Company lists · Data refreshed September 2026

Top 25 Ecological consulting firms based in Germany

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 392 companies tracked

RevenueBase identified 392 ecological consulting firms headquartered in Germany as of September 2026 and tracks 2,537 professional contacts across them, including 911 with verified work emails and 30 with mobile numbers. Berlin is the largest hub.

This list covers ecological consulting 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

392Companies

2,537Contacts tracked

911Verified emails

30Mobile numbers

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The 25 largest ecological consulting firms based in Germany

Ranked by team size

Top 25 of 392 ecological consulting firms based in Germany, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to ecological 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Björnsen Beratende Ingenieure	Indirect evidence	Koblenz, Germany	201-500	108 contacts →
	Indirect evidence “Wir sind Experten für Wasser, Umwelt, Ingenieurbau, Informatik, Energie und Architektur.” Source: RevenueBase Database · checked Sep 1, 2026
2	Mailänder Consult Gmbh	Indirect evidence	Karlsruhe, Germany	201-500	79 contacts →
	Indirect evidence “Unsere Stärken stecken in individuellen Konzepten und Planungen in den Bereichen Verkehr, Transport, Umwelt, Hochbau und Flächenmanagement.” Source: RevenueBase Database · checked Sep 1, 2026
3	Tauw Deutschland	Indirect evidence	Munchen, Germany	51-200	76 contacts →
	Indirect evidence “TAUW ist ein führendes europäisches Beratungs- und Ingenieurbüro für Umwelt, Planung und Nachhaltigkeit.” Source: RevenueBase Database · checked Sep 1, 2026
4	Baurconsult Architekten Ingenieure	Indirect evidence	Teltow, Germany	201-500	73 contacts →
	Indirect evidence “BAURCONSULT als inhabergeführtes Architektur- und Ingenieurbüro setzt seit mehr als 60 Jahren einen klaren Fokus auf Nachhaltigkeit und vereint zu diesem Zweck Spezialisten aus…” Source: RevenueBase Database · checked Sep 1, 2026
5	B.A.U.M. Consult Gmbh	Indirect evidence	Hamburg, Germany	51-200	70 contacts →
	Indirect evidence “B.A.U.M.” Source: RevenueBase Database · checked Sep 1, 2026
6	Intep Integrale Planung Gmbh	Indirect evidence	Berlin, Germany	51-200	65 contacts →
	Indirect evidence “Intep ist eine interdisziplinäre Beratungs- und Forschungsunternehmung für Umwelt, Wirtschaft und Gesellschaft.” Source: RevenueBase Database · checked Sep 1, 2026
7	TNL Umwelt	Indirect evidence	Hungen, Germany	51-200	64 contacts →
	Indirect evidence “Die TNL Umweltpanung ist als unabhängiges Netzwerk im Bereich Beratung und Umsetzung von Umweltfachplanungen bundesweit und im benachbarten Ausland tätig.” Source: RevenueBase Database · checked Sep 1, 2026
8	SCC Scientific Consulting Company, Part Of Ramboll	Indirect evidence	Bad Kreuznach, Germany	n/a	63 contacts →
	Indirect evidence “SCC is now part of Ramboll, a global architecture, engineering and consultancy company, creating sustainable solutions across energy, real estate, transport, water, waste…” Source: RevenueBase Database · checked Sep 1, 2026
9	Bioconsult SH	Partial evidence	Husum, Germany	51-200	46 contacts →
	Partial evidence “BioConsult SH ist ein Team von Naturwissenschaftlern, das seit 1998 als unabhängiges, ökologisches Forschungs- und Consultingbüro besteht.” Source: RevenueBase Database · checked Sep 1, 2026
10	GFN Gesellschaft FÜR Freilandökologie UND Naturschutzplanung MBH	Indirect evidence	Hamburg, Germany	201-500	27 contacts →
	Indirect evidence “Die GFN - Gesellschaft für Freilandökologie und Naturschutzplanung mbH - ist ein seit 1993 bestehendes Planungsbüro.” Source: RevenueBase Database · checked Sep 1, 2026
11	Klinger UND Partner Gmbh	Indirect evidence	Urbach, Germany	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 1, 2026
12	The Pauly Group	Partial evidence	Neu-Eichenberg, Germany	51-200	21 contacts →
	Partial evidence “THE PAULY GROUP consists of four closely interlinked, synergetically working business units and offers an impressive portfolio of services around the core competence of ecological…” Source: RevenueBase Database · checked Sep 1, 2026
13	Sustevo	Indirect evidence	Eschborn, Germany	11-50	21 contacts →
	Indirect evidence “Accelerating Sustainable Evolution – Join Us on Our Journey!” Source: RevenueBase Database · checked Sep 1, 2026
14	IBL Umweltplanung Gmbh	Indirect evidence	Oldenburg, Germany	51-200	21 contacts →
	Indirect evidence “Seit fast 40 Jahren ist die IBL Umweltplanung GmbH mit Sitz in Oldenburg als Planungsbüro im Bereich Natur und Umwelt für nationale und internationale Auftraggeber tätig.” Source: RevenueBase Database · checked Sep 1, 2026
15	Ingenieurgesellschaft Heidt Peters MBH	Indirect evidence	Hannover, Germany	51-200	19 contacts →
