Company lists · Data refreshed October 2026

Top 25 Energy efficiency optimization companies based in Germany

Name: Energy efficiency optimization companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 1,105 companies tracked

RevenueBase identified 1,105 company matches for energy efficiency optimization companies associated with Germany as of October 2026 and tracks 5,770 professional contacts across them, including 2,373 with verified work emails. Berlin is the largest hub.

This list covers company matches for energy efficiency optimization 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

1,105Companies

5,770Contacts tracked

2,373Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest energy efficiency optimization companies based in Germany

Ranked by team size

Top 25 of 1,105 company matches for energy efficiency optimization 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Westbridge Advisory	Exact match	Frankfurt, GermanyHQ recorded Oct 12, 2026	51-200	169 contacts →
	Exact match “Wir sind ein führender europäischer Energie- und Nachhaltigkeitsberater in der Immobilienwirtschaft.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Paul Tech AG	Exact match	Mannheim, GermanyHQ recorded Oct 12, 2026	51-200	148 contacts →
	Exact match “Die PAUL Tech AG mit Sitz in Mannheim macht Bestandsimmobilien grün und werthaltig.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	TADO	Exact match	Munich, GermanyHQ recorded Oct 12, 2026	51-200	146 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
4	Pure Energy	Exact match	Düsseldorf, GermanyHQ recorded Oct 12, 2026	51-200	88 contacts →
	Exact match “Pure Energy is a private clean-tech organization focusing on commercial optimization of renewable & BESS assets, energy trading, origination, and "hands-on" advisory services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	BLS Energieplan Gmbh	Exact match	Berlin, GermanyHQ recorded Oct 12, 2026	51-200	86 contacts →
	Exact match “Die BLS Energieplan GmbH wurde 1984 gegründet und hat ihr Portfolio an Ingenieurdienstleistungen seither kontinuierlich erweitert.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Taprogge Gesellschaft MBH	Exact match	Wetter, GermanyHQ recorded Oct 12, 2026	201-500	80 contacts →
	Exact match “TAPROGGE is a global cleantech specialist.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Enloc AG	Exact match	Dresden, GermanyHQ recorded Oct 12, 2026	51-200	79 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
8	Metiundo Gmbh	Exact match	Berlin, GermanyHQ recorded Oct 12, 2026	51-200	74 contacts →
	Exact match “CO2 emissions in the real estate sector must be reduced quickly.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Oni-Wärmetrafo Gmbh	Exact match	Lindlar, GermanyHQ recorded Oct 12, 2026	201-500	72 contacts →
	Exact match “Seit über vier Jahrzehnten setzen Kunden auf innovative Energiespartechnik aus dem Hause ONI.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Limón Gmbh	Exact match	Kassel, GermanyHQ recorded Oct 12, 2026	51-200	58 contacts →
	Exact match “Limón ist Ihr Dienstleister und Lösungsanbieter für Energieeffizienz in der Industrie.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Envistra Gmbh	Exact match	Hürth, GermanyHQ recorded Oct 12, 2026	51-200	58 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 12, 2026 · View company records in RevenueBase
12	Fact Gmbh Efacilities Solutions	Exact match	Boblingen, GermanyHQ recorded Oct 12, 2026	51-200	57 contacts →
	Exact match “FACT.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	BFE Institut FÜR Energie UND Umwelt Gmbh	Exact match	Mannheim, GermanyHQ recorded Oct 12, 2026	51-200	51 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 12, 2026 · View company records in RevenueBase
14	Ökotec Energiemanagement Gmbh	Exact match	Berlin, GermanyHQ recorded Oct 12, 2026	51-200	49 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 12, 2026 · View company records in RevenueBase
15	Encentive Gmbh	Exact match	Hamburg, GermanyHQ recorded Oct 12, 2026	11-50	49 contacts →
	Exact match “encentive helps industrial companies reduce energy costs and CO₂ emissions.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Egs-Plan Gmbh	Exact match	Stuttgart, GermanyHQ recorded Oct 12, 2026	51-200	48 contacts →
	Exact match “Wir entwickeln energieeffiziente Gebäude und klimaneutrale Quartiere für die Zukunft.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	42watt	Exact match	Munich, GermanyHQ recorded Oct 12, 2026	51-200	47 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 12, 2026 · View company records in RevenueBase
18	Wolff & Müller Energy Gmbh	Exact match	Ludwigsburg, GermanyHQ recorded Oct 12, 2026	51-200	46 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 12, 2026 · View company records in RevenueBase
19	Assmann Emutec	Exact match	Norderstedt, GermanyHQ recorded Oct 12, 2026	51-200	45 contacts →
	Exact match “Assmann Emutec ist ein Unternehmen des BKW Engineering - Network of Excellence® – dem größten Engineering Netzwerk im deutschsprachigen Raum.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Präg Gruppe	Exact match	Kempten (allgäu), GermanyHQ recorded Oct 12, 2026	201-500	43 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 12, 2026 · View company records in RevenueBase
21	Bode Unternehmensgruppe	Exact match	Münster, GermanyHQ recorded Oct 12, 2026	51-200	41 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 12, 2026 · View company records in RevenueBase
22	Averdung Ingenieure & Berater Gmbh	Exact match	Hamburg, GermanyHQ recorded Oct 12, 2026	51-200	39 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 12, 2026 · View company records in RevenueBase
23	Berliner Energieagentur Gmbh BEA	Exact match	Berlin, GermanyHQ recorded Oct 12, 2026	11-50	34 contacts →
	Exact match “Die Berliner Energieagentur GmbH (BEA) ist ein modernes Energiedienstleistungsunternehmen.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	ERN	Exact match	Ludwigshafen Am Rhein, GermanyHQ recorded Oct 12, 2026	11-50	33 contacts →
	Exact match “Die Energiedienstleistungen Rhein-Neckar GmbH (ERN) ist Teil der GreenFlex Organisation und ist im Schwerpunkt verantwortlich für Bau- und Contracting-Lösungen im industriellen…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Ingenieurnetzwerk Energie EG	Exact match	Bad Iburg, GermanyHQ recorded Oct 12, 2026	51-200	32 contacts →
	Exact match “Wir, die iNeG, sind ein genossenschaftlich organisiertes Ingenieurbüro und erbringen alle Leistungen im Energie- management.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “energy efficiency optimization companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,105 energy efficiency optimization companies based in Germany

See the full list, filter by size, metro and specialty, and access 2,373 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Energy efficiency optimization companies based in Germany at a glance

As of Oct 12, 2026

41.1%Verified-email coverage

5.2Average contacts per company

1-10Median size (employees)

6.4%Largest-city concentration · Berlin

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

704

11-50

293

51-200

201-500

1,001-5,000

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 1,105 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 efficiency optimization 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 2,373 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.

Energy efficiency optimization companies by metro

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 efficiency optimization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficiency optimization companies are there based in Germany?

RevenueBase identified 1,105 company matches for energy efficiency optimization 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?

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

Which city has the most energy efficiency optimization companies?

Berlin leads with 71 company records, followed by Munich (46) and Hamburg (34).

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 2,373 professional contacts with verified work emails tracked across these 1,105 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.

Ready to reach these companies? Verified emails and direct dials for all 1,105 energy efficiency optimization companies based in Germany. Start with a free account, no credit card.

Download this list →

Related lists

Energy efficiency optimization companies by geography

Browse the directory

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.