Company lists · Data refreshed September 2026

Top 25 Real estate sustainability software companies based in Germany

RevenueBase identified 282 real estate sustainability software companies headquartered in Germany as of September 2026 and tracks 5,691 professional contacts across them, including 2,802 with verified work emails. Berlin is the largest hub.

This list covers real estate sustainability software companies headquartered in Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
282Companies
5,691Contacts tracked
2,802Verified emails
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The 25 largest real estate sustainability software companies based in Germany

Ranked by team size
Top 25 of 282 real estate sustainability software companies based in Germany, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to real estate sustainability software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceEssen, GermanyHQ checked Sep 29, 20265,001-10,0001,406 contacts →

Indirect evidence

“Wir geben Häusern eine Zukunft.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceMünchen, GermanyHQ checked Sep 29, 2026501-1,000376 contacts →

Indirect evidence

“ClimatePartner makes climate action valuable for every company at any stage of their journey.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceMainz, GermanyHQ checked Sep 29, 20261,001-5,000297 contacts →

Indirect evidence

“Aareon ist Europas etablierter Anbieter von SaaS-Lösungen für die Immobilienwirtschaft und Wegbereiter für die digitale Zukunft der Branche.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceMainz, GermanyHQ checked Sep 29, 20261,001-5,000297 contacts →

Indirect evidence

“Sustainable spaces for all We are Europe's trusted provider of SaaS solutions for the property industry, leading the charge towards a digital future.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceAachen, GermanyHQ checked Sep 29, 2026201-500194 contacts →

Indirect evidence

“onOffice – always on your side Gemeinsam für die Immobilienbranche: Unter der Devise arbeitet unser einzigartiges Team von Anfang an eng mit Maklern und Immo-Experten zusammen und…”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceBerlin, GermanyHQ checked Sep 29, 2026201-500164 contacts →

Partial evidence

“Quentic is a premier SaaS solution provider for EHS (Environment, Health, and Safety) and sustainability management, serving more than 1,200 customers worldwide.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceBerlin, GermanyHQ checked Sep 29, 202651-200157 contacts →

Indirect evidence

“The AI-Powered Data Platform for Portfolio Value and Decarbonization.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceMannheim, GermanyHQ checked Sep 29, 202651-200155 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceFrankfurt, GermanyHQ checked Sep 29, 202651-200147 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceHamburg, GermanyHQ checked Sep 29, 2026201-500121 contacts →

Indirect evidence

“FRANK bietet ganzheitliche Dienstleistungen im Bereich ökologisch und sozial nachhaltiger Wohn- und Gewerbeimmobilien.”

Source: RevenueBase Database · checked Sep 29, 2026
11Strong evidenceHamburg, GermanyHQ checked Sep 29, 202651-200105 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceLeipzig, GermanyHQ checked Sep 29, 202651-20098 contacts →

Partial evidence

“Since FIO has stood consistently for high efficiency web-based software solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidenceMünchen, GermanyHQ checked Sep 29, 202651-20072 contacts →

Strong evidence

“VERSO ist Sustainability-Software-Pionier und Full-Service-Anbieter für die Nachhaltige Transformation im Mittelstand.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceMunich, GermanyHQ checked Sep 29, 202651-20070 contacts →

Partial evidence

“Tanso is the ESG and carbon accounting software that industrial companies in DACH rely on to stay competitive and compliant.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceMunich, GermanyHQ checked Sep 29, 202651-20059 contacts →

Partial evidence

“Code Gaia is the operating system for profitable ESG & EHS management - driven by intelligent software and personal support, for more growth and resilience.”

Source: RevenueBase Database · checked Sep 29, 2026
16Strong evidenceBerlin, GermanyHQ checked Sep 29, 202651-20056 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
17Strong evidenceMunich, GermanyHQ checked Sep 29, 202651-20055 contacts →

Strong evidence

“Manage your real estate portfolio with foresight.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceRatingen, GermanyHQ checked Sep 29, 202651-20053 contacts →

Partial evidence

“CREM SOLUTIONS ist ein führender deutscher Anbieter von Softwarelösungen für das kaufmännische und technische Immobilienmanagement.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceBerlin, GermanyHQ checked Sep 29, 202651-20053 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceMunchen, GermanyHQ checked Sep 29, 202651-20052 contacts →

Indirect evidence

“Der Gebäudesektor ist einer der Hauptverursacher klimaschädlicher CO₂-Emissionen.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLeinfelden-Echterdingen, GermanyHQ checked Sep 29, 2026201-50051 contacts →

Indirect evidence

“thinkstep enables organizations worldwide to succeed sustainably.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceIlmenau, GermanyHQ checked Sep 29, 202651-20043 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceBonn, GermanyHQ checked Sep 29, 202651-20041 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceBerlin, GermanyHQ checked Sep 29, 202611-5037 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceGiggenhausen, GermanyHQ checked Sep 29, 202651-20036 contacts →

Partial evidence

“Die DOMUS Software AG ist seit 1974 die Spezialistin für wohnungswirtschaftliche Softwaresysteme zur Verwaltung von Wohn- und Gewerbeimmobilien.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 282 real estate sustainability software companies based in Germany

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Real estate sustainability software companies based in Germany at a glance

As of Sep 29, 2026
49.2%Verified-email coverage
20.2Average contacts per company
1-10Median size (employees)
21.3%Largest-city concentration · Berlin
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
152
11-50
84
51-200
30
201-500
5
501-1,000
3
1,001-5,000
2
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 282 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among real estate sustainability software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Germany whose own description of what they do matches “real estate sustainability software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names real estate sustainability software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among real estate sustainability software companies, and records with no verified work email. Companies headquartered outside Germany are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 2,802 across the full list. 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 September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Real estate sustainability software companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names real estate sustainability software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many real estate sustainability software companies are there based in Germany?

RevenueBase identified 282 real estate sustainability software companies headquartered in Germany as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

ISTA, headquartered in Essen, tops this list with the largest team on record.

Which city has the most real estate sustainability software companies?

Berlin leads with 60 headquartered companies, followed by Munchen (17) and Hamburg (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,802 verified decision-maker contacts tracked across these 282 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.