Company lists · Data refreshed September 2026

Top 25 Ecological assessment firms based in Germany

Name: Ecological assessment firms based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 122 companies tracked

RevenueBase identified 122 ecological assessment firms headquartered in Germany as of September 2026 and tracks 533 professional contacts across them, including 191 with verified work emails. Berlin is the largest hub.

This list covers ecological assessment firms headquartered in Germany, 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 19, 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 19, 2026 86% judged on-target in blind review

122Companies

533Contacts tracked

191Verified emails

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The 25 largest ecological assessment firms based in Germany

Ranked by team size

Top 25 of 122 ecological assessment firms based in Germany, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to ecological assessment 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bioconsult SH	Indirect evidence	Husum, GermanyHQ checked Sep 19, 2026	51-200	47 contacts →
	Indirect evidence “BioConsult SH ist ein Team von Naturwissenschaftlern, das seit 1998 als unabhängiges, ökologisches Forschungs- und Consultingbüro besteht.” Source: RevenueBase Database · checked Sep 19, 2026
2	GFN Gesellschaft FÜR Freilandökologie UND Naturschutzplanung MBH	Indirect evidence	Molfsee, GermanyHQ checked Sep 19, 2026	201-500	28 contacts →
	Indirect evidence “Die GFN - Gesellschaft für Freilandökologie und Naturschutzplanung mbH - ist ein seit 1993 bestehendes Planungsbüro.” Source: RevenueBase Database · checked Sep 19, 2026
3	GRAS	Partial evidence	Köln, GermanyHQ checked Sep 19, 2026	11-50	27 contacts →
	Partial evidence “GRAS provides reliable information on ecological and social risks related to biomass of agricultural or forestry origin.” Source: RevenueBase Database · checked Sep 19, 2026
4	Klinger UND Partner Gmbh	Indirect evidence	Stuttgart, GermanyHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence “Umwelt verantwortlich gestalten – unter diesem Leitmotiv bearbeiten wir bereits seit drei Jahrzehnten Tiefbau und Umweltschutzprojekte für öffentlich-rechtliche und private Kunden.” Source: RevenueBase Database · checked Sep 19, 2026
5	Arbeitsgruppe FÜR Regionale Struktur- UND Umweltforschung Gmbh Arsu	Indirect evidence	Oldenburg, GermanyHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Die ARSU GmbH, mit Sitz in Oldenburg, bearbeitet seit mehr als 40 Jahren Planungs, Forschungs- und Umsetzungsprojekte mit einer großen inhaltlichen Bandbreite in den Bereichen…” Source: RevenueBase Database · checked Sep 19, 2026
6	Gfbu-Consult Gesellschaft FÜR Umwelt- UND Managementberatung MBH	Indirect evidence	Hoppegarten Ot Hönow, GermanyHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Die GfBU-Consult ist im Bereich der Umwelt- und Genehmigungsdienstleistungen eines der führenden Beratungs- und Ingenieurbüros.” Source: RevenueBase Database · checked Sep 19, 2026
7	Lcee Life Cycle Engineering Experts Gmbh	Indirect evidence	Darmstadt, GermanyHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Wir bieten Ihnen umfassende Beratungsleistungen zur ökologischen, ökonomischen, funktionalen und technischen Optimierung von Bauvorhaben üben den gesamten Lebenszyklus an.” Source: RevenueBase Database · checked Sep 19, 2026
8	ÖKO Control Gmbh	Indirect evidence	Wunstorf, GermanyHQ checked Sep 19, 2026	1-10	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
9	Gaiac ECO Assessment & Research	Indirect evidence	Aachen, GermanyHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “gaiac is a research institute (registered association), founded in 2003 as a legally independent spin-off from the Institute for Environmental Research at RWTH Aachen University…” Source: RevenueBase Database · checked Sep 19, 2026
10	MEP Plan Gmbh	Indirect evidence	Dresden, GermanyHQ checked Sep 19, 2026	51-200	12 contacts →
	Indirect evidence “Die MEP Plan GmbH wurde im Jahr 2012 gegründet.” Source: RevenueBase Database · checked Sep 19, 2026
11	Rietzler Gruppe Gmbh	Indirect evidence	Nürnberg, GermanyHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Mit ihrem ganzheitlichen Ansatz innerhalb der Umweltbranche verfolgt die Rietzler Gruppe seit jeher eine auf Synergien und Interdisziplinarität beruhende Strategie.” Source: RevenueBase Database · checked Sep 19, 2026
12	Enviro-Plan	Indirect evidence	Odernheim Am Glan, GermanyHQ checked Sep 19, 2026	51-200	9 contacts →
	Indirect evidence “Enviro-Plan ist ein interdisziplinäres und unabhängiges Planungs- und Gutachterbüro mit den Schwerpunkten Stadtplanung, Landschaftsplanung, Objektplanung, Tierökologie /…” Source: RevenueBase Database · checked Sep 19, 2026
13	Flächenagentur Baden-Württemberg Gmbh	Indirect evidence	Ostfildern, GermanyHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Wir sind ein qualifizierter Dienstleister für die Umsetzung der naturschutzrechtlichen Eingriffsregelung und stehen Ihnen als landesweiter Vermittler von Ökopunkten…” Source: RevenueBase Database · checked Sep 19, 2026
14	KS Umweltgutachten Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
