Company lists · Data refreshed November 2026

Top 24 Sustainability consultancies based in Germany

Name: Sustainability consultancies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 2,211 companies tracked

RevenueBase identified 2,211 company matches for sustainability consultancies associated with Germany as of November 2026 and tracks 25,443 professional contacts across them, including 10,303 with verified work emails. Berlin is the largest hub.

This list covers company matches for sustainability consultancies associated with Germany, 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 5, 2026.

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 5, 2026 How this list was built

2,211Companies

25,443Contacts tracked

10,303Verified emails

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The 24 largest sustainability consultancies based in Germany

Ranked by team size

Top 24 of 2,211 company matches for sustainability consultancies based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Roland Berger	Exact match	Munich, GermanyHQ recorded Nov 5, 2026	1,001-5,000	5,034 contacts →
	Exact match “Roland Berger is the only leading global strategy consultancy of European origin.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Fichtner	Exact match	Stuttgart, GermanyHQ recorded Nov 5, 2026	1,001-5,000	1,396 contacts →
	Exact match “As a leading, independent engineering and consultancy enterprise active in the sectors of energy and infrastructure, Fichtner handles challenging projects in countries all over…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Inverto A BCG Company	Exact match	Cologne, GermanyHQ recorded Nov 5, 2026	501-1,000	853 contacts →
	Exact match “Inverto is a leading global consultancy specializing in strategic procurement and supply chain management.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Climatepartner	Exact match	Munich, GermanyHQ recorded Nov 5, 2026	501-1,000	346 contacts →
	Exact match “ClimatePartner makes climate action valuable for every company at any stage of their journey.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Zetcon Ingenieure Gmbh	Exact match	Bochum, GermanyHQ recorded Nov 5, 2026	501-1,000	314 contacts →
	Exact match “Von Planung bis Bauüberwachung in großen Infrastruktur-Projekten, von Architektur bis Erneuerbare Energien-ZETCON Ingenieure sind ganz vorne mit dabei in den Bereichen Energie…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	H&z Management Consulting	Exact match	Munich, GermanyHQ recorded Nov 5, 2026	501-1,000	283 contacts →
	Exact match “Welcome to H&Z We offer more than successful strategy development.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	REBUY	Exact match	Berlin, GermanyHQ recorded Nov 5, 2026	501-1,000	263 contacts →
	Exact match “Our mission is to make sustainability accessible to all, one transaction at a time.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Dorsch Impact Gmbh	Exact match	Essen, GermanyHQ recorded Nov 5, 2026	51-200	260 contacts →
	Exact match “Dorsch Impact GmbH is an independent and reliable consulting partner for international development cooperation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Adelphi	Exact match	Berlin, GermanyHQ recorded Nov 5, 2026	201-500	255 contacts →
	Exact match “adelphi consult is a leading independent consultancy specialising in climate, environment and development.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	German Institute Of Development And Sustainability Idos	Exact match	Bonn, GermanyHQ recorded Nov 5, 2026	51-200	250 contacts →
	Exact match “The German Institute of Development and Sustainability (IDOS) is a renowned research institute and influential think tank for global sustainable development.\| Netiquette…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Gopa Infra	Exact match	Bad Homburg, GermanyHQ recorded Nov 5, 2026	51-200	182 contacts →
	Exact match “GOPA Infra GmbH is an independent international consultancy rendering engineering and consulting services for infrastructure development worldwide on behalf of bilateral &…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Westbridge Advisory	Exact match	Frankfurt, GermanyHQ recorded Nov 5, 2026	201-500	180 contacts →
	Exact match “Gebäude müssen heute mehr leisten als je zuvor: effizienter werden, Ressourcen schonen und gleichzeitig wirtschaftlich betrieben werden.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	ZWP Ingenieur-Ag	Exact match	Cologne, GermanyHQ recorded Nov 5, 2026	201-500	180 contacts →
	Exact match “We have a passion for innovative and sustainable concepts.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	IPC	Exact match	Frankfurt, GermanyHQ recorded Nov 5, 2026	51-200	142 contacts →
	Exact match “Founded in 1980, IPC builds on a tremendous track record of successfully implemented projects and strong partnerships around the world with development and donor organizations as…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Oeko-Institut	Exact match	Freiburg, GermanyHQ recorded Nov 5, 2026	51-200	131 contacts →
	Exact match “The Oeko-Institut is one of Europe’s leading independent research and consultancy organisations working for a sustainable future.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	BET Consulting Gmbh	Exact match	Aachen, GermanyHQ recorded Nov 5, 2026	51-200	117 contacts →
	Exact match “As pioneers and experts, BET shapes the energy landscape of tomorrow.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Unique Land USE Gmbh	Exact match	Freiburg, GermanyHQ recorded Nov 5, 2026	51-200	113 contacts →
	Exact match “Unique is a leading consulting firm for sustainable forestry and agriculture, rural development and natural resource management.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	PKF Wulf Gruppe	Exact match	Stuttgart, GermanyHQ recorded Nov 5, 2026	201-500	112 contacts →
	Exact match “Die PKF Wulf Gruppe ist eine der führenden mittelständischen Prüfungs- und Beratungsgesellschaften.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Integration Consulting Group	Exact match	Frankfurt/ Main, GermanyHQ recorded Nov 5, 2026	11-50	108 contacts →
	Exact match “INTEGRATION is a consulting organization specialising in project management, with focus on developing countries and emerging markets.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Björnsen Beratende Ingenieure	Exact match	Koblenz, GermanyHQ recorded Nov 5, 2026	201-500	107 contacts →
	Exact match “Wir sind Experten für Wasser, Umwelt, Ingenieurbau, Informatik, Energie und Architektur.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Mailänder Consult Gmbh	Exact match	Karlsruhe, GermanyHQ recorded Nov 5, 2026	201-500	97 contacts →
	Exact match “Unsere Stärken stecken in individuellen Konzepten und Planungen in den Bereichen Verkehr, Transport, Umwelt, Hochbau und Flächenmanagement.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	ECO Consult Gmbh & Co. KG	Exact match	Oberaula, GermanyHQ recorded Nov 5, 2026	51-200	90 contacts →
	Exact match “ECO was founded by Dr.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	TA Europe	Exact match	Essen, GermanyHQ recorded Nov 5, 2026	51-200	87 contacts →
	Exact match “TA Europe is an international independent partnership acting as a boutique consultancy in real estate and infrastructure.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Dfge Institute For Energy, Ecology And Economy	Exact match	Greifenberg, GermanyHQ recorded Nov 5, 2026	11-50	86 contacts →
	Exact match “Seit unterstützt die DFGE Unternehmen dabei, Nachhaltigkeit messbar und strategisch nutzbar zu machen.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “sustainability consultancies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 24 of 2,211 sustainability consultancies based in Germany

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Sustainability consultancies based in Germany at a glance

As of Nov 5, 2026

40.5%Verified-email coverage

11.5Average contacts per company

1-10Median size (employees)

13.5%Largest-city concentration · Berlin

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

1,479

11-50

531

51-200

107

201-500

501-1,000

1,001-5,000

10001+

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 2,211 companies.

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.
What qualifies: Company records associated with Germany whose business descriptions match “sustainability consultancies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 10,303 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 5, 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.

Sustainability consultancies by metro

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 “sustainability consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainability consultancies are there based in Germany?

RevenueBase identified 2,211 company matches for sustainability consultancies associated with Germany 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?

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

Which city has the most sustainability consultancies?

Berlin leads with 298 company records, followed by Hamburg (181) and Munich (160).

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 10,303 professional contacts with verified work emails tracked across these 2,211 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 5, 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.