Company lists · Data refreshed November 2026

Top 25 Environmental dredging contractors based in the United States

RevenueBase identified 225 company matches for environmental dredging contractors associated with the United States as of November 2026 and tracks 5,538 professional contacts across them, including 1,621 with verified work emails. Houston is the largest hub.

This list covers company matches for environmental dredging 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 November 6, 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 Nov 6, 2026 How this list was built
225Companies
5,538Contacts tracked
1,621Verified emails
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The 25 largest environmental dredging contractors based in the United States

Ranked by team size
Top 25 of 225 company matches for environmental dredging contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,000990 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCranford, NJ, United StatesHQ recorded Nov 6, 20261,001-5,000898 contacts →

Exact match

“Founded in 1919, Weeks Marine, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSeattle, CA, United StatesHQ recorded Nov 6, 2026501-1,000626 contacts →

Exact match

“Manson is one of the nation’s leading heavy civil marine construction and dredging companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchGalveston, TX, United StatesHQ recorded Nov 6, 2026n/a183 contacts →

Exact match

“The Callan Marine team offers comprehensive dredging solutions for any project.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Rafael, CA, United StatesHQ recorded Nov 6, 2026201-500182 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchQuincy, MA, United StatesHQ recorded Nov 6, 2026201-500130 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSan Antonio, TX, United StatesHQ recorded Nov 6, 2026201-500116 contacts →

Exact match

“Alamo 1 is a full service environmental contractor that specializes in large-scale industrial construction, demolition, remediation, abatement, energy, emergency response…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBoston, MA, United StatesHQ recorded Nov 6, 202651-200113 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchReserve, MS, United StatesHQ recorded Nov 6, 202651-200110 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWestlake, TX, United StatesHQ recorded Nov 6, 2026201-50089 contacts →

Exact match

“Family owned and operated, Mike Hooks, LLC was founded in 1945 and incorporated in 1957.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchTampa, FL, United StatesHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 202651-20078 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 · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 2026201-50059 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHonolulu, CA, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBrooklyn, United StatesHQ recorded Nov 6, 2026201-50045 contacts →

Exact match

“Accuworx is a leading North American provider of end to end environmental and industrial solutions for both the private and public sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSayreville, NJ, United StatesHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“AWT is a full-service environmental contractor serving the Northeastern and Middle Atlantic United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchRuskin, FL, United StatesHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“Sea & Shoreline is a full-service aquatic restoration firm with experience rehabilitating both freshwater and marine ecosystems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBeltsville, PA, United StatesHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHilliard, OH, United StatesHQ recorded Nov 6, 2026201-50034 contacts →

Exact match

“Metropolitan Environmental Services, headquartered in Hilliard, near Columbus, Ohio, offers a full line of dredging, dewatering, excavation, industrial cleaning, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchTopeka, KS, United StatesHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTacoma, WA, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“American Construction Company is a General Marine Contractor specializing in marine construction and dredging.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBossier City, LA, United StatesHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“Pickett Industries has been providing Environmental Management Services and Heavy Civil Construction for various Corporations and Government Entities in the Southeast for over…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCharleston, OR, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Marinex Construction, Inc | Specializing in marine construction with an emphasis on channel and fill dredging and river and harbor improvements.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchChesapeake, VA, United StatesHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Established in 1928, Cottrell Contracting, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 225 environmental dredging contractors based in the United States

See the full list, filter by size, metro and specialty, and access 1,621 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental dredging contractors based in the United States at a glance

As of Nov 6, 2026
29.3%Verified-email coverage
24.6Average contacts per company
11-50Median size (employees)
4.0%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
76
11-50
83
51-200
44
201-500
15
501-1,000
2
1,001-5,000
3

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 225 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 “environmental dredging 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 1,621 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 November 6, 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 “environmental dredging contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental dredging contractors are there based in the United States?

RevenueBase identified 225 company matches for environmental dredging contractors associated with the United States as of November 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 environmental dredging contractors?

Houston leads with 9 company records, followed by Tampa (6) and Harvey (3).

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 1,621 professional contacts with verified work emails tracked across these 225 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 November 6, 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.