Company lists · Data refreshed November 2026

Top 25 Building energy optimization software companies based in Germany

RevenueBase identified 391 company matches for building energy optimization software companies associated with Germany as of November 2026 and tracks 6,250 professional contacts across them, including 2,567 with verified work emails. Berlin is the largest hub.

This list covers company matches for building energy optimization software 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 5, 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 5, 2026 How this list was built
391Companies
6,250Contacts tracked
2,567Verified emails
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The 25 largest building energy optimization software companies based in Germany

Ranked by team size
Top 25 of 391 company matches for building energy optimization software companies based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchEssen, GermanyHQ recorded Nov 5, 20265,001-10,0001,562 contacts →

Exact match

“Wir geben Häusern eine Zukunft.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBerlin, GermanyHQ recorded Nov 5, 20261,001-5,000602 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchMannheim, GermanyHQ recorded Nov 5, 202651-200154 contacts →

Exact match

“Die PAUL Tech AG mit Sitz in Mannheim macht Bestandsimmobilien grün und werthaltig.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchMunich, GermanyHQ recorded Nov 5, 202651-200145 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchBad Berleburg, GermanyHQ recorded Nov 5, 2026501-1,000140 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchHamburg, GermanyHQ recorded Nov 5, 202651-200116 contacts →

Exact match

“Pioneer of smart real estate We make real estate climate-friendly, comfortable and economical: To achieve this we digitize and network buildings on behalf of our customers and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchCologne, GermanyHQ recorded Nov 5, 202651-200110 contacts →

Exact match

“Based in Cologne (Germany) with over 100 employees, we operate Germany’s leading software solution for optimizing building operations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchBerlin, GermanyHQ recorded Nov 5, 202651-200102 contacts →

Exact match

“The energy-saving pilot for all boiler rooms.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchEssen, GermanyHQ recorded Nov 5, 202651-20095 contacts →

Exact match

“Wir als End-to-End Partner denken Energie ganzheitlich, wie kein anderer: Wir realisieren die Energieversorgung unserer Kunden als integriertes Gesamtsystem und übernehmen dabei…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchBerlin, GermanyHQ recorded Nov 5, 202651-20079 contacts →

Exact match

“CO2 emissions in the real estate sector must be reduced quickly.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact match52064 Aachen, GermanyHQ recorded Nov 5, 202651-20078 contacts →

Exact match

“With about 14 million hours of operation, meteoviva is the leading provider for AI-based solutions for optimised building operations worldwide - and ISO 27001 certified.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchStuttgart, GermanyHQ recorded Nov 5, 202651-20075 contacts →

Exact match

“metergrid develops innovative SaaS products for specific problems of decentralized energy systems.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchMunich, GermanyHQ recorded Nov 5, 202651-20075 contacts →

Exact match

“ecoplanet ist die weltweite erste Software für integriertes Energiemanagement: Verbrauchssteuerung, intelligente Beschaffung und Regulatorik an einem Ort & KI-basiert optimiert.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchFreiburg, GermanyHQ recorded Nov 5, 202651-20069 contacts →

Exact match

“greenventory is a high-tech startup from Freiburg that has set itself the task of bringing the energy transition to cities.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchWolfsburg, GermanyHQ recorded Nov 5, 202651-20067 contacts →

Exact match

“Wir sorgen für den optimalen Betrieb Ihrer Ladeinfrastruktur.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchAachen, GermanyHQ recorded Nov 5, 202651-20058 contacts →

Exact match

“Willkommen bei FirstX, der innovativen Softwareplattform von Klafka & Hinz Energie-Informations-Systeme GmbH.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchLeipzig, GermanyHQ recorded Nov 5, 202611-5054 contacts →

Exact match

“Revolutionizing the energy market and promoting renewable energies as a tech company?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchHamburg, GermanyHQ recorded Nov 5, 202611-5052 contacts →

Exact match

“encentive helps industrial companies reduce energy costs and CO₂ emissions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchMunich, GermanyHQ recorded Nov 5, 202651-20051 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 · Nov 5, 2026 · View company records in RevenueBase
20Exact matchIlmenau, GermanyHQ recorded Nov 5, 202651-20046 contacts →

Exact match

“Betterspace develops smart software solutions that make your day-to-day work easier.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchRegensburg, GermanyHQ recorded Nov 5, 202651-20041 contacts →

Exact match

“Wir sind ein junges, schnell wachsendes Unternehmen und entwickeln seit 2017 innovative Lösungen in Regensburg.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchBonn, GermanyHQ recorded Nov 5, 202651-20040 contacts →

Exact match

“Recogizer unterstützt Bestandshalter, Eigentümer und Dienstleister dabei, die Nachhaltigkeit von Gewerbeimmobilien messbar zu steigern.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchBerlin, GermanyHQ recorded Nov 5, 202611-5037 contacts →

Exact match

“metr aims to accelerate the reduction of global CO2 emissions and make buildings more energy-efficient and sustainable.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchFrankfurt, GermanyHQ recorded Nov 5, 202611-5034 contacts →

Exact match

“wtec is a global technology leader dedicated to innovation, sustainability, and smarter building operations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchStuttgart, GermanyHQ recorded Nov 5, 202651-20033 contacts →

Exact match

“Energy-efficient building renovations are complex.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 391 building energy optimization software companies based in Germany

See the full list, filter by size, metro and specialty, and access 2,567 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building energy optimization software companies based in Germany at a glance

As of Nov 5, 2026
41.1%Verified-email coverage
16.0Average contacts per company
1-10Median size (employees)
13.8%Largest-city concentration · Berlin
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
219
11-50
115
51-200
35
201-500
1
501-1,000
3
1,001-5,000
3
5,001-10,000
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 391 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 optimization software 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 2,567 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 5, 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 optimization software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building energy optimization software companies are there based in Germany?

RevenueBase identified 391 company matches for building energy optimization software 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?

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

Which city has the most building energy optimization software companies?

Berlin leads with 54 company records, followed by Munich (27) and Hamburg (15).

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 2,567 professional contacts with verified work emails tracked across these 391 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 5, 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.