Company lists · Data refreshed November 2026

Top 25 Sustainability firms based in Germany

RevenueBase identified 1,180 company matches for sustainability firms associated with Germany as of November 2026 and tracks 13,055 professional contacts across them, including 5,205 with verified work emails. Berlin is the largest hub.

This list covers company matches for sustainability firms 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 6, 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 6, 2026 How this list was built
1,180Companies
13,055Contacts tracked
5,205Verified emails
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The 25 largest sustainability firms based in Germany

Ranked by team size
Top 25 of 1,180 company matches for sustainability firms based in Germany, 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 matchMunich, GermanyHQ recorded Nov 6, 20261,001-5,0005,034 contacts →

Exact match

“Roland Berger is the only leading global strategy consultancy of European origin.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMunich, GermanyHQ recorded Nov 6, 2026501-1,000283 contacts →

Exact match

“Welcome to H&Z We offer more than successful strategy development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBerlin, GermanyHQ recorded Nov 6, 2026501-1,000263 contacts →

Exact match

“Our mission is to make sustainability accessible to all, one transaction at a time.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBerlin, GermanyHQ recorded Nov 6, 2026201-500255 contacts →

Exact match

“adelphi consult is a leading independent consultancy specialising in climate, environment and development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchFrankfurt, GermanyHQ recorded Nov 6, 2026201-500180 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 6, 2026 · View company records in RevenueBase
6Exact matchGreifenberg, GermanyHQ recorded Nov 6, 202611-5086 contacts →

Exact match

“Seit unterstützt die DFGE Unternehmen dabei, Nachhaltigkeit messbar und strategisch nutzbar zu machen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHaßfurt, GermanyHQ recorded Nov 6, 2026201-50074 contacts →

Exact match

“BAURCONSULT als inhabergeführtes Architektur- und Ingenieurbüro setzt seit mehr als 60 Jahren einen klaren Fokus auf Nachhaltigkeit und vereint zu diesem Zweck Spezialisten aus…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMoers, GermanyHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“TAUW ist ein führendes europäisches Beratungs- und Ingenieurbüro für Umwelt, Planung und Nachhaltigkeit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“The Institute for Ecological Economy Research (IÖW) is a leading scientific institute in the field of practice-oriented sustainability research.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“B.A.U.M.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHamburg, GermanyHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“We are 89 people who rock digitalization and sustainability together.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMunich, GermanyHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“VERSO ist Sustainability-Software-Pionier und Full-Service-Anbieter für die Nachhaltige Transformation im Mittelstand.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHamburg, GermanyHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“Savings United is a global team connected by a vision for the future of work and commerce.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHürth, GermanyHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Die Dienstleistungen der envistra GmbH zielen auf eine schnelle und langfristige Kostenreduktion und leisten einen wesentlichen Beitrag zu einer nachhaltigen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMannheim, GermanyHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“Das BFE Institut für Energie und Umwelt GmbH ist ein Unternehmen der MVV Energie AG und zählt mit über Projekten und ca.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMunich, GermanyHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“Arqum stands for work safety, quality and environmental management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchErbach, GermanyHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“koziol develops and manufactures products that bring great design into everyday life.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBad Kreuznach, GermanyHQ recorded Nov 6, 2026n/a52 contacts →

Exact match

“SCC is now part of Ramboll, a global architecture, engineering and consultancy company, creating sustainable solutions across energy, real estate, transport, water, waste…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDuesseldorf, GermanyHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“ingenhoven associates is an international architecture studio with offices in Düsseldorf and Singapore, known for pioneering sustainable design since 1985.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Since its founding 20 years ago, ÖKOTEC stands for intelligent solutions for the reduction of energy and resource consumption.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLeinfelden-Echterdingen, GermanyHQ recorded Nov 6, 2026201-50050 contacts →

Exact match

“thinkstep enables organizations worldwide to succeed sustainably.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCologne, GermanyHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“Why Meo Carbon Solutions?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHamburg, GermanyHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“As a management consultancy we have been tackling global challenges in environmental and human rights issues for over 20 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMunich, GermanyHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“Nachhaltige Transformation für eine zukunftsfähige Wirtschaft Als spezialisierte Unternehmensberatung für Emissionshandel, CBAM, Treibhausgasbilanzierung, Energieeffizienz sowie…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchFrankfurt, GermanyHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“response is a multiple award-winning, international consultancy specializing in sustainability, ESG, and regenerative business.”

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

Showing 25 of 1,180 sustainability firms based in Germany

See the full list, filter by size, metro and specialty, and access 5,205 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainability firms based in Germany at a glance

As of Nov 6, 2026
39.9%Verified-email coverage
11.1Average contacts per company
1-10Median size (employees)
14.1%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
822
11-50
267
51-200
50
201-500
9
501-1,000
4
1,001-5,000
2
10001+
1

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 1,180 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 firms” 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 5,205 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.

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

How many sustainability firms are there based in Germany?

RevenueBase identified 1,180 company matches for sustainability firms 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 firms?

Berlin leads with 166 company records, followed by Munich (105) and Hamburg (100).

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 5,205 professional contacts with verified work emails tracked across these 1,180 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.