Company lists · Data refreshed September 2026

Top 25 Port environmental consultancies worldwide

Name: Port environmental consultancies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 7,597 companies tracked

RevenueBase identified 7,597 port environmental consultancies worldwide as of September 2026 and tracks 74,066 professional contacts across them, including 23,498 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers port environmental consultancies 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 29, 2026. Country and city lists for port environmental consultancies 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 29, 2026 86% judged on-target in blind review

7,597Companies

74,066Contacts tracked

23,498Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest port environmental consultancies worldwide

Ranked by team size

Top 25 of 7,597 port environmental consultancies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to port environmental consultancies: 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	Swca Environmental Consultants	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,629 contacts →
	Partial evidence “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Source: RevenueBase Database · checked Sep 29, 2026
2	DGE Danmark	Indirect evidence	Højbjerg, DenmarkHQ checked Sep 29, 2026	n/a	1,176 contacts →
	Indirect evidence “Miljø er vores kernekompetence og vores ansvar.” Source: RevenueBase Database · checked Sep 29, 2026
3	Barr Engineering CO	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,088 contacts →
	Partial evidence “Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Source: RevenueBase Database · checked Sep 29, 2026
4	ATC Group Services LLC	Indirect evidence	Lafayette, LA, United StatesHQ checked Sep 29, 2026	1,001-5,000	865 contacts →
	Indirect evidence “ATC Group Services LLC is now Atlas.” Source: RevenueBase Database · checked Sep 29, 2026
5	DUDEK	Partial evidence	Encinitas, CA, United StatesHQ checked Sep 29, 2026	501-1,000	795 contacts →
	Partial evidence “Dudek is an environmental, planning, and engineering consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026
6	Anchor QEA	Partial evidence	Seattle, WA, United StatesHQ checked Sep 29, 2026	501-1,000	479 contacts →
	Partial evidence “Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…” Source: RevenueBase Database · checked Sep 29, 2026
7	Sete Soluções E Tecnologia Ambiental	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	501-1,000	448 contacts →
	Indirect evidence “Somos uma das maiores consultorias em meio ambiente do Brasil, fundada em 1997, contando, hoje, com uma equipe técnica multidisciplinar permanente, que congrega profissionais das…” Source: RevenueBase Database · checked Sep 29, 2026
8	Groundwater & Environmental Services, INC	Partial evidence	Wall Township, NJ, United StatesHQ checked Sep 29, 2026	201-500	447 contacts →
	Partial evidence “We are Groundwater & Environmental Services, Inc, better known as GES.” Source: RevenueBase Database · checked Sep 29, 2026
9	Fairhurst	Indirect evidence	Glasgow, United KingdomHQ checked Sep 29, 2026	201-500	437 contacts →
	Indirect evidence “Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.” Source: RevenueBase Database · checked Sep 29, 2026
10	ROUX	Partial evidence	Islandia, NY, United StatesHQ checked Sep 29, 2026	201-500	433 contacts →
	Partial evidence “Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Source: RevenueBase Database · checked Sep 29, 2026
11	Briggs Marine	Strong evidence	Burntisland, United KingdomHQ checked Sep 29, 2026	501-1,000	387 contacts →
	Strong evidence “Briggs Marine is a leading provider of marine and environmental services, specialising in port and marine operations, subsea and environmental support and vessel charter.” Source: RevenueBase Database · checked Sep 29, 2026
12	EMM Consulting PTY Limited	Indirect evidence	St Leonards, AustraliaHQ checked Sep 29, 2026	201-500	361 contacts →
	Indirect evidence “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Source: RevenueBase Database · checked Sep 29, 2026
13	Umwelt Environmental & Social Consultants	Indirect evidence	Teralba, AustraliaHQ checked Sep 29, 2026	201-500	329 contacts →
	Indirect evidence “Umwelt has been trusted by clients and communities for over 30 years.” Source: RevenueBase Database · checked Sep 29, 2026
14	Environmental Consulting & Technology, Inc. ECT	Partial evidence	Gainesville, FL, United StatesHQ checked Sep 29, 2026	201-500	305 contacts →
	Partial evidence “Environmental Consulting & Technology, Inc.(ECT) is a multi-disciplinary environmental and sustainability consulting firm delivering strategy, permitting, design, and management…” Source: RevenueBase Database · checked Sep 29, 2026
15	Amplo Engenharia E Gestão DE Projetos	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	201-500	298 contacts →
	Indirect evidence “A Amplo Engenharia destaca-se por sua especialização em Estudos Ambientais, abrangendo áreas diretamente relacionadas ao Licenciamento Ambiental, Monitoramento Ambiental…” Source: RevenueBase Database · checked Sep 29, 2026
16	ETC	Strong evidence	Trento, ItalyHQ checked Sep 29, 2026	n/a	288 contacts →
	Strong evidence “ETC is a consultancies and services company focused on environmental sector, made up of environmental and civil engineers.” Source: RevenueBase Database · checked Sep 29, 2026
