Company lists · Data refreshed September 2026
Top 25 Dredging companies based in the United States
RevenueBase identified 237 dredging companies headquartered in the United States as of September 2026 and tracks 5,533 professional contacts across them, including 1,532 with verified work emails. Houston is the largest hub.
This list covers dredging companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest dredging companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 916 contacts → | ||||
Strong evidence “Great Lakes Dredge & Dock (GLDD) is the largest provider of dredging services in the United States and the only U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 847 contacts → | ||||
Indirect evidence “Founded in 1919, Weeks Marine, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 592 contacts → | ||||
Strong evidence “Manson is one of the nation’s leading heavy civil marine construction and dredging companies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 178 contacts → | ||||
Strong evidence “The Callan Marine team offers comprehensive dredging solutions for any project.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 158 contacts → | ||||
Strong evidence “The Dutra Group is a leading heavy civil marine contractor focused on strengthening our nation’s infrastructure through sustainable dredging and marine construction.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 138 contacts → | ||||
Indirect evidence “Cashman is a privately held multi-disciplinary construction and development company, founded and owned by Jay M.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 131 contacts → | ||||
Strong evidence “Cashman Dredging & Marine Contracting, LLC has undertaken some of the largest dredging projects in U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 126 contacts → | ||||
Indirect evidence “Russell Marine LLC is a heavy civil marine construction company located in Channelview, Texas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 107 contacts → | ||||
Indirect evidence “DSC Dredge LLC, a world’s leader in portable dredges, manufactures cutter suction dredges of all sizes and applications.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 105 contacts → | ||||
Indirect evidence “Founded in 1940, Parker Towing Company is one of the largest barge lines in the southeastern United States, operating a fleet of towboats and over 350 open and covered hopper…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 104 contacts → | ||||
Indirect evidence “The Charter Companies are a premier New England environmental firm delivering vision, clarity, certainty, and closure for complex, environmentally impaired sites, both on land and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 85 contacts → | ||||
Indirect evidence “Family owned and operated, Mike Hooks, LLC was founded in 1945 and incorporated in 1957.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 75 contacts → | ||||
Indirect evidence “Pine Bluff Sand & Gravel Company is a diversified aggregate and marine construction company with operations in rip rap, crushed stone, sand mining, hot-mix asphalt, ready-mix…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 74 contacts → | ||||
Indirect evidence “Gahagan & Bryant Associates, Inc.(GBA) is a unique engineering firm that specializes in providing consulting and engineering services for a variety of projects, including port…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 70 contacts → | ||||
Strong evidence “Ellicott Dredges engineers and manufactures innovative dredges and dredging equipment, which are being used for infrastructure projects worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 59 contacts → | ||||
Indirect evidence “EDDY Pump Corporation is a dredge equipment and pump manufacturer, along with being an engineering company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 52 contacts → | ||||
Indirect evidence “Pacific Maritime Group, Inc.(PMG) is a full-service marine contractor with the largest barge fleet on the U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 44 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 42 contacts → | ||||
Indirect evidence “SPI/Mobile Pulley Works, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 37 contacts → | ||||
Strong evidence “Mobile Dredging & Video Pipe offers a full line of hydraulic dredging and dewatering, sewer system repair and maintenance, water line inspection and leak detection and industrial…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 33 contacts → | ||||
Strong evidence “Dredgit Corporation operates three divisions in public and private sector contracting: Dredgit Environmental, Dredgit Marine & Dredgit Civil We take immense pride in our work and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 32 contacts → | ||||
Strong evidence “American Construction Company is a General Marine Contractor specializing in marine construction and dredging.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 30 contacts → | ||||
Strong evidence “Metropolitan Environmental Services, headquartered in Hilliard, near Columbus, Ohio, offers a full line of dredging, dewatering, excavation, industrial cleaning, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 28 contacts → | ||||
Indirect evidence “Cashman Equipment Corp.(CEC), headquartered in Boston, Massachusetts, USA, was founded in 1995 as a barge rental and marine contracting company with a fleet of 10 barges, 9 of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 28 contacts → | ||||
Indirect evidence “Customized New Dredge Designs from 8″ discharge up to 20” *Comprehensive automation and data-logging options *Heavy duty Booster Pump Stations *Dewatering Bucket Wheels, Industry…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: dredging companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names dredging companies.
- Partial evidence
- Its own public description names part of dredging companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name dredging companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 237 dredging companies based in the United States
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Dredging companies based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 237 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among dredging companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “dredging companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names dredging companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among dredging companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 1,532 across the full list. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names dredging companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many dredging companies are there based in the United States?
RevenueBase identified 237 dredging companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Great Lakes Dredge & Dock Company, LLC, headquartered in Houston, tops this list with the largest team on record.
Which city has the most dredging companies?
Houston leads with 12 headquartered companies, followed by Belle Chasse (4) and Seattle (4).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,532 verified decision-maker contacts tracked across these 237 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.