Company lists · Data refreshed September 2026

Top 25 Port and harbor construction companies worldwide

Name: Port and harbor construction companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 671 companies tracked

RevenueBase identified 671 port and harbor construction companies worldwide as of September 2026 and tracks 23,357 professional contacts across them, including 6,891 with verified work emails and 0 with mobile numbers. The United States is the largest market and Rio De Janeiro the largest hub.

This list covers port and harbor construction companies worldwide, 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. Country and city lists for port and harbor construction companies follow the table.

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

671Companies

23,357Contacts tracked

6,891Verified emails

0Mobile numbers

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The 25 largest port and harbor construction companies worldwide

Ranked by team size

Top 25 of 671 port and harbor construction companies worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to port and harbor 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Boskalis	Indirect evidence	Papendrecht, NetherlandsHQ checked Sep 17, 2026	10001+	3,366 contacts →
	Indirect evidence “Boskalis is a leading global services provider operating in the dredging, maritime infrastructure and maritime services sectors.” Source: RevenueBase Database · checked Sep 17, 2026
2	Moffatt & Nichol	Partial evidence	Long Beach, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,178 contacts →
	Partial 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
3	BELOV	Indirect evidence	Matriz, BrazilHQ checked Sep 17, 2026	1,001-5,000	1,108 contacts →
	Indirect evidence “A Belov Engenharia foi criada em 1981 em Salvador/BA, pelo engenheiro Aleixo Belov, que à época desfrutava de uma experiência de 15 anos de participação na condução das maiores…” Source: RevenueBase Database · checked Sep 17, 2026
4	Great Lakes Dredge & Dock Company, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	916 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
5	Bollinger Shipyards	Partial evidence	Lockport, United StatesHQ checked Sep 17, 2026	5,001-10,000	853 contacts →
	Partial evidence “Bollinger Shipyards is the leading provider of quality new construction, repair and conversion products and services to both the military and commercial marine industry.” Source: RevenueBase Database · checked Sep 17, 2026
6	Enseada	Partial evidence	Maragogipe, BrazilHQ checked Sep 17, 2026	1,001-5,000	599 contacts →
	Partial evidence “Largest naval, industrial and port complex in Bahia.” Source: RevenueBase Database · checked Sep 17, 2026
7	Manson Construction CO	Partial evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	501-1,000	592 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
8	Internacional Maritima Ltda	Indirect evidence	São Luís, BrazilHQ checked Sep 17, 2026	501-1,000	400 contacts →
	Indirect evidence “Portuary Support and Maritimes Services Company.” Source: RevenueBase Database · checked Sep 17, 2026
9	Ocean Océan	Strong evidence	Québec, QC, CanadaHQ checked Sep 17, 2026	501-1,000	351 contacts →
	Strong evidence “Harbour Towing \| Shipyard \| Ship Repairs \| Naval Construction \| Equipement Rental \| Floating wharves \| Barge and Worboat Rental \| Salvage \| Marine Transportation \| Dredging Ocean…” Source: RevenueBase Database · checked Sep 17, 2026
10	CTC Infra	Partial evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	51-200	320 contacts →
	Partial evidence “Designed to become a major Brazilian construction company, CTC Infra was born in still under the name Constremac, shortly after acquiring Copabo Construções, a company belonging…” Source: RevenueBase Database · checked Sep 17, 2026
11	Port Of Amsterdam	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 17, 2026	201-500	306 contacts →
	Partial evidence “Port of Amsterdam manages, operates and develops the port.” Source: RevenueBase Database · checked Sep 17, 2026
12	Port Authority Of NEW South Wales	Strong evidence	Walsh Bay, AustraliaHQ checked Sep 17, 2026	201-500	282 contacts →
	Strong evidence “Port Authority of New South Wales provides safe, reliable and efficient port and marine services for commercial shipping in Sydney Harbour, Port Botany, Port Kembla, Newcastle…” Source: RevenueBase Database · checked Sep 17, 2026
13	Grupo MS	Indirect evidence	Barcarena, BrazilHQ checked Sep 17, 2026	501-1,000	246 contacts →
	Indirect evidence “Atuamos com excelência em operações portuárias, logística de granéis, obras civis, terraplenagem, transportes, armazenagem, locação de equipamentos pesados e operação de…” Source: RevenueBase Database · checked Sep 17, 2026
14	J.F. Brennan Company	Indirect evidence	La Crosse, WI, United StatesHQ checked Sep 17, 2026	501-1,000	241 contacts →
	Indirect evidence “At Brennan, our people are our top priority.” Source: RevenueBase Database · checked Sep 17, 2026
15	Total AMS	Partial evidence	North Fremantle, AustraliaHQ checked Sep 17, 2026	201-500	198 contacts →
	Partial evidence “For more than 25 years, TAMS has partnered with clients through collaborative delivery models, applying specialist expertise to construct and maintain critical marine and port…” Source: RevenueBase Database · checked Sep 17, 2026
16	G & H Towing Company	Partial evidence	Galveston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	187 contacts →
	Partial evidence “G&H Towing Company is one of the oldest and most progressive towing companies on the Texas Gulf Coast, and we operate an outstanding fleet of over harbor tugs with…” Source: RevenueBase Database · checked Sep 17, 2026
17	Callan Marine LTD	Indirect evidence	Galveston, TX, United StatesHQ checked Sep 17, 2026	n/a	178 contacts →
	Indirect evidence “The Callan Marine team offers comprehensive dredging solutions for any project.” Source: RevenueBase Database · checked Sep 17, 2026
18	Portocel	Indirect evidence	Aracruz, BrazilHQ checked Sep 17, 2026	201-500	178 contacts →
	Indirect evidence “Somos um porto multipropósito!” Source: RevenueBase Database · checked Sep 17, 2026
19	Gulf Copper	Partial evidence	Port Arthur, TX, United StatesHQ checked Sep 17, 2026	501-1,000	171 contacts →
	Partial evidence “Gulf Copper, a Davie Defense subsidiary, has been a leader in ship repair, fabrication, and marine services for more than 75 years, with facilities in Galveston and Port Arthur…” Source: RevenueBase Database · checked Sep 17, 2026
20	Rpeotta	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	169 contacts →
	Indirect evidence “A RPEOTTA tem por objetivo a prestação de serviços pautados no compromisso com a excelência em engenharia consultiva em Projetos (Conceitual, Básica e Detalhada), estudo e…” Source: RevenueBase Database · checked Sep 17, 2026
21	Hall Contracting	Partial evidence	Buderim, AustraliaHQ checked Sep 17, 2026	51-200	165 contacts →
	Partial evidence “Hall Contracting is Australia’s largest privately-owned dredging, civil and marine construction company with offices in South East Asia, the Pacific Islands and Australia.” Source: RevenueBase Database · checked Sep 17, 2026
22	Bellingham Marine	Partial evidence	Jacksonville, FL, United StatesHQ checked Sep 17, 2026	201-500	163 contacts →
	Partial evidence “Bellingham Marine is an established leader in the marine construction world.” Source: RevenueBase Database · checked Sep 17, 2026
23	The Dutra Group	Partial evidence	San Rafael, CA, United StatesHQ checked Sep 17, 2026	201-500	158 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
24	Ster Engenharia Ltda	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	201-500	147 contacts →
	Indirect evidence “Ster Engenharia” Source: RevenueBase Database · checked Sep 17, 2026
25	Marine Solutions, INC	Indirect evidence	Nicholasville, KY, United StatesHQ checked Sep 17, 2026	51-200	145 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

