Company lists · Data refreshed October 2026

Top 25 Energy efficient home retrofit companies based in Germany

RevenueBase identified 175 company matches for energy efficient home retrofit companies associated with Germany as of October 2026 and tracks 840 professional contacts across them, including 306 with verified work emails. Berlin is the largest hub.

This list covers company matches for energy efficient home retrofit 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 October 12, 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 Oct 12, 2026 How this list was built
175Companies
840Contacts tracked
306Verified emails
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The 25 largest energy efficient home retrofit companies based in Germany

Ranked by team size
Top 25 of 175 company matches for energy efficient home retrofit companies based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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 Oct 12, 202651-200146 contacts →

Exact match

“At tado° we believe that unnecessarily wasting energy should be a thing of the past.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2Exact matchBerlin, GermanyHQ recorded Oct 12, 202651-200119 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3Exact matchDresden, GermanyHQ recorded Oct 12, 202651-20079 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4Exact matchBerlin, GermanyHQ recorded Oct 12, 202651-20037 contacts →

Exact match

“End-to-end solution for energy retrofits and long-term ESG management.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5Exact matchHamburg, GermanyHQ recorded Oct 12, 202611-5020 contacts →

Exact match

“CALOR ENERGY is a Germany-wide partner for integrated and economically viable energy solutions across residential real estate, commercial properties, and private investment…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6Exact matchBerlin, GermanyHQ recorded Oct 12, 202611-5018 contacts →

Exact match

“We revolutionize energy-efficient window renovation through digitization and transparency”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7Exact matchTraunstein, GermanyHQ recorded Oct 12, 202611-5014 contacts →

Exact match

“Energy Partners offers a 360-degree service for the implementation of integrated rooftop energy projects for companies and organizations in the industrial and commercial sectors.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8Exact matchWillich, GermanyHQ recorded Oct 12, 202611-5013 contacts →

Exact match

“Die Herausforderung unserer Generation ist der Klimawandel, eine Mammutaufgabe.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9Exact matchFrankfurt, GermanyHQ recorded Oct 12, 202611-5012 contacts →

Exact match

“comfort.energy.service.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10Exact matchBerlin, GermanyHQ recorded Oct 12, 202651-20012 contacts →

Exact match

“Die Ever Energy Group GmbH wurde 2007 von den Geschäftsführern Matthias Streibel (li.) und Dominik Modrach (re.) gegründet.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11Exact matchWeissach, GermanyHQ recorded Oct 12, 202611-5011 contacts →

Exact match

“revotec energy ist ein führender Anbieter von Solaranlagen in Baden-Württemberg installiert auf Industrie- und Gewerbeimmobilien sowie Gebäuden von Kommunen und Vereinen.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12Exact matchMunich, GermanyHQ recorded Oct 12, 20261-107 contacts →

Exact match

“Wir machen die Energiewende smart!”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13Exact matchSaarbrücken, GermanyHQ recorded Oct 12, 20261-107 contacts →

Exact match

“Effinigo entwickelt und realisiert minimalinvasive Retrofit-Lösungen zur energetischen Optimierung gewerblicher und öffentlicher Bestandsgebäude.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14Exact matchBerlin, GermanyHQ recorded Oct 12, 202611-506 contacts →

Exact match

“Sie möchten Ihre Immobilie umfassend sanieren?”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15Exact matchBerlin, GermanyHQ recorded Oct 12, 20261-106 contacts →

Exact match

“Wir gestalten die energetische Sanierung für Hausbesitzer in Deutschland so einfach, effizient und nachhaltig wie möglich.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16Exact matchRiedstadt, GermanyHQ recorded Oct 12, 202651-2006 contacts →

Exact match

“Willkommen bei aTmos – dem Experten für energetische Industrie- und Gebäudehüllensanierung.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17Exact matchGründau, GermanyHQ recorded Oct 12, 202651-2005 contacts →

Exact match

“Am 01.05.1997 wurde das Unternehmen Umwelt- und Energietechnik von Mike Lorenz gegründet.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18Exact matchHalle, GermanyHQ recorded Oct 12, 20261-105 contacts →

Exact match

“Energiekompetenz für mehr Effizienz”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19Exact matchGeislingen An Der Steige, GermanyHQ recorded Oct 12, 20261-105 contacts →

Exact match

“viviania steht für eine gesamtheitliche Energieberatung, die nicht nur den umfangreichen Aufgabenbereich der Energieberatung technisch, kaufmännisch und administrativ abdeckt…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20Exact matchRemchingen, GermanyHQ recorded Oct 12, 20261-104 contacts →

Exact match

“Wir unterstützen private Haushalte, Unternehmen und Kommunen bei allen Fragen rund um das Thema energieeffiziente Gebäude.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21Exact matchHamburg, GermanyHQ recorded Oct 12, 20261-104 contacts →

Exact match

“Wir modernisieren dein Haus in 22 Werktagen, energetische Sanierung leicht gemacht!”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22Exact matchKoblenz, GermanyHQ recorded Oct 12, 202651-2004 contacts →

Exact match

“Wir engagieren uns für energetische Sanierungen.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23Exact matchWolfsburg, GermanyHQ recorded Oct 12, 20261-104 contacts →

Exact match

“Wir bieten- Energieausweise - Energieberatung - Baubegleitung - Förderantragsstellung - Effizienzhausplanung - Handwerkervermittlung - Auditierung Unsere Kundschaft sind-…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24Exact matchRadeberg, GermanyHQ recorded Oct 12, 20261-103 contacts →

Exact match

“We make your building future-proof, transforming it into a renewable energy source.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25Exact matchSankt Augustin, GermanyHQ recorded Oct 12, 202611-503 contacts →

Exact match

“Wärme ist Leben – Effizient, nachhaltig, zukunftsweisend Bezahlbare Wärme für Ihr Zuhause – effizient geplant, technisch einwandfrei umgesetzt und im Einklang mit der Energiewende.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

Showing 25 of 175 energy efficient home retrofit companies based in Germany

See the full list, filter by size, metro and specialty, and access 306 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy efficient home retrofit companies based in Germany at a glance

As of Oct 12, 2026
36.4%Verified-email coverage
4.8Average contacts per company
1-10Median size (employees)
7.4%Largest-city concentration · Berlin
Oct 12, 2026Page data refreshed

Companies by employee count

1-10
108
11-50
36
51-200
18

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 175 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 “energy efficient home retrofit 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 306 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 October 12, 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 “energy efficient home retrofit companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficient home retrofit companies are there based in Germany?

RevenueBase identified 175 company matches for energy efficient home retrofit companies associated with Germany as of October 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?

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

Which city has the most energy efficient home retrofit companies?

Berlin leads with 13 company records, followed by Hamburg (8) and Munich (7).

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 306 professional contacts with verified work emails tracked across these 175 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 October 12, 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.