17	Ecology And Environment, INC	Indirect evidence	Lancaster, NY, United StatesHQ checked Sep 29, 2026	5,001-10,000	278 contacts →
	Indirect evidence “E&E is now WSP USA.” Source: RevenueBase Database · checked Sep 29, 2026
18	Pattle Delamore Partners	Strong evidence	Auckland, New ZealandHQ checked Sep 29, 2026	201-500	277 contacts →
	Strong evidence “PDP is one of Aotearoa New Zealand’s leading environmental science, engineering, and advisory consultancies.” Source: RevenueBase Database · checked Sep 29, 2026
19	Wetland Studies And Solutions, Inc. Wssi , A Davey Tree Company	Partial evidence	Gainesville, VA, United StatesHQ checked Sep 29, 2026	201-500	268 contacts →
	Partial evidence “For more than 30 years, WSSI has been the trusted partner in environmental, regulatory, cultural resources, and water resources engineering consulting.” Source: RevenueBase Database · checked Sep 29, 2026
20	Jbs&g	Strong evidence	Sydney, AustraliaHQ checked Sep 29, 2026	201-500	262 contacts →
	Strong evidence “Established in 1996, JBS & G is one of Australia’s leading environmental consultancies with offices in Sydney, Melbourne, Perth, Adelaide, Brisbane, Canberra, Darwin, Wollongong…” Source: RevenueBase Database · checked Sep 29, 2026
21	GSI Environmental INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	259 contacts →
	Partial evidence “GSI Environmental, Inc.(GSI), is an environmental engineering and science consulting firm committed to measuring, analyzing, and solving complex environmental problems around the…” Source: RevenueBase Database · checked Sep 29, 2026
22	Pt. Kwarsa Hexagon	Indirect evidence	Bandung, IndonesiaHQ checked Sep 29, 2026	201-500	255 contacts →
	Indirect evidence “KWARSA HEXAGON is an independent consultant company founded in the year of 1982.” Source: RevenueBase Database · checked Sep 29, 2026
23	Tonkin	Partial evidence	Adelaide, AustraliaHQ checked Sep 29, 2026	201-500	237 contacts →
	Partial evidence “Tonkin is a leading provider of engineering, environmental and consultancy services to private and public organisations.” Source: RevenueBase Database · checked Sep 29, 2026
24	GAP Ssma	Indirect evidence	Goiânia, BrazilHQ checked Sep 29, 2026	201-500	234 contacts →
	Indirect evidence “A GAP Ambiental oferece serviços para pequenas, médias e grandes empresas em diversas áreas que vão desde o licenciamento ao acompanhamento da execução de projetos.” Source: RevenueBase Database · checked Sep 29, 2026
25	Walm Engenharia E Tecnologia Ambiental	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	51-200	234 contacts →
	Indirect evidence “A WALM Engenharia e Tecnologia Ambiental Ltda.” Source: RevenueBase Database · checked Sep 29, 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 environmental consultancies. 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 environmental consultancies.
Partial evidence: Its own public description names part of port environmental consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name port environmental consultancies. 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 7,597 port environmental consultancies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 23,498 reachable decision-makers.

Free signup · no credit card

View the full list →

Port environmental consultancies worldwide at a glance

As of Sep 29, 2026

31.7%Verified-email coverage

9.7Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

4,928

11-50

2,109

51-200

385

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 environmental consultancies, 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: Every country. Country and city lists for port environmental consultancies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “port environmental consultancies”. 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 environmental consultancies), 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 environmental consultancies, 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, 23,498 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 29, 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 environmental consultancies by location

37 lists · largest first

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

Countries

Cities

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 environmental consultancies, 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 environmental consultancies are there worldwide?

RevenueBase identified 7,597 port environmental consultancies 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?

Swca Environmental Consultants, headquartered in Phoenix, tops this list with the largest team on record.

Which country has the most port environmental consultancies?

Brazil leads with 1,429 companies, followed by the United States (691) and the United Kingdom (454). Every port environmental consultancies list by country and city is linked on this page.

Which city has the most port environmental consultancies?

Sao Paulo leads with 139 headquartered companies, followed by Belo Horizonte (77) and Rio De Janeiro (73).

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 23,498 verified decision-maker contacts tracked across these 7,597 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 7,597 port environmental consultancies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.