Company lists · Data refreshed October 2026

Top 25 Building energy efficiency consultants based in Germany

RevenueBase identified 868 company matches for building energy efficiency consultants associated with Germany as of October 2026 and tracks 3,707 professional contacts across them, including 1,327 with verified work emails. Berlin is the largest hub.

This list covers company matches for building energy efficiency consultants 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 9, 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 9, 2026 How this list was built
868Companies
3,707Contacts tracked
1,327Verified emails
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The 25 largest building energy efficiency consultants based in Germany

Ranked by team size
Top 25 of 868 company matches for building energy efficiency consultants based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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 matchFrankfurt, GermanyHQ recorded Oct 9, 202651-200169 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchBamberg, GermanyHQ recorded Oct 9, 202651-20060 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3Exact matchHürth, GermanyHQ recorded Oct 9, 202651-20058 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 · Oct 9, 2026 · View company records in RevenueBase
4Exact matchMannheim, GermanyHQ recorded Oct 9, 202651-20051 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 · Oct 9, 2026 · View company records in RevenueBase
5Exact matchBerlin, GermanyHQ recorded Oct 9, 202651-20049 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 · Oct 9, 2026 · View company records in RevenueBase
6Exact matchStuttgart, GermanyHQ recorded Oct 9, 202651-20048 contacts →

Exact match

“Wir entwickeln energieeffiziente Gebäude und klimaneutrale Quartiere für die Zukunft.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchMunich, GermanyHQ recorded Oct 9, 202651-20047 contacts →

Exact match

“In a market full of complexity and empty promises, 42watt makes energy-efficient building modernization simple, reliable, and actionable.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8Exact matchLudwigsburg, GermanyHQ recorded Oct 9, 202651-20046 contacts →

Exact match

“WOLFF & MÜLLER ENERGY GMBH ist Teil der traditionsreichen Unternehmensgruppe WOLFF & MÜLLER, einem mittelständischen Familienunternehmen mit Stammsitz in Stuttgart.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9Exact matchKempten (allgäu), GermanyHQ recorded Oct 9, 2026201-50043 contacts →

Exact match

“ENERGIE IN VIELEN FACETTEN PRÄG berät seine Kunden in allen Energiefragen und deckt die gesamte Bandbreite des Energiebedarfs ab: von der Mobilität, über die Wärmeversorgung, bis…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10Exact matchMünster, GermanyHQ recorded Oct 9, 202651-20041 contacts →

Exact match

“Der Generalplaner für nachhaltiges Bauen & Sanieren Wir sind Ihr unabhängiger Partner für Energieberatung, Fördermittelmanagement und die energieeffiziente Planung und Umsetzung…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchHamburg, GermanyHQ recorded Oct 9, 202651-20039 contacts →

Exact match

“Als Problemlöser und Beschleuniger für die Energiewende leisten wir unseren Beitrag als kreativer und kompetenter Partner.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12Exact matchGelsenkirchen, GermanyHQ recorded Oct 9, 202651-20035 contacts →

Exact match

“Since 1996 the EE ENERGY ENGINEERS GmbH provides consulting services for an innovative and climate-friendly future energy supply.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13Exact matchBerlin, GermanyHQ recorded Oct 9, 202611-5034 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14Exact matchStuttgart, GermanyHQ recorded Oct 9, 202651-20032 contacts →

Exact match

“Energy-efficient building renovations are complex.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15Exact matchBerlin, GermanyHQ recorded Oct 9, 202611-5031 contacts →

Exact match

“admi Kommunal GmbH – Gemeinsam die kommunale Energiewende vorantreiben Wir unterstützen Städte und Gemeinden dabei, ihre Liegenschaften wirtschaftlich und zukunftsfähig zu…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16Exact matchHamburg, GermanyHQ recorded Oct 9, 202651-20030 contacts →

Exact match

“RENEWA ist dein unabhängiger Partner für energetische Sanierung.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchKarlsruhe, GermanyHQ recorded Oct 9, 202651-20029 contacts →

Exact match

“Energieeffizienzmaßnahmen sind nicht immer mit hohen Investitionen verbunden.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18Exact matchSiegen, GermanyHQ recorded Oct 9, 202651-20026 contacts →

Exact match

“G-TEC Ingenieure GmbH plant zukunftsfähige Gebäudeenergetik durch integrierte Gesamtplanungsleistungen und unter Berücksichtigung von Gebäudetechnik und Gebäudephysik.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19Exact matchEssen, GermanyHQ recorded Oct 9, 202651-20025 contacts →

Exact match

“Wir sind.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchHauptniederlassung München / Süd, GermanyHQ recorded Oct 9, 202651-20025 contacts →

Exact match

“Über uns Unternehmensleitbild INOVIS IN(n)OVATION Wir sind ein Team hervorragend ausgebildeter und motivierter Ingenieure und Mitarbeiter.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21Exact matchMunich, GermanyHQ recorded Oct 9, 202611-5024 contacts →

Exact match

“EEP Energieconsulting GmbH is a management consulting Company.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchDarmstadt, GermanyHQ recorded Oct 9, 202611-5023 contacts →

Exact match

“Wir helfen Ihnen, Ihre Einsparpotenziale in ihrem Energiesystem zu erkennen, Investitionsentscheidungen zu treffen und eine vernetzte Optimierung herzustellen.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchBerlin, GermanyHQ recorded Oct 9, 202651-20023 contacts →

Exact match

“Als inhabergeführtes Ingenieurbüro mit 35 Mitarbeitenden liegt peil und partner ingenieure GmbH zentral im Herzen Berlins.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24Exact matchHanover, GermanyHQ recorded Oct 9, 202651-20021 contacts →

Exact match

“Wir sind seit 2009 spezialisierter Dienstleister im Bereich der Energie- und Fördergeldberatung mit einer Vielzahl namhafter Kunden aller Gewerke.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchMünster, GermanyHQ recorded Oct 9, 202611-5020 contacts →

Exact match

“Sind Ihnen Ihre Energiekosten ein Dorn im Auge?”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

Showing 25 of 868 building energy efficiency consultants based in Germany

See the full list, filter by size, metro and specialty, and access 1,327 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building energy efficiency consultants based in Germany at a glance

As of Oct 9, 2026
35.8%Verified-email coverage
4.3Average contacts per company
1-10Median size (employees)
6.8%Largest-city concentration · Berlin
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
608
11-50
187
51-200
37
201-500
2
501-1,000
1
1,001-5,000
2

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 868 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 “building energy efficiency consultants” 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 1,327 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 9, 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 “building energy efficiency consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building energy efficiency consultants are there based in Germany?

RevenueBase identified 868 company matches for building energy efficiency consultants 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?

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

Which city has the most building energy efficiency consultants?

Berlin leads with 59 company records, followed by Munich (37) and Hamburg (35).

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 1,327 professional contacts with verified work emails tracked across these 868 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 9, 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.