Company lists · Data refreshed September 2026

Top 25 Renewable energy IT service providers based in Germany

Name: Renewable energy IT service providers based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 3,257 companies tracked

RevenueBase identified 3,257 renewable energy IT service providers headquartered in Germany as of September 2026 and tracks 71,787 professional contacts across them, including 23,516 with verified work emails. Berlin is the largest hub.

This list covers renewable energy IT service providers 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 17, 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 17, 2026 86% judged on-target in blind review

3,257Companies

71,787Contacts tracked

23,516Verified emails

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The 25 largest renewable energy IT service providers based in Germany

Ranked by team size

Top 25 of 3,257 renewable energy IT service providers based in Germany, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy IT service providers: 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	NTT Data Business Solutions	Partial evidence	Bielefeld, GermanyHQ checked Sep 17, 2026	10001+	10,733 contacts →
	Partial evidence “We understand the business of our clients and know what it takes to transform it into the future.” Source: RevenueBase Database · checked Sep 17, 2026
2	Arvato Systems	Indirect evidence	Gütersloh, GermanyHQ checked Sep 17, 2026	1,001-5,000	2,537 contacts →
	Indirect evidence “We are Arvato Systems - and we live digitalization.” Source: RevenueBase Database · checked Sep 17, 2026
3	Fichtner	Partial evidence	Stuttgart, GermanyHQ checked Sep 17, 2026	1,001-5,000	1,279 contacts →
	Partial evidence “As a leading, independent engineering and consultancy enterprise active in the sectors of energy and infrastructure, Fichtner handles challenging projects in countries all over…” Source: RevenueBase Database · checked Sep 17, 2026
4	Materna	Partial evidence	Dortmund, GermanyHQ checked Sep 17, 2026	1,001-5,000	1,196 contacts →
	Partial evidence “Als international erfolgreicher IT-Dienstleister beraten und begleiten wir Unternehmen und Behörden in allen Belangen der Digitalisierung.” Source: RevenueBase Database · checked Sep 17, 2026
5	E.On Deutschland	Partial evidence	Munich, GermanyHQ checked Sep 17, 2026	5,001-10,000	1,026 contacts →
	Partial evidence “Die E.ON Energie Deutschland GmbH ist ein bundesweit führendes Energieunternehmen und Dachgesellschaft des E.ON Vertriebs in Deutschland.” Source: RevenueBase Database · checked Sep 17, 2026
6	ALL For ONE	Partial evidence	Filderstadt-bernhausen, GermanyHQ checked Sep 17, 2026	1,001-5,000	949 contacts →
	Partial evidence “TURNING TECHNOLOGY INTO BUSINESS SUCCESS Die All for One Group ist ein führender internationaler IT, Consulting- und Service-Provider rund um SAP – und darüber hinaus.” Source: RevenueBase Database · checked Sep 17, 2026
7	1komma5	Partial evidence	Hamburg, GermanyHQ checked Sep 17, 2026	1,001-5,000	897 contacts →
	Partial evidence “1KOMMA5° wurde gegründet um Millionen Gebäude in Europa klimaneutral immer mit dem günstigsten Strom zu versorgen - ganz ohne fossile Energie.” Source: RevenueBase Database · checked Sep 17, 2026
8	Fraunhofer-Institut FÜR Solare Energiesysteme ISE	Partial evidence	Freiburg, GermanyHQ checked Sep 17, 2026	1,001-5,000	894 contacts →
	Partial evidence “The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany is the largest solar research institute in Europe.” Source: RevenueBase Database · checked Sep 17, 2026
9	BTC	Partial evidence	Oldenburg, GermanyHQ checked Sep 17, 2026	1,001-5,000	833 contacts →
	Partial evidence “We are more than the sum of many IT experts, consultants, software developers and system administrators.” Source: RevenueBase Database · checked Sep 17, 2026
10	ABO Energy	Strong evidence	Wiesbaden, GermanyHQ checked Sep 17, 2026	1,001-5,000	785 contacts →
	Strong evidence “Founded in 1996, ABO Energy (fomerly known as ABO Wind) is among Europe’s leading developers of renewable energy projects.” Source: RevenueBase Database · checked Sep 17, 2026
11	Juwi Group	Strong evidence	Wörrstadt, GermanyHQ checked Sep 17, 2026	1,001-5,000	785 contacts →
	Strong evidence “For 30 years, we have been one of the leading specialists in renewable energies, offering complete project development and other services related to the planning, construction…” Source: RevenueBase Database · checked Sep 17, 2026
12	IB Vogt Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 17, 2026	501-1,000	784 contacts →
	Indirect evidence “ib vogt is firmly committed to supporting the decarbonisation of the global electricity sector.” Source: RevenueBase Database · checked Sep 17, 2026
13	Mainova AG	Partial evidence	Frankfurt Am Main, GermanyHQ checked Sep 17, 2026	1,001-5,000	750 contacts →
	Partial evidence “Wir sind der führende Energiedienstleister in Frankfurt am Main und versorgen über eine Million Menschen mit Strom, Gas, Wärme und Wasser.” Source: RevenueBase Database · checked Sep 17, 2026
14	Metafinanz	Partial evidence	Munich, GermanyHQ checked Sep 17, 2026	501-1,000	673 contacts →
	Partial evidence “For over 35 years, metafinanz Informationssysteme GmbH, a business and IT consulting company, has been at the side of its customers in an increasingly digital and dynamic world.” Source: RevenueBase Database · checked Sep 17, 2026
15	Cloudflight	Indirect evidence	Munich, GermanyHQ checked Sep 17, 2026	501-1,000	608 contacts →
	Indirect evidence “Cloudflight is one of the leading full-service providers in the field of industrial digital transformation.” Source: RevenueBase Database · checked Sep 17, 2026
16	Q Energy	Partial evidence	Berlin, GermanyHQ checked Sep 17, 2026	201-500	565 contacts →
	Partial evidence “Q ENERGY is Europe’s 360° green energy company.” Source: RevenueBase Database · checked Sep 17, 2026
17	Würth IT Gmbh	Indirect evidence	Niedernhall, GermanyHQ checked Sep 17, 2026	1,001-5,000	526 contacts →
	Indirect evidence “Our passion We are an internationally active, medium-sized family business and a member of the Würth Group.” Source: RevenueBase Database · checked Sep 17, 2026
18	Digitall	Indirect evidence	Frankfurt, GermanyHQ checked Sep 17, 2026	1,001-5,000	522 contacts →
	Indirect evidence “We are DIGITALL - a European provider of digital solutions and services.” Source: RevenueBase Database · checked Sep 17, 2026
19	Knauf IT	Indirect evidence	Kitzingen, GermanyHQ checked Sep 17, 2026	501-1,000	502 contacts →
	Indirect evidence “Knauf Information Services is the service partner behind the global growth and digital transformation of the family-owned Knauf Group, one of the world's leading manufacturers of…” Source: RevenueBase Database · checked Sep 17, 2026
20	Enertrag	Strong evidence	Dauerthal, GermanyHQ checked Sep 17, 2026	1,001-5,000	492 contacts →
	Strong evidence “ENERTRAG provides a full range of services related to renewable energies.” Source: RevenueBase Database · checked Sep 17, 2026
21	GP Joule	Partial evidence	Reußenköge, GermanyHQ checked Sep 17, 2026	501-1,000	480 contacts →
	Partial evidence “GP JOULE is an integrated energy supplier that covers the entire energy value chain, from generation to use – and from consulting and financing through to project planning…” Source: RevenueBase Database · checked Sep 17, 2026
22	Lichtblick SE	Partial evidence	Hamburg, GermanyHQ checked Sep 17, 2026	501-1,000	449 contacts →
	Partial evidence “Here at LichtBlick, we create an excellent climate – with green energy for at home and on the move.” Source: RevenueBase Database · checked Sep 17, 2026
23	VSB Group	Strong evidence	Dresden, GermanyHQ checked Sep 17, 2026	201-500	446 contacts →
	Strong evidence “The VSB Group is headquartered in Dresden and is one of the leading full-service providers in the field of renewable energy.” Source: RevenueBase Database · checked Sep 17, 2026
24	Manage NOW	Partial evidence	Munich, GermanyHQ checked Sep 17, 2026	1,001-5,000	423 contacts →
	Partial evidence “In today’s fast-moving business environment, companies often grow faster than their IT.” Source: RevenueBase Database · checked Sep 17, 2026
25	Baywa R.E. Global	Indirect evidence	Munich, GermanyHQ checked Sep 17, 2026	1,001-5,000	415 contacts →
	Indirect evidence “At BayWa r.e.” Source: RevenueBase Database · checked Sep 17, 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: renewable energy IT service providers. 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 renewable energy IT service providers.
Partial evidence: Its own public description names part of renewable energy IT service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy IT service providers. 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 3,257 renewable energy IT service providers based in Germany