	Indirect evidence “Seit 60 Jahren sind wir als Beratende Ingenieure ein leistungsstarker Partner im Tiefbau.” Source: RevenueBase Database · checked Sep 1, 2026
16	Aqua Consult Ingenieur Gmbh	Indirect evidence	Hannover, Germany	51-200	19 contacts →
	Indirect evidence “Auf den Punkt perfekt: unsere Lösungen Seit gut 50 Jahren arbeiten wir als Experten für Wasserwirtschaft und Umwelttechnik.” Source: RevenueBase Database · checked Sep 1, 2026
17	AMPHI	Partial evidence	Neu Darchau, Germany	11-50	17 contacts →
	Partial evidence “Danish environmental consulting company since 2013, associated with Amphi Consult established in 1993.” Source: RevenueBase Database · checked Sep 1, 2026
18	Ergo Umweltinstitut Gmbh	Indirect evidence	Erfurt, Germany	51-200	15 contacts →
	Indirect evidence “Wir sind ein mittelständisches sächsisches Unternehmen im Bereich der Umweltdienstleistungen mit seinem Hauptsitz in Dresden.” Source: RevenueBase Database · checked Sep 1, 2026
19	CMC Sustainability Gmbh	Indirect evidence	Stuttgart, Germany	11-50	14 contacts →
	Indirect evidence “CMC Sustainability - Partner for Progress CMC ist Partner für Unternehmen und Kommunen, wenn es um individuelle und passgenaue Projekte rund um die Themen Nachhaltigkeit, Umwelt-…” Source: RevenueBase Database · checked Sep 1, 2026
20	Ifuplan	Indirect evidence	Munchen, Germany	11-50	14 contacts →
	Indirect evidence “Durch unsere Präzision, Sorgfalt und Arbeitsqualität genießen wir das Vertrauen von Umwelt- und Naturschutzverbänden, von Politik und öffentlicher Verwaltung und von Unternehmen…” Source: RevenueBase Database · checked Sep 1, 2026
21	Joswig Ingenieure Gmbh	Indirect evidence	Karlsruhe, Germany	11-50	14 contacts →
	Indirect evidence “Wir beraten bei Umwelt- und Wasserprojekten.” Source: RevenueBase Database · checked Sep 1, 2026
22	Höppner Management & Consultant Gmbh	Indirect evidence	Hannover, Germany	11-50	14 contacts →
	Indirect evidence “Die Höppner Management & Consultant GmbH ist eine unabhängige Unternehmensberatung für Arbeitssicherheit, Umweltschutz und Managementsysteme.” Source: RevenueBase Database · checked Sep 1, 2026
23	ARU	Indirect evidence	Germany	11-50	14 contacts →
	Indirect evidence “Über uns Wir, die ARU mit Sitz in Lingen und Steinfurt, begleiten, beraten und prüfen Unternehmen und Anlagen aus Industrie, Gewerbe, Produktion und Landwirtschaft.” Source: RevenueBase Database · checked Sep 1, 2026
24	Lcee Life Cycle Engineering Experts Gmbh	Indirect evidence	Darmstadt, Germany	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 1, 2026
25	Prof. Burmeier Ingenieurgesellschaft MBH	Indirect evidence	Recklinghausen, Germany	51-200	12 contacts →
	Indirect evidence “Prof.” Source: RevenueBase Database · checked Sep 1, 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 consulting 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 consulting firms.
Partial evidence: Its own public description names part of ecological consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ecological consulting 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 392 ecological consulting firms based in Germany

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Ecological consulting firms based in Germany at a glance

As of Sep 1, 2026

35.9%Verified-email coverage

1.2%Mobile-number coverage

6.5Average contacts per company

1-10Median size (employees)

7.7%Largest-city concentration · Berlin

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

201

11-50

130

51-200

201-500

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 ecological 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.
What qualifies: Companies headquartered in Germany whose own description of what they do matches “ecological 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 ecological 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 ecological consulting 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, 911 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 1, 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.

Ecological consulting firms by metro

Ecological consulting firms in Berlin30

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 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 ecological consulting firms are there based in Germany?

RevenueBase identified 392 ecological consulting 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?

Björnsen Beratende Ingenieure, headquartered in Koblenz, tops this list with the largest team on record.

Which city has the most ecological consulting firms?

Berlin leads with 30 headquartered companies, followed by Hamburg (22) and Stuttgart (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 911 verified decision-maker contacts tracked across these 392 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 1, 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.