Company lists · Data refreshed September 2026

Top 25 Decarbonization software companies based in Germany

Name: Decarbonization software companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 238 companies tracked

RevenueBase identified 238 decarbonization software companies headquartered in Germany as of September 2026 and tracks 6,267 professional contacts across them, including 2,742 with verified work emails. Berlin is the largest hub.

This list covers decarbonization 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 28, 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 28, 2026 86% judged on-target in blind review

238Companies

6,267Contacts tracked

2,742Verified emails

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

The 25 largest decarbonization software companies based in Germany

Ranked by team size

Top 25 of 238 decarbonization software companies based in Germany, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to decarbonization 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ISTA	Indirect evidence	Essen, GermanyHQ checked Sep 28, 2026	5,001-10,000	1,406 contacts →
	Indirect evidence “Wir geben Häusern eine Zukunft.” Source: RevenueBase Database · checked Sep 28, 2026
2	Osapiens	Partial evidence	Mannheim, GermanyHQ checked Sep 28, 2026	501-1,000	482 contacts →
	Partial evidence “osapiens – one platform for sustainable growth osapiens develops software that empowers companies to drive sustainable growth across their entire value chain.” Source: RevenueBase Database · checked Sep 28, 2026
3	Climatepartner	Indirect evidence	München, GermanyHQ checked Sep 28, 2026	501-1,000	376 contacts →
	Indirect evidence “ClimatePartner makes climate action valuable for every company at any stage of their journey.” Source: RevenueBase Database · checked Sep 28, 2026
4	Buildingminds	Partial evidence	Berlin, GermanyHQ checked Sep 28, 2026	51-200	157 contacts →
	Partial evidence “The AI-Powered Data Platform for Portfolio Value and Decarbonization.” Source: RevenueBase Database · checked Sep 28, 2026
5	Plan A	Partial evidence	Berlin, GermanyHQ checked Sep 28, 2026	51-200	114 contacts →
	Partial evidence “Plan A, a Diginex Company, is Europe’s leading provider of corporate carbon accounting and decarbonisation software, enabling companies to turn emissions intelligence into…” Source: RevenueBase Database · checked Sep 28, 2026
6	Reverion	Indirect evidence	Eresing, GermanyHQ checked Sep 28, 2026	51-200	113 contacts →
	Indirect evidence “As spin-off from the TU Munich, we're a highly tech-driven climate startup paving the way to 100% renewable, decarbonized future by making the most of biogas.” Source: RevenueBase Database · checked Sep 28, 2026
7	Einhundert	Indirect evidence	Köln, GermanyHQ checked Sep 28, 2026	51-200	87 contacts →
	Indirect evidence “Your partner for the energy transition in the real estate industry Since 2017, einhundert Energie GmbH has been supporting real estate companies in electrifying and decarbonizing…” Source: RevenueBase Database · checked Sep 28, 2026
8	Greenflash	Indirect evidence	Essen, GermanyHQ checked Sep 28, 2026	51-200	81 contacts →
	Indirect evidence “Wir als End-to-End Partner denken Energie ganzheitlich, wie kein anderer: Wir realisieren die Energieversorgung unserer Kunden als integriertes Gesamtsystem und übernehmen dabei…” Source: RevenueBase Database · checked Sep 28, 2026
9	Ecoplanet	Partial evidence	Munich, GermanyHQ checked Sep 28, 2026	51-200	80 contacts →
	Partial evidence “ecoplanet ist die weltweite erste Software für integriertes Energiemanagement: Verbrauchssteuerung, intelligente Beschaffung und Regulatorik an einem Ort & KI-basiert optimiert.” Source: RevenueBase Database · checked Sep 28, 2026
10	First Climate	Indirect evidence	Bad Vilbel, GermanyHQ checked Sep 28, 2026	51-200	79 contacts →
	Indirect evidence “With 25 years of experience, First Climate is a leading global provider of carbon management and green energy services for hundreds of corporate and public sector clients.” Source: RevenueBase Database · checked Sep 28, 2026
11	Carbmee	Indirect evidence	Berlin, GermanyHQ checked Sep 28, 2026	51-200	77 contacts →
	Indirect evidence “carbmee helps companies with complex supply chains to seamlessly collect, analyze, and report emissions data across all three scopes of the Greenhouse Gas (GHG) Protocol…” Source: RevenueBase Database · checked Sep 28, 2026
12	VIDA	Partial evidence	Munich, GermanyHQ checked Sep 28, 2026	11-50	75 contacts →
	Partial evidence “VIDA is the leading software for infrastructure investors to assess climate risks, track their impact, and meet reporting requirements.” Source: RevenueBase Database · checked Sep 28, 2026
13	Verso Gmbh	Partial evidence	München, GermanyHQ checked Sep 28, 2026	51-200	72 contacts →
	Partial evidence “VERSO ist Sustainability-Software-Pionier und Full-Service-Anbieter für die Nachhaltige Transformation im Mittelstand.” Source: RevenueBase Database · checked Sep 28, 2026
14	TANSO	Partial evidence	Munich, GermanyHQ checked Sep 28, 2026	51-200	70 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 28, 2026
15	Metergrid Gmbh	Indirect evidence	Stuttgart, GermanyHQ checked Sep 28, 2026	51-200	68 contacts →
