Company lists · Data refreshed November 2026

Top 25 Sustainable technology companies based in Germany

RevenueBase identified 156 company matches for sustainable technology companies associated with Germany as of November 2026 and tracks 2,307 professional contacts across them, including 867 with verified work emails. Berlin is the largest hub.

This list covers company matches for sustainable technology companies 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
156Companies
2,307Contacts tracked
867Verified emails
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The 25 largest sustainable technology companies based in Germany

Ranked by team size
Top 25 of 156 company matches for sustainable technology companies 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, 2026501-1,000346 contacts →

Exact match

“ClimatePartner makes climate action valuable for every company at any stage of their journey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMunich, GermanyHQ recorded Nov 6, 20261,001-5,000323 contacts →

Exact match

“At BayWa r.e.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBad Vilbel, GermanyHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“With 25 years of experience, First Climate is a leading global provider of carbon management and green energy services for hundreds of corporate and public sector clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDuderstadt, GermanyHQ recorded Nov 6, 20261,001-5,00061 contacts →

Exact match

“Als Unternehmensgruppe Daume sind wir Vorreiter in fortschrittlicher Versorgungstechnik, die einen nachhaltigen und verantwortungsvollen Umgang mit Umwelt, Klima und Energie…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchHusum, GermanyHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Herzlich Willkommen bei der ane.energy!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact matchCologne, GermanyHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“With Planted, we support companies holistically and individually in the implementation of their sustainability goals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Die Berliner Energieagentur GmbH (BEA) ist ein modernes Energiedienstleistungsunternehmen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBottrop, GermanyHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“GREENZERO unterstützt Unternehmen und Städte bei der nachhaltigen Transformation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchFreiburg, GermanyHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“We are Enit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchRosenheim, GermanyHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“We have set ourselves the goal of enabling people to live a life free from negative environmental impacts and in harmony with nature, without having to forego the convenience of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMunich, GermanyHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Turning Data into Value – Aus CO₂-Daten wird unternehmerischer Mehrwert GLOBAL CLIMATE ist Softwareanbieter und Nachhaltigkeitsberatung in einem.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMeldorf, GermanyHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“We are CarbonFreed.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Harbauer Environmental Technology develops and builds innovative technologies for the protection of the environment and for the remediation of existing damage to ecosystems, in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“eclareon is a consulting firm working internationally to support public and private institutions engaged in the fields of renewable energy, energy efficiency, climate policies and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchStuttgart, GermanyHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“OPTENDA steht für OPTimize ENergy by DAta.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHamburg, GermanyHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“CBR Sustainability Partners is a pioneering consultancy dedicated to advancing green transition through technological innovation and sustainable practices across various…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchOffenburg, GermanyHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“En-Concept Energy Consultancy GmbH – Ihr Partner für nachhaltiges Energiemanagement Die En-Concept Energy Consultancy GmbH unterstützt Unternehmen aller Branchen und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHanover, GermanyHQ recorded Nov 6, 2026501-1,00015 contacts →

Exact match

“Die GETEC GRUPPE ist ein Verbund von Energiedienstleistungsunternehmen sowie deutschland- und europaweiten Beteiligungen und Aktivitäten in den Bereichen Innovative Technologien…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMarkt Erlbach, GermanyHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Wust - Wind & Sonne GmbH & Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHeidelberg, GermanyHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Natural Resource Innovations, NRI, is a leading provider of environmental technology and management services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchRegensburg, GermanyHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Willkommen bei Luxgreen Climadesign!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Groundbreaking knowledge for the new energy world The story of the Berliner Solarpraxis began in 1992.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNuremberg, GermanyHQ recorded Nov 6, 202611-5011 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 156 sustainable technology companies based in Germany

See the full list, filter by size, metro and specialty, and access 867 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainable technology companies based in Germany at a glance

As of Nov 6, 2026
37.6%Verified-email coverage
14.8Average contacts per company
11-50Median size (employees)
9.6%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
73
11-50
55
51-200
12
201-500
1
501-1,000
4
1,001-5,000
2
5,001-10,000
1
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 156 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 “sustainable technology companies” 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 867 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 “sustainable technology companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainable technology companies are there based in Germany?

RevenueBase identified 156 company matches for sustainable technology companies 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?

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

Which city has the most sustainable technology companies?

Berlin leads with 15 company records, followed by Munich (6) and Dusseldorf (5).

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 867 professional contacts with verified work emails tracked across these 156 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.