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: port and harbor construction 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 port and harbor construction companies.
Partial evidence: Its own public description names part of port and harbor construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name port and harbor construction 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 671 port and harbor construction companies worldwide

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Port and harbor construction companies worldwide at a glance

As of Sep 17, 2026

29.5%Verified-email coverage

34.8Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · Rio De Janeiro

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

252

11-50

238

51-200

110

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 and harbor 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.
Coverage: 8 countries, largest first: the United States, Brazil, the Netherlands, Canada, Australia, Spain, the United Kingdom, France. Country and city lists for port and harbor construction companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “port and harbor 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 and harbor 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 and harbor construction companies, and records with no verified work email.
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, 6,891 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.

Port and harbor construction companies by location

8 lists · largest first

Every Port and harbor construction companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 and harbor 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 and harbor construction companies are there worldwide?

RevenueBase identified 671 port and harbor construction companies worldwide 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?

Boskalis, headquartered in Papendrecht, tops this list with the largest team on record.

Which country has the most port and harbor construction companies?

The United States leads with 384 companies, followed by Brazil (58) and the Netherlands (43). Every port and harbor construction companies list by country and city is linked on this page.

Which city has the most port and harbor construction companies?

Rio De Janeiro leads with 12 headquartered companies, followed by Tampa (10) and Jacksonville (9).

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 6,891 verified decision-maker contacts tracked across these 671 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.