	Indirect evidence “metergrid develops innovative SaaS products for specific problems of decentralized energy systems.” Source: RevenueBase Database · checked Sep 28, 2026
16	Greenventory	Indirect evidence	Freiburg, GermanyHQ checked Sep 28, 2026	51-200	65 contacts →
	Indirect evidence “greenventory is a high-tech startup from Freiburg that has set itself the task of bringing the energy transition to cities.” Source: RevenueBase Database · checked Sep 28, 2026
17	Planted	Indirect evidence	Cologne, GermanyHQ checked Sep 28, 2026	11-50	61 contacts →
	Indirect evidence “With Planted, we support companies holistically and individually in the implementation of their sustainability goals.” Source: RevenueBase Database · checked Sep 28, 2026
18	BFE Institut FÜR Energie UND Umwelt Gmbh	Indirect evidence	Mannheim, GermanyHQ checked Sep 28, 2026	51-200	57 contacts →
	Indirect evidence “Das BFE Institut für Energie und Umwelt GmbH ist ein Unternehmen der MVV Energie AG und zählt mit über Projekten und ca.” Source: RevenueBase Database · checked Sep 28, 2026
19	Envistra Gmbh	Indirect evidence	Hürth, GermanyHQ checked Sep 28, 2026	51-200	57 contacts →
	Indirect evidence “Die Dienstleistungen der envistra GmbH zielen auf eine schnelle und langfristige Kostenreduktion und leisten einen wesentlichen Beitrag zu einer nachhaltigen…” Source: RevenueBase Database · checked Sep 28, 2026
20	Klafka & Hinz Energie-Informations-Systeme Gmbh	Partial evidence	Aachen, GermanyHQ checked Sep 28, 2026	51-200	55 contacts →
	Partial evidence “Willkommen bei FirstX, der innovativen Softwareplattform von Klafka & Hinz Energie-Informations-Systeme GmbH.” Source: RevenueBase Database · checked Sep 28, 2026
21	Cozero	Indirect evidence	Berlin, GermanyHQ checked Sep 28, 2026	11-50	54 contacts →
	Indirect evidence “Join to our next webinar "Would your carbon numbers survive an audit?" on Jul.” Source: RevenueBase Database · checked Sep 28, 2026
22	CUBOS	Indirect evidence	Wolfsburg, GermanyHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence “Wir sorgen für den optimalen Betrieb Ihrer Ladeinfrastruktur.” Source: RevenueBase Database · checked Sep 28, 2026
23	Ampeers Energy	Indirect evidence	Munchen, GermanyHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence “Der Gebäudesektor ist einer der Hauptverursacher klimaschädlicher CO₂-Emissionen.” Source: RevenueBase Database · checked Sep 28, 2026
24	Optimax Energy Gmbh	Indirect evidence	Leipzig, GermanyHQ checked Sep 28, 2026	11-50	51 contacts →
	Indirect evidence “Revolutionizing the energy market and promoting renewable energies as a tech company?” Source: RevenueBase Database · checked Sep 28, 2026
25	Thinkstep	Indirect evidence	Leinfelden-Echterdingen, GermanyHQ checked Sep 28, 2026	201-500	51 contacts →
	Indirect evidence “thinkstep enables organizations worldwide to succeed sustainably.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: decarbonization software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names decarbonization software companies.
Partial evidence: Its own public description names part of decarbonization software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name decarbonization software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 238 decarbonization software companies based in Germany

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,742 reachable decision-makers.

Free signup · no credit card

View the full list →

Decarbonization software companies based in Germany at a glance

As of Sep 28, 2026

43.8%Verified-email coverage

26.3Average contacts per company

11-50Median size (employees)

18.9%Largest-city concentration · Berlin

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

108

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 238 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 decarbonization 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 “decarbonization 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 decarbonization 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 decarbonization 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, 2,742 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 28, 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.

Decarbonization software companies by metro

Decarbonization software companies in Berlin45

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 decarbonization 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 decarbonization software companies are there based in Germany?

RevenueBase identified 238 decarbonization 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 decarbonization software companies?

Berlin leads with 45 headquartered companies, followed by Hamburg (17) and Munchen (17).

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 2,742 verified decision-maker contacts tracked across these 238 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 238 decarbonization software companies based in Germany. Start with a free account, no credit card.

Download this list →

Related lists

Decarbonization software 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 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.