5,000	847 contacts →
	Exact match “Founded in 1919, Weeks Marine, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Manson Construction CO	Exact match	Seattle, WA, United StatesHQ recorded Sep 17, 2026	501-1,000	592 contacts →
	Exact match “Manson is one of the nation’s leading heavy civil marine construction and dredging companies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Saexploration	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	201-500	521 contacts →
	Exact match “SAExploration offers a full range of geophysical ground acquisition services from design, prospecting, drilling, recording and analysis of field quality, as well as mobilization…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Ballard Marine Construction	Exact match	Washougal, WA, United StatesHQ recorded Sep 17, 2026	51-200	236 contacts →
	Exact match “Ballard Marine Construction (Ballard) is a specialty marine and underwater contractor.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Callan Marine LTD	Exact match	Galveston, TX, United StatesHQ recorded Sep 17, 2026	n/a	178 contacts →
	Exact match “The Callan Marine team offers comprehensive dredging solutions for any project.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Subsea Global Solutions	Exact match	Miami, FL, United StatesHQ recorded Sep 17, 2026	201-500	176 contacts →
	Exact match “Welcome to Subsea Global Solutions where EVERY DAY our goal is to deliver unrivaled service.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Phoenix International Holdings, INC	Exact match	Largo, United StatesHQ recorded Sep 17, 2026	201-500	170 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	The Dutra Group	Exact match	San Rafael, CA, United StatesHQ recorded Sep 17, 2026	201-500	158 contacts →
	Exact match “The Dutra Group is a leading heavy civil marine contractor focused on strengthening our nation’s infrastructure through sustainable dredging and marine construction.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Cashman Dredging & Marine Contracting Company, LLC	Exact match	Quincy, MA, United StatesHQ recorded Sep 17, 2026	201-500	131 contacts →
	Exact match “Cashman Dredging & Marine Contracting, LLC has undertaken some of the largest dredging projects in U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Bisso Marine	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	201-500	118 contacts →
	Exact match “BISSO MARINE is a subsea & offshore midstream infrastructure contractor that has been providing unsurpassed service and quality to the marine and energy industries since 1890.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	SUS	Exact match	Baltimore, MD, United StatesHQ recorded Sep 17, 2026	11-50	118 contacts →
	Exact match “SUS specializes in underwater marine construction including bridges, dams, pipelines, intakes, outfalls, inspection services, piers and wharfs and other public safety and local…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Benthic - Utec	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	51-200	115 contacts →
	Exact match “Benthic is a global leader in offshore marine geotechnical investigation, survey, analysis and design.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Tdi-Brooks	Exact match	College Station, TX, United StatesHQ recorded Sep 17, 2026	51-200	107 contacts →
	Exact match “TDI-Brooks is a 27-year-old research and service company specializing in geotechnical and offshore survey projects; multi-disciplinary oceanographic and environmental projects…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	DSC Dredge, LLC	Exact match	Reserve, LA, United StatesHQ recorded Sep 17, 2026	51-200	107 contacts →
	Exact match “DSC Dredge LLC, a world’s leader in portable dredges, manufactures cutter suction dredges of all sizes and applications.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Mike Hooks, LLC	Exact match	Westlake, LA, United StatesHQ recorded Sep 17, 2026	201-500	85 contacts →
	Exact match “Family owned and operated, Mike Hooks, LLC was founded in 1945 and incorporated in 1957.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Bordelon Marine	Exact match	Houma, LA, United StatesHQ recorded Sep 17, 2026	51-200	79 contacts →
	Exact match “Bordelon Marine is a leading provider of offshore support and subsea services operating in the U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	MES Mining	Exact match	Sandy, UT, United StatesHQ recorded Sep 17, 2026	11-50	77 contacts →
	Exact match “Mining & Environmental Services LLC provides specialized technical expertise, at a high level of excellence, to support our Clients throughout the full process cycle of…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Greensea IQ	Exact match	Richmond, VT, United StatesHQ recorded Sep 17, 2026	51-200	75 contacts →
	Exact match “At Greensea IQ, we are redefining the future of subsea robotics through cutting-edge solutions tailored to the Defense and Maritime industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Hydra Subsea & Offshore Construction	Exact match	Sugar Land, TX, United StatesHQ recorded Sep 17, 2026	51-200	73 contacts →
	Exact match “Subsea Construction” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Ellicott Dredges	Exact match	Baltimore, MD, United StatesHQ recorded Sep 17, 2026	51-200	70 contacts →
	Exact match “Ellicott Dredges engineers and manufactures innovative dredges and dredging equipment, which are being used for infrastructure projects worldwide.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	American Marine Corporation	Exact match	Honolulu, HI, United StatesHQ recorded Sep 17, 2026	51-200	55 contacts →
	Exact match “American Marine Corporation is a maritime company based out of Honolulu, HI, United States.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Bedrock Ocean Exploration	Exact match	Richmond, CA, United StatesHQ recorded Sep 17, 2026	11-50	52 contacts →
	Exact match “We are a vertically-integrated ocean exploration company developing proprietary robotics and software to quickly and cheaply explore the entirety of the Earth’s oceans on a scale…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Pacific Maritime Group, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	201-500	52 contacts →
	Exact match “Pacific Maritime Group, Inc.(PMG) is a full-service marine contractor with the largest barge fleet on the U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Midco Diving & Marine Services, INC	Exact match	Rapid City, SD, United StatesHQ recorded Sep 17, 2026	11-50	48 contacts →
	Exact match “Midco Diving is a contracting & marine services company performing professional dive services worldwide.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “seabed mining contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 214 seabed mining contractors based in the United States

See the full list, filter by size, metro and specialty, and access 1,877 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Seabed mining contractors based in the United States at a glance

As of Sep 17, 2026

22.5%Verified-email coverage

39.0Average contacts per company

11-50Median size (employees)

7.0%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 214 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “seabed mining contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 1,877 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “seabed mining contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many seabed mining contractors are there based in the United States?

RevenueBase identified 214 company matches for seabed mining contractors associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Great Lakes Dredge & Dock Company, LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most seabed mining contractors?

Houston leads with 15 company records, followed by Houma (6) and Seattle (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,877 professional contacts with verified work emails tracked across these 214 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.