15	Brix Consult	Indirect evidence	Mannheim, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “BRIX Consult ist ein 2022 gegründetes Ingenieurbüro, das sich auf nachhaltiges Bauen und effizientes Baumanagement spezialisiert hat.” Source: RevenueBase Database · checked Sep 19, 2026
16	Base Technologies Gmbh	Indirect evidence	München, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Die BASE TECHNOLOGIES GmbH ist seit über 20 Jahren aktiv für Nachhaltigkeit und Transformation.” Source: RevenueBase Database · checked Sep 19, 2026
17	Mitigate	Indirect evidence	Munich, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Our innovative approach to environmental engineering, driven by remote sensing, bioacoustics, eDNA, and advanced geoinformatics, enhances how environmental challenges and…” Source: RevenueBase Database · checked Sep 19, 2026
18	Biota-Institut FÜR Ökologische Forschung UND Planung Gmbh	Indirect evidence	Bützow, GermanyHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
19	Gefaö Gesellschaft FÜR Angewandte Ökologie UND Umweltplanung	Indirect evidence	Wiesloch, GermanyHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Die Gesellschaft für angewandte Ökologie und Umweltplanung, GefaÖ GmbH, ist seit 1984 auf den Gebieten der Umwelt- und Landschaftsplanung tätig.” Source: RevenueBase Database · checked Sep 19, 2026
20	BFL	Indirect evidence	Rümmelsheim, GermanyHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Das BFL -Büro für Faunistik und Landschaftsökologie steht Ihnen als kompetenter und erfahrener Ansprechpartner bei allen Fragestellungen zum Arten- und Naturschutz zur Verfügung.” Source: RevenueBase Database · checked Sep 19, 2026
21	Woviro Umweltschutz UND Arbeitssysteme Beratungsgesellschaft MBH	Indirect evidence	Erfurt, GermanyHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “WOVIRO berät Sie umfassend und individuell zum Thema Immissionsschutz.” Source: RevenueBase Database · checked Sep 19, 2026
22	Bngf Gmbh	Indirect evidence	Pähl, GermanyHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Wir bieten unseren Kunden umfassende Beratungsleistungen und Lösungskompetenzen in den Bereichen Umweltgutachten, Umweltplanung, ökologische/naturschutzfachliche Objektplanung…” Source: RevenueBase Database · checked Sep 19, 2026
23	Envi Experts Gmbh	Indirect evidence	Nürnberg, GermanyHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Envi Experts ist eine Umweltunternehmensberatung, die sich darauf spezialisiert hat, interdisziplinäre Themen im Umweltsektor, v.a.” Source: RevenueBase Database · checked Sep 19, 2026
24	Arvensis Umweltplanung	Indirect evidence	Schönefeld, GermanyHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Wir sind ein junges Unternehmen im Bereich der Umweltplanung und sind spezialisiert auf den Bereich der Erneuerbaren Energien.” Source: RevenueBase Database · checked Sep 19, 2026
25	Ecotone	Partial evidence	Dortmund, GermanyHQ checked Sep 19, 2026	11-50	4 contacts →
	Partial evidence “Our services focus on species protection, landscape planning and ecological construction monitoring.” Source: RevenueBase Database · checked Sep 19, 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: ecological assessment firms. 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 ecological assessment firms.
Partial evidence: Its own public description names part of ecological assessment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ecological assessment firms. 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 122 ecological assessment firms based in Germany

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Ecological assessment firms based in Germany at a glance

As of Sep 19, 2026

35.8%Verified-email coverage

4.4Average contacts per company

1-10Median size (employees)

5.7%Largest-city concentration · Berlin

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 122 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 ecological assessment 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.
What qualifies: Companies headquartered in Germany whose own description of what they do matches “ecological assessment 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 ecological assessment 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 ecological assessment firms, and records with no verified work email. Companies headquartered outside Germany 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, 191 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 19, 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 ecological assessment 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 ecological assessment firms are there based in Germany?

RevenueBase identified 122 ecological assessment firms headquartered in Germany 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?

Bioconsult SH, headquartered in Husum, tops this list with the largest team on record.

Which city has the most ecological assessment firms?

Berlin leads with 7 headquartered companies, followed by Hamburg (4) and Koln (4).

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 191 verified decision-maker contacts tracked across these 122 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 19, 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.