Company lists · Data refreshed September 2026

Top 25 Port construction companies based in the United States

RevenueBase identified 335 port construction companies headquartered in the United States as of September 2026 and tracks 9,474 professional contacts across them, including 3,614 with verified work emails. Houston is the largest hub.

This list covers port construction 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 17, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review
335Companies
9,474Contacts tracked
3,614Verified emails
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The 25 largest port construction companies based in the United States

Ranked by team size
Top 25 of 335 port construction companies based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to port construction companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLong Beach, CA, United StatesHQ checked Sep 17, 20261,001-5,0001,178 contacts →

Indirect evidence

“Moffatt & Nichol is a leading U.S-based global infrastructure advisor specializing in the planning and design of facilities that shape and serve our coastlines, harbors and…”

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceHouston, TX, United StatesHQ checked Sep 17, 20261,001-5,000916 contacts →

Indirect 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 17, 2026
3Partial evidenceSeattle, WA, United StatesHQ checked Sep 17, 2026501-1,000592 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
4Indirect evidenceNanuet, NY, United StatesHQ checked Sep 17, 2026201-500290 contacts →

Indirect evidence

“Halmar International, where for more than 60 years the future of transportation infrastructure is built.”

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceLa Crosse, WI, United StatesHQ checked Sep 17, 2026501-1,000241 contacts →

Indirect evidence

“At Brennan, our people are our top priority.”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceWashougal, WA, United StatesHQ checked Sep 17, 202651-200236 contacts →

Partial evidence

“Ballard Marine Construction (Ballard) is a specialty marine and underwater contractor.”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidencePlain, WI, United StatesHQ checked Sep 17, 2026501-1,000220 contacts →

Indirect evidence

“A national reputation for quality and safety isn’t built overnight.”

Source: RevenueBase Database · checked Sep 17, 2026
8Indirect evidenceBrea, CA, United StatesHQ checked Sep 17, 2026201-500199 contacts →

Indirect evidence

“Part of Colas USA, Sully-Miller Contracting Company is one of the premier road and highway contractors, rail & intermodal, seaport, airport, federal/military and specialty…”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceGalveston, TX, United StatesHQ checked Sep 17, 2026n/a178 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidenceJacksonville, FL, United StatesHQ checked Sep 17, 2026201-500163 contacts →

Partial evidence

“Bellingham Marine is an established leader in the marine construction world.”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceSan Rafael, CA, United StatesHQ checked Sep 17, 2026201-500158 contacts →

Partial 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 17, 2026
12Indirect evidenceNicholasville, KY, United StatesHQ checked Sep 17, 202651-200145 contacts →

Indirect evidence

“Marine Solutions is a premier marine and bridge infrastructure firm which delivers complex solutions to demanding projects.”

Source: RevenueBase Database · checked Sep 17, 2026
13Partial evidenceMiami, FL, United StatesHQ checked Sep 17, 202651-200139 contacts →

Partial evidence

“GLF Construction Corporation was incorporated in Miami, Florida, in 1993.”

Source: RevenueBase Database · checked Sep 17, 2026
14Partial evidenceQuincy, MA, United StatesHQ checked Sep 17, 2026201-500138 contacts →

Partial evidence

“Cashman is a privately held multi-disciplinary construction and development company, founded and owned by Jay M.”

Source: RevenueBase Database · checked Sep 17, 2026
15Partial evidenceChannelview, TX, United StatesHQ checked Sep 17, 2026201-500126 contacts →

Partial evidence

“Russell Marine LLC is a heavy civil marine construction company located in Channelview, Texas.”

Source: RevenueBase Database · checked Sep 17, 2026
16Partial evidenceBaltimore, MD, United StatesHQ checked Sep 17, 202611-50118 contacts →

Partial evidence

“SUS specializes in underwater marine construction including bridges, dams, pipelines, intakes, outfalls, inspection services, piers and wharfs and other public safety and local…”

Source: RevenueBase Database · checked Sep 17, 2026
17Indirect evidenceSeattle, WA, United StatesHQ checked Sep 17, 202651-200109 contacts →

Indirect evidence

“Pacific Pile & Marine (PPM) is a heavy civil and marine general contractor.”

Source: RevenueBase Database · checked Sep 17, 2026
18Indirect evidenceMedley, FL, United StatesHQ checked Sep 17, 2026201-50090 contacts →

Indirect evidence

“MasTec Civil (formerly Condotte America) is a heavy civil contractor delivering complex transportation and infrastructure projects that move communities forward across the…”

Source: RevenueBase Database · checked Sep 17, 2026
19Strong evidenceSudbury, MA, United StatesHQ checked Sep 17, 2026501-1,00085 contacts →

Strong evidence

“Northern Construction Service, LLC is a New England-based general contractor specializing in bridge construction, civil site development, marine infrastructure (ports and…”

Source: RevenueBase Database · checked Sep 17, 2026
20Indirect evidenceGrove City, OH, United StatesHQ checked Sep 17, 202651-20076 contacts →

Indirect evidence

“Based in Grove City, Ohio, C.J.”

Source: RevenueBase Database · checked Sep 17, 2026
21Indirect evidenceFulton, MO, United StatesHQ checked Sep 17, 202651-20075 contacts →

Indirect evidence

“OCCI, Inc.”

Source: RevenueBase Database · checked Sep 17, 2026
22Partial evidenceTampa, FL, United StatesHQ checked Sep 17, 202651-20074 contacts →

Partial 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 17, 2026
23Partial evidenceSan Diego, CA, United StatesHQ checked Sep 17, 2026201-50071 contacts →

Partial evidence

“Established in 1991, Coffman Specialties, Inc.(CSI) is a Woman Owned Business Enterprise specializing in the construction of large public and governmental projects.”

Source: RevenueBase Database · checked Sep 17, 2026
24Partial evidenceAlameda, CA, United StatesHQ checked Sep 17, 202651-20061 contacts →

Partial evidence

“Power Engineering Construction Company is a California corporation that opened for business in 1986 specifically to address the needs of owners and engineers faced with difficult…”

Source: RevenueBase Database · checked Sep 17, 2026
25Indirect evidencePortsmouth, VA, United StatesHQ checked Sep 17, 202651-20060 contacts →

Indirect evidence

“Built for tide & time since 1946.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 335 port construction companies based in the United States

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Port construction companies based in the United States at a glance

As of Sep 17, 2026
38.1%Verified-email coverage
28.3Average contacts per company
11-50Median size (employees)
2.7%Largest-city concentration · Houston
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
127
11-50
122
51-200
54
201-500
14
501-1,000
10
1,001-5,000
4
5,001-10,000
1

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 335 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 port construction 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 “port construction 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 port construction 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 port construction 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, 3,614 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 17, 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 port construction 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 port construction companies are there based in the United States?

RevenueBase identified 335 port construction 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?

Moffatt & Nichol, headquartered in Long Beach, tops this list with the largest team on record.

Which city has the most port construction companies?

Houston leads with 9 headquartered companies, followed by Jacksonville (8) and Tampa (7).

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 3,614 verified decision-maker contacts tracked across these 335 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 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 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.