Company lists · Data refreshed September 2026

Top 25 Building decarbonization companies based in Germany

RevenueBase identified 1,489 building decarbonization companies headquartered in Germany as of September 2026 and tracks 15,471 professional contacts across them, including 6,355 with verified work emails. Berlin is the largest hub.

This list covers building decarbonization companies 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 16, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
1,489Companies
15,471Contacts tracked
6,355Verified emails
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The 25 largest building decarbonization companies based in Germany

Ranked by team size
Top 25 of 1,489 building decarbonization companies based in Germany, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building decarbonization companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceStuttgart, GermanyHQ checked Sep 16, 20265,001-10,0003,475 contacts →

Indirect evidence

“Uniting opposites to create a world we want to live in Drees & Sommer is a partner-managed, global consulting company providing a single source of consultation and implementation…”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceEssen, GermanyHQ checked Sep 16, 20265,001-10,0001,406 contacts →

Indirect evidence

“Wir geben Häusern eine Zukunft.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceEschborn, GermanyHQ checked Sep 16, 20261,001-5,0001,021 contacts →

Indirect evidence

“Techem is a leading global energy service provider for the real estate sector and private homeowners.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceBerlin, GermanyHQ checked Sep 16, 20261,001-5,000580 contacts →

Partial evidence

“Our DNA are sustainable buildings As a Smart Building Solutioneer, we combine intelligent building technologies, data-based services, sustainable excellence and multiple synergy…”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceKöln, GermanyHQ checked Sep 16, 2026201-500169 contacts →

Indirect evidence

“We have a passion for innovative and sustainable concepts.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceMünster, GermanyHQ checked Sep 16, 2026201-500152 contacts →

Indirect evidence

“Wir erschaffen Zukunft – mit erneuerbaren Energien und innovativen Lösungen!”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceFrankfurt, GermanyHQ checked Sep 16, 202651-200147 contacts →

Indirect evidence

“Wir sind ein führender europäischer Energie- und Nachhaltigkeitsberater in der Immobilienwirtschaft.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceBad Berleburg, GermanyHQ checked Sep 16, 2026501-1,000128 contacts →

Indirect evidence

“1967 gegründet, sind wir heute nicht nur eines der führenden deutschen Unternehmen im gebäudetechnischen Anlagenbau, sondern vor allem auch überzeugte Klimaschützer.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceBerlin, GermanyHQ checked Sep 16, 202651-200125 contacts →

Indirect evidence

“ecoworks is the trusted partner for the housing sector when it comes to affordable, energy-efficient renovations.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceHamburg, GermanyHQ checked Sep 16, 2026201-500121 contacts →

Indirect evidence

“FRANK bietet ganzheitliche Dienstleistungen im Bereich ökologisch und sozial nachhaltiger Wohn- und Gewerbeimmobilien.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceEresing, GermanyHQ checked Sep 16, 202651-200113 contacts →

Indirect evidence

“As spin-off from the TU Munich, we're a highly tech-driven climate startup paving the way to 100% renewable, decarbonized future by making the most of biogas.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceKöln, GermanyHQ checked Sep 16, 202651-200101 contacts →

Indirect evidence

“BMP, gegründet 1996, ist ein unabhängiger Dienstleister im Bereich Projektentwicklung, Projektmanagement und Baumanagement mit Hauptsitz in Köln sowie Niederlassungen in Berlin…”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceKarlsruhe, GermanyHQ checked Sep 16, 2026201-50093 contacts →

Indirect evidence

“Gebäude.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceMannheim, GermanyHQ checked Sep 16, 2026201-50092 contacts →

Indirect evidence

“MVV Enamic bietet als B2B-Lösungseinheit der MVV Energie AG Geschäftskunden ganzheitliche Energielösungen aus einer Hand.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceKöln, GermanyHQ checked Sep 16, 202651-20087 contacts →

Indirect evidence

“Your partner for the energy transition in the real estate industry Since 2017, einhundert Energie GmbH has been supporting real estate companies in electrifying and decarbonizing…”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceMetropolregion Berlin/brandenburg, GermanyHQ checked Sep 16, 202651-20081 contacts →

Indirect evidence

“Wir wollen, dass so viele Immobilien wie möglich energieeffizient saniert werden.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceDresden, GermanyHQ checked Sep 16, 202651-20080 contacts →

Indirect evidence

“ENLOC – Energiedienstleister der Wohnungswirtschaft Die Enloc bietet innovative Lösungen unter Einbeziehung erneuerbarer Energien im Rahmen der Wärmelieferung/Contracting.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceBad Vilbel, GermanyHQ checked Sep 16, 202651-20079 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceGeisenhausen, GermanyHQ checked Sep 16, 2026201-50076 contacts →

Indirect evidence

“Our roots are Bavarian.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceKöln, GermanyHQ checked Sep 16, 202651-20073 contacts →

Indirect evidence

“Wir bringen grüne Infrastruktur in Ihre Gebäude!”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceGriesheim, GermanyHQ checked Sep 16, 2026201-50066 contacts →

Indirect evidence

“SWJ - Experten für innovative Lösungen Die Erbringung von Consulting, Ingenieur und Architekturdienstleistungen aller Art im Industrie- und Privatsektor und der öffentlichen Hand…”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceStuttgart, GermanyHQ checked Sep 16, 202651-20064 contacts →

Indirect evidence

“High Comfort – Low Impact Transsolar KlimaEngineering ist ein international tätiges Ingenieurbüro.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceBoblingen, GermanyHQ checked Sep 16, 202651-20061 contacts →

Indirect evidence

“FACT.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceBamberg, GermanyHQ checked Sep 16, 202651-20058 contacts →

Indirect evidence

“Die Alpha IC ist ein inhabergeführtes Consultingbüro für das Real Estate Management.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceNorderstedt, GermanyHQ checked Sep 16, 202651-20058 contacts →

Indirect evidence

“Assmann Emutec ist ein Unternehmen des BKW Engineering - Network of Excellence® – dem größten Engineering Netzwerk im deutschsprachigen Raum.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 1,489 building decarbonization companies based in Germany

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Building decarbonization companies based in Germany at a glance

As of Sep 16, 2026
41.1%Verified-email coverage
10.4Average contacts per company
1-10Median size (employees)
7.6%Largest-city concentration · Berlin
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
911
11-50
404
51-200
98
201-500
16
501-1,000
5
1,001-5,000
6
5,001-10,000
3
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 1,489 companies.

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 building decarbonization companies, 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 “building decarbonization companies”. 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 building decarbonization companies), 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 building decarbonization companies, 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, 6,355 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 16, 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.

Building decarbonization companies 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 building decarbonization companies, 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 building decarbonization companies are there based in Germany?

RevenueBase identified 1,489 building decarbonization companies 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?

Drees & Sommer, headquartered in Stuttgart, tops this list with the largest team on record.

Which city has the most building decarbonization companies?

Berlin leads with 113 headquartered companies, followed by Hamburg (63) and Munchen (40).

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 6,355 verified decision-maker contacts tracked across these 1,489 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 16, 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.