Company lists · Data refreshed November 2026

Top 25 Hvac efficiency companies based in Germany

RevenueBase identified 132 company matches for hvac efficiency companies associated with Germany as of November 2026 and tracks 477 professional contacts across them, including 172 with verified work emails. Berlin is the largest hub.

This list covers company matches for hvac efficiency 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
132Companies
477Contacts tracked
172Verified emails
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The 25 largest hvac efficiency companies based in Germany

Ranked by team size
Top 25 of 132 company matches for hvac efficiency 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 matchUlm, GermanyHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“The Envola System is an innovative, holistic and most sustainable approach to enable smart and efficient HVAC solutions for buildings.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHamburg, GermanyHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“RENEWA ist dein unabhängiger Partner für energetische Sanierung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchStuttgart, GermanyHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Energy-efficient building renovations are complex.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact match45768 Marl, GermanyHQ recorded Nov 6, 2026n/a25 contacts →

Exact match

“Wir sind Ihr zuverlässiger Komplettanbieter für Kälte, Lüftungs, Kühl- und Heizlösungen in Gewerbe und Industrie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBielefeld, GermanyHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Perfect building performance - right from the first minute of operation?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“perto is an energy efficiency service provider for large properties.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSalem, GermanyHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“tga bodensee GmbH ist ein Unternehmen, das die Beratung und Umsetzung von zukunftsweisender Haus- und Energietechnik sowohl für Privat- als auch Gewerbekunden anbietet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchDinslaken, GermanyHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Klimaanlagen Montagservice!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Planning, consulting and execution for technical building equipment (tbe)- HVAC+R Basic services: Consulting / Concept / Planning / Tendering and awarding of contracts / Site…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMemmingen, GermanyHQ recorded Nov 6, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchFrankfurt, GermanyHQ recorded Nov 6, 202651-2007 contacts →

Exact match

“Wbmax GmbH delivers reliable and efficient heating, ventilation, plumbing, and electrical solutions to ensure comfortable, safe, and efficient spaces.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHamburg, GermanyHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Elbe Energie GmbH Energietechnik Energiehandel is a company based out of 14 Grimm, Hamburg, Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchFulda, GermanyHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Ettenberger GmbH & Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchOppurg Ot Kolba, GermanyHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Ob Bürogebäude oder komplexe Industrieanlage - wir erstellen übergreifende Planungs- und Ausführungskonzepte für mehr Energieeffizienz.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBrunsbüttel, GermanyHQ recorded Nov 6, 202651-2005 contacts →

Exact match

“Seit über 50 Jahren verbaut die HEINRICH KRUMME Gesellschaft für Heizungs, Klima- und Sanitärtechnik mbH energieeffiziente Haustechnik auf Großbaustellen im gesamten Bundesgebiet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchFreiburg, GermanyHQ recorded Nov 6, 20261-104 contacts →

Exact match

“messeffekt: Transforming Energy Efficiency in Commercial Buildings About Us: Welcome to messeffekt, a pioneering spinoff company from Fraunhofer ISE, specializing in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHeidelberg, GermanyHQ recorded Nov 6, 202651-2003 contacts →

Exact match

“Jahrelange Erfahrungen in der Planung und Ausführung von HLK Anlagen haben unsere Firma zu einem kompetenten Ansprechpartner in der Region geprägt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStuttgart, GermanyHQ recorded Nov 6, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchKönigs Wusterhausen, GermanyHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Ihr Partner für HKLS Dienstleistungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBestwig, GermanyHQ recorded Nov 6, 202611-502 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSiegburg, GermanyHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Haustechnik Konstantin Fabry GmbH is a company based out of 49 Industriestraße, Siegburg, Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWald-michelbach, GermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Ader Energy GmbH umfasst die Beratung von Hauseigentümern, Immobilienmaklern, Hausverwaltungen und Kommunen zur Steigerung der Energieeffizienz von Wohngebäuden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLudwigsburg, GermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

“In über 15 Jahren in den Bereichen Wärme- & Kältetechnik ist uns des Öfteren aufgefallen, dass Anlagen falsch projektiert, dimensioniert und verbaut worden sind und die Kunden…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHamburg, GermanyHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Nachhaltige Lösungen für Immobilienbesitzer, Hausverwaltungen und Investoren Unsere Leistungen sind speziell darauf ausgelegt, Ihre Immobilie zukunftssicher und effizient zu…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchFrankfurt, GermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

“EMHAY Energieberatung is a company based out of Königsteiner Str, Frankfurt am Main, Germany.”

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

Showing 25 of 132 hvac efficiency companies based in Germany

See the full list, filter by size, metro and specialty, and access 172 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hvac efficiency companies based in Germany at a glance

As of Nov 6, 2026
36.1%Verified-email coverage
3.6Average contacts per company
1-10Median size (employees)
7.6%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
85
11-50
24
51-200
8
201-500
1
1,001-5,000
1
5,001-10,000
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 132 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 “hvac efficiency 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 172 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 “hvac efficiency companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac efficiency companies are there based in Germany?

RevenueBase identified 132 company matches for hvac efficiency 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?

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

Which city has the most hvac efficiency companies?

Berlin leads with 10 company records, followed by Hamburg (6) and Essen (3).

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 172 professional contacts with verified work emails tracked across these 132 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.