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Renewable energy IT service providers based in Germany at a glance

As of Sep 17, 2026

32.8%Verified-email coverage

22.0Average contacts per company

11-50Median size (employees)

6.5%Largest-city concentration · Berlin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,542

11-50

1,070

51-200

392

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 3,257 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 renewable energy IT service providers, 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 “renewable energy IT service providers”. 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 renewable energy IT service providers), 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 renewable energy IT service providers, 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, 23,516 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 17, 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.

Renewable energy IT service providers by metro

Renewable energy IT service providers in Berlin212
Renewable energy IT service providers in Hamburg148
Renewable energy IT service providers in Dusseldorf64
Renewable energy IT service providers in Munchen64
Renewable energy IT service providers in Munich54
Renewable energy IT service providers in Koln41
Renewable energy IT service providers in Bremen40
Renewable energy IT service providers in Frankfurt Am Main33
Renewable energy IT service providers in Stuttgart33
Renewable energy IT service providers in Leipzig31
Renewable energy IT service providers in Hannover28
Renewable energy IT service providers in Dresden26
Renewable energy IT service providers in Essen25

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 renewable energy IT service providers, 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 renewable energy IT service providers are there based in Germany?

RevenueBase identified 3,257 renewable energy IT service providers 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?

NTT Data Business Solutions, headquartered in Bielefeld, tops this list with the largest team on record.

Which city has the most renewable energy IT service providers?

Berlin leads with 212 headquartered companies, followed by Hamburg (148) and Dusseldorf (64).

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 23,516 verified decision-maker contacts tracked across these 3,257 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 17, 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.