Company lists · Data refreshed September 2026

Top 25 Endangered species consulting firms worldwide

RevenueBase identified 2,099 endangered species consulting firms worldwide as of September 2026 and tracks 22,448 professional contacts across them, including 9,768 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers endangered species consulting firms 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 28, 2026. Country and city lists for endangered species consulting firms 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 28, 2026 86% judged on-target in blind review
2,099Companies
22,448Contacts tracked
9,768Verified emails
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The 25 largest endangered species consulting firms worldwide

Ranked by team size
Top 25 of 2,099 endangered species consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to endangered species consulting firms: 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
1Partial evidencePhoenix, AZ, United StatesHQ checked Sep 28, 20261,001-5,0001,629 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 28, 2026
2Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026501-1,000732 contacts →

Partial evidence

“ESA is a 100% employee-owned environmental consulting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceVentura, CA, United StatesHQ checked Sep 28, 2026501-1,000479 contacts →

Partial evidence

“Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 28, 2026501-1,000448 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 28, 2026
5Partial evidenceCheyenne, WY, United StatesHQ checked Sep 28, 2026201-500408 contacts →

Partial evidence

“WEST provides environmental and statistical consulting services and contract research nationally and internationally to industry, government, and private organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceBedford, NH, United StatesHQ checked Sep 28, 2026201-500189 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceSan Rafael, CA, United StatesHQ checked Sep 28, 202651-200183 contacts →

Indirect evidence

“WRA is an environmental consultancy that’s making a net positive impact.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceSt.-maurice, FranceHQ checked Sep 28, 2026201-500174 contacts →

Partial evidence

“For over 35 years, Écosphère has been providing consulting and engineering services in the environmental field.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceRocklin, CA, United StatesHQ checked Sep 28, 202651-200166 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceHelsby, United KingdomHQ checked Sep 28, 2026201-500164 contacts →

Indirect evidence

“RSK Biocensus is an ecological consultancy with a presence across the country and an extensive network of ecologists throughout the UK.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceCambridge, MA, United StatesHQ checked Sep 28, 202651-200163 contacts →

Partial evidence

“IEc is an environmental consulting firm with four decades of experience providing consulting services to a diverse client base.”

Source: RevenueBase Database · checked Sep 28, 2026
12Strong evidencePrince George, BC, CanadaHQ checked Sep 28, 202651-200159 contacts →

Strong evidence

“EDI provides you with practical, environmental consulting services, specializing in aquatic and terrestrial sciences.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceParis, FranceHQ checked Sep 28, 202651-200143 contacts →

Indirect evidence

“Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceCulemborg, NetherlandsHQ checked Sep 28, 202651-200140 contacts →

Indirect evidence

“Independent, practical research, advice and consultancy for people and wildlife.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceMelbourne, AustraliaHQ checked Sep 28, 202651-200136 contacts →

Indirect evidence

“Biosis is a team of qualified and professional consultants, experienced in and passionate about ecology and cultural heritage.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceAlbacete, SpainHQ checked Sep 28, 202651-200135 contacts →

Partial evidence

“Consulting company based in Castilla-La Mancha (Spain) of national and international scope.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceGuildford, United KingdomHQ checked Sep 28, 202651-200133 contacts →

Indirect evidence

“Thomson Environmental Consultants are experts in environmental compliance with offices in Guildford, Leeds, Cardiff, Birmingham and Manchester.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 28, 202651-200121 contacts →

Indirect evidence

“A Empresa Bicho do Mato Meio Ambiente Ltda.”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceCape Town, South AfricaHQ checked Sep 28, 2026201-500120 contacts →

Strong evidence

“Established in South Africa in 2003, NCC-Group delivers specialist consulting and implementation services designed to meet the unique needs of each project – both locally and…”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceCoventry, United KingdomHQ checked Sep 28, 202651-200118 contacts →

Partial evidence

“With a legacy of over 30 years, we are a UK leading independent consultancy specialising in the preservation of the natural environment.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceBeek En Donk, NetherlandsHQ checked Sep 28, 202651-200117 contacts →

Indirect evidence

“Teia is dienstbaar aan uw ecologisch adviesbureau!”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceSantiago, ChileHQ checked Sep 28, 2026201-500114 contacts →

Partial evidence

“MANKUK Consulting & Services es una consultora especializada en asesoría ambiental y en la obtención y tramitación de permisos para proyectos de inversión, con destacado…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceSaint-charles-sur-richelieu, QC, CanadaHQ checked Sep 28, 202651-200107 contacts →

Indirect evidence

“Depuis plus de 45 ans, le Groupe Conseil UDA Inc.(UDA) accompagne, encadre et soutient ses clients dans leurs projets en environnement, en agriculture et en foresterie grâce à…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceVernon, BC, CanadaHQ checked Sep 28, 2026501-1,000105 contacts →

Indirect evidence

“Associated Environmental Consultants are experts in environmental science and management with a passion for our work, our communities, and our environment.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceBurleigh Heads, AustraliaHQ checked Sep 28, 202651-200105 contacts →

Partial evidence

“Ecosure is the largest specialist privately owned environmental consultancy in Queensland, providing services across Australia and the Pacific to major projects, business…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 2,099 endangered species consulting firms worldwide

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Endangered species consulting firms worldwide at a glance

As of Sep 28, 2026
43.5%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
0.7%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,449
11-50
524
51-200
98
201-500
13
501-1,000
6
1,001-5,000
2

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 endangered species consulting firms, 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 endangered species consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “endangered species consulting firms”. 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 endangered species consulting firms), 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 endangered species consulting firms, 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, 9,768 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 28, 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.

Endangered species consulting firms by location

10 lists · largest first

Every Endangered species consulting firms 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 endangered species consulting firms, 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 endangered species consulting firms are there worldwide?

RevenueBase identified 2,099 endangered species consulting firms 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 endangered species consulting firms?

The United States leads with 576 companies, followed by Brazil (225) and the United Kingdom (209). Every endangered species consulting firms list by country and city is linked on this page.

Which city has the most endangered species consulting firms?

Sao Paulo leads with 14 headquartered companies, followed by Calgary (13) and Belo Horizonte (11).

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 9,768 verified decision-maker contacts tracked across these 2,099 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 28, 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.