Company lists · Data refreshed November 2026

Top 25 Ecosystem impact assessors worldwide

RevenueBase identified 1,191 company matches for ecosystem impact assessors worldwide as of November 2026 and tracks 12,171 professional contacts across them, including 4,124 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for ecosystem impact assessors worldwide, 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. Country and city lists for ecosystem impact assessors follow the table.

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
1,191Companies
12,171Contacts tracked
4,124Verified emails
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The 25 largest ecosystem impact assessors worldwide

Ranked by team size
Top 25 of 1,191 company matches for ecosystem impact assessors worldwide, 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 matchMèze, FranceHQ recorded Nov 6, 2026201-500555 contacts →

Exact match

“Fondée en 1993 par des passionnés de nature engagés, Biotope s’est imposée au fil des années comme précurseur et leader mondial de l’ingénierie environnementale et de la…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchTrondheim, NorwayHQ recorded Nov 6, 2026201-500382 contacts →

Exact match

“The Norwegian Institute for Nature Research (NINA) is Norway’s leading institution for applied ecological research.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNorth Vancouver, BC, CanadaHQ recorded Nov 6, 202651-200291 contacts →

Exact match

“As one of Canada’s Top SME Employers in 2025 and North Vancouver Chamber’s Best Employer in 2024, Hatfield provides high-quality environmental and social services for private and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHelsby, United KingdomHQ recorded Nov 6, 2026201-500181 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCulemborg, NetherlandsHQ recorded Nov 6, 202651-200146 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCape Town, South AfricaHQ recorded Nov 6, 2026201-500136 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSurrey, United KingdomHQ recorded Nov 6, 2026201-500132 contacts →

Exact match

“NatureMetrics is a world leader in delivering nature data and intelligence, deploying cutting-edge technology to generate biodiversity insights at scale using environmental DNA…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 2026n/a124 contacts →

Exact match

“Gaia Ecologie, uw toegewijde ecologisch adviesbureau, is gespecialiseerd in hoogwaardig grootschalig ecologisch onderzoek en uitgebreide rapportage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCoventry, United KingdomHQ recorded Nov 6, 202651-200118 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLinköping, SwedenHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“Calluna is one of the leading Swedish companies for ecological consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNorth Vancouver, BC, CanadaHQ recorded Nov 6, 202611-50105 contacts →

Exact match

“For more than 15 years, we operated as Sartori Environmental Inc, establishing an exceptional reputation for our reliable, responsible, and innovative approach.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchKampala, UgandaHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“Helping organisations achieve sustainable growth through ESG, environmental, biodiversity, impact assessments, climate & social consultancy across Africa Climate Change &…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAgoura Hills, AZ, United StatesHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“Aspen Environmental Group is an expert interdisciplinary environmental impact analysis firm, specializing in the management of environmental assessment efforts under CEQA, NEPA…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAvignon, FranceHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“Fondée en 1998, Naturalia Environnement s’impose aujourd’hui comme un acteur reconnu en matière d’expertises naturalistes et d’études réglementaires portant sur la biodiversité.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBeeston, United KingdomHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“RammSanderson Ecology Ltd is a specialist ecological consultancy based at offices in the East Midlands, West Midlands, Yorkshire, North West, South West and South East, offering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAbingdon, United KingdomHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“BSG Ecology is an award-winning independent ecological consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPézenas, FranceHQ recorded Nov 6, 202611-5079 contacts →

Exact match

“Spécialisé dans l’expertise de la faune, de la flore et des milieux naturels, le bureau d’études ALTIFAUNE a développé une expérience technique et scientifique au service de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCentral Jakarta, IndonesiaHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Forest Carbon is an environmental asset manager, stewarding Southeast Asia’s most valuable ecosystems to deliver long term value for climate, biodiversity, and communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMumbai, IndiaHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“ENVIRO ANALYSTS & ENGINEERS PVT.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchJenlain, FranceHQ recorded Nov 6, 202611-5073 contacts →

Exact match

“Fondée en 2008, notre entreprise œuvre pour la prise en compte de la biodiversité dès la conception de nouveaux projets d'aménagement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMarseille, FranceHQ recorded Nov 6, 202611-5070 contacts →

Exact match

“TEREA is a professional environmental consulting company specialized in environment and sustainable management of natural resources.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBanbury, United KingdomHQ recorded Nov 6, 202611-5068 contacts →

Exact match

“Aspect Ecology's established team is highly qualified in all areas of ecological planning and biodiversity net gain (BNG).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCarleton-sur-mer, QC, CanadaHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“PESCA Environment assists you in the realization of your projects for more than 30 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBend, OR, United StatesHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“SummitWest is an environmental consulting company that is home to a team of dynamic, solution-oriented thinkers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLa Montagne, FranceHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“Calidris est un bureau d’études spécialisé dans le domaine de l’écologie.”

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

Showing 25 of 1,191 ecosystem impact assessors worldwide

See the full list, filter by size, metro and specialty, and access 4,124 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ecosystem impact assessors worldwide at a glance

As of Nov 6, 2026
33.9%Verified-email coverage
10.2Average contacts per company
1-10Median size (employees)
1.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
818
11-50
276
51-200
65
201-500
12
1,001-5,000
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for ecosystem impact assessors are linked below.
What qualifies
Company records worldwide whose business descriptions match “ecosystem impact assessors” 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. 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 4,124 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.

Ecosystem impact assessors by location

10 lists · largest first

Every Ecosystem impact assessors 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 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 “ecosystem impact assessors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ecosystem impact assessors are there worldwide?

RevenueBase identified 1,191 company matches for ecosystem impact assessors worldwide 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?

Biotope tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most ecosystem impact assessors?

The United Kingdom leads with 157 companies, followed by the United States (99) and Australia (82). Every ecosystem impact assessors list by country and city is linked on this page.

Which city has the most ecosystem impact assessors?

London leads with 12 company records, followed by Cape Town (7) and Belo Horizonte (6).

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 4,124 professional contacts with verified work emails tracked across these 1,191 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.