Company lists · Data refreshed September 2026

Top 25 Environmental consultancy firms based in Germany

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 828 companies tracked

RevenueBase identified 828 environmental consultancy firms headquartered in Germany as of September 2026 and tracks 9,476 professional contacts across them, including 3,202 with verified work emails and 131 with mobile numbers. Berlin is the largest hub.

This list covers environmental consultancy 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 2, 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 2, 2026 86% judged on-target in blind review

828Companies

9,476Contacts tracked

3,202Verified emails

131Mobile numbers

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The 25 largest environmental consultancy firms based in Germany

Ranked by team size

Top 25 of 828 environmental consultancy firms based in Germany, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to environmental consultancy 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	Fichtner	Partial evidence	Stuttgart, Germany	1,001-5,000	1,281 contacts →
	Partial evidence “As a leading, independent engineering and consultancy enterprise active in the sectors of energy and infrastructure, Fichtner handles challenging projects in countries all over…” Source: RevenueBase Database · checked Sep 2, 2026
2	Grontmij Group	Indirect evidence	Bremen, Germany	10001+	875 contacts →
	Indirect evidence “Grontmij is part of Sweco.” Source: RevenueBase Database · checked Sep 2, 2026
3	CSD Engineers	Partial evidence	Berlin, Germany	1,001-5,000	654 contacts →
	Partial evidence “CSD is one of the leading engineering consultancy enterprises in Switzerland.” Source: RevenueBase Database · checked Sep 2, 2026
4	GKW Consult	Indirect evidence	Mannheim, Germany	201-500	288 contacts →
	Indirect evidence “GKW Consult GmbH, a company of GFA Group, has developed and implemented projects and advisory services for public and private clients for 70 years in more than 50 countries…” Source: RevenueBase Database · checked Sep 2, 2026
5	Adelphi	Strong evidence	Berlin, Germany	201-500	270 contacts →
	Strong evidence “adelphi consult is a leading independent consultancy specialising in climate, environment and development.” Source: RevenueBase Database · checked Sep 2, 2026
6	HPC AG	Partial evidence	Harburg Schwaben, Germany	501-1,000	257 contacts →
	Partial evidence “HPC has been working for people and their environment since 1948: we are specialist planners and experts in soil and groundwater, mineral and drinking water, building ground and…” Source: RevenueBase Database · checked Sep 2, 2026
7	Lindschulte	Indirect evidence	Oldenburg, Germany	501-1,000	173 contacts →
	Indirect evidence “Lindschulte ist ein Unternehmen des BKW Engineering - Network of Excellence® – dem größten Engineering Netzwerk im deutschsprachigen Raum.” Source: RevenueBase Database · checked Sep 2, 2026
8	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 2, 2026
9	ECO Consult Gmbh & Co. KG	Indirect evidence	Oberaula, Germany	51-200	88 contacts →
	Indirect evidence “ECO was founded by Dr.” Source: RevenueBase Database · checked Sep 2, 2026
10	Mull UND Partner Ingenieurgesellschaft MBH	Indirect evidence	Hamburg, Germany	201-500	83 contacts →
	Indirect evidence “Mit unseren zahlreichen Standorten und Niederlassungen bundesweit bieten wir unseren Kunden alle Leistungen von der Flächenerkundung über Planung und Überwachung von…” Source: RevenueBase Database · checked Sep 2, 2026
11	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 2, 2026
12	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 2, 2026
13	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 2, 2026
14	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 2, 2026
15	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 2, 2026
16	SCC Scientific Consulting Company, Part Of Ramboll	Partial evidence	Bad Kreuznach, Germany	n/a	63 contacts →
	Partial 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 2, 2026
17	Sehlhoff Gmbh	Indirect evidence	Vilsbiburg, Germany	201-500	62 contacts →
	Indirect evidence “1966 als Planungs- und Beratungsgesellschaft für Ingenieur- und Architekturleistungen im Bauwesen gegründet, entwickelte sich die SEHLHOFF GMBH, INGENIEURE + ARCHITEKTEN zu einem…” Source: RevenueBase Database · checked Sep 2, 2026
18	Response	Partial evidence	Berlin, Germany	51-200	51 contacts →
	Partial evidence “response is a multiple award-winning, international consultancy specializing in sustainability, ESG and regenerative business.” Source: RevenueBase Database · checked Sep 2, 2026
19	Lindschulte Baden-Baden	Indirect evidence	Germany	51-200	49 contacts →
	Indirect evidence “WALD + CORBE hat sich zu einem namhaften Ingenieurbüro mit mehreren Standorten in den Bereichen Wasserwirtschaft, Wasserbau, Infrastruktur und Ökologie + Umwelt entwickelt.” Source: RevenueBase Database · checked Sep 2, 2026
20	Geo-Net Umweltconsulting Gmbh	Partial evidence	Hannover, Germany	51-200	47 contacts →
	Partial evidence “GEO-NET is an interdisciplinary and technology-oriented company concentrating on Renewable Energies, Environmental Meteorology and Environmental Planning.” Source: RevenueBase Database · checked Sep 2, 2026
21	Bioconsult SH	Indirect evidence	Husum, Germany	51-200	46 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 2, 2026
22	NPS Bauprojektmanagement Gmbh	Indirect evidence	Ulm, Germany	51-200	46 contacts →
	Indirect evidence “nps ist ein unabhängiges, inhabergeführtes Ingenieurbüro mit den Schwerpunkten Projektmanagement, Projektentwicklung, Nachhaltigkeit und Infrastrukturmanagement.” Source: RevenueBase Database · checked Sep 2, 2026
23	Futurecamp Climate Gmbh	Indirect evidence	Munchen, Germany	51-200	45 contacts →
	Indirect evidence “Nachhaltige Transformation für eine zukunftsfähige Wirtschaft Als spezialisierte Unternehmensberatung für Emissionshandel, CBAM, Treibhausgasbilanzierung, Energieeffizienz sowie…” Source: RevenueBase Database · checked Sep 2, 2026
24	M&p Group	Indirect evidence	Bad Wiessee, Germany	501-1,000	44 contacts →
	Indirect evidence “Die M&P Group ist eine deutsche Ingenieurgesellschaft und ist führend im Bereich für Nachhaltigkeit.” Source: RevenueBase Database · checked Sep 2, 2026
25	IGB Ingenieurgesellschaften	Indirect evidence	Kiel, Germany	51-200	38 contacts →
	Indirect evidence “Wir sind IGB!” Source: RevenueBase Database · checked Sep 2, 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: environmental consultancy 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 environmental consultancy firms.
Partial evidence: Its own public description names part of environmental consultancy firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental consultancy 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 828 environmental consultancy firms based in Germany

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Environmental consultancy firms based in Germany at a glance

As of Sep 2, 2026

33.8%Verified-email coverage

1.4%Mobile-number coverage

11.4Average contacts per company

1-10Median size (employees)

8.3%Largest-city concentration · Berlin

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

422

11-50

263

51-200

201-500

501-1,000

1,001-5,000

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 environmental consultancy 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 “environmental consultancy 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 environmental consultancy 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 environmental consultancy 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, 3,202 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 2, 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.

Environmental consultancy firms by metro

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 environmental consultancy 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 environmental consultancy firms are there based in Germany?

RevenueBase identified 828 environmental consultancy 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?

Fichtner, headquartered in Stuttgart, tops this list with the largest team on record.

Which city has the most environmental consultancy firms?

Berlin leads with 69 headquartered companies, followed by Hamburg (30) and Munchen (18).

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 3,202 verified decision-maker contacts tracked across these 828 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 2, 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.