Company lists · Data refreshed September 2026

Top 25 Solar installation and maintenance companies based in Germany

Name: Solar installation and maintenance companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 1,289 companies tracked

RevenueBase identified 1,289 solar installation and maintenance companies headquartered in Germany as of September 2026 and tracks 7,627 professional contacts across them, including 2,459 with verified work emails. Berlin is the largest hub.

This list covers solar installation and maintenance 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 16, 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 16, 2026 86% judged on-target in blind review

1,289Companies

7,627Contacts tracked

2,459Verified emails

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The 25 largest solar installation and maintenance companies based in Germany

Ranked by team size

Top 25 of 1,289 solar installation and maintenance companies based in Germany, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to solar installation and maintenance 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	Goldbeck Solar Group	Partial evidence	Hirschberg An Der Bergstraße, GermanyHQ checked Sep 16, 2026	501-1,000	336 contacts →
	Partial evidence “GOLDBECK SOLAR is an internationally leading company specializing in the turnkey construction of industrial, commercial, and large‑scale photovoltaic systems.” Source: RevenueBase Database · checked Sep 16, 2026
2	Energiekonzepte Deutschland Gmbh	Indirect evidence	Leipzig, GermanyHQ checked Sep 16, 2026	201-500	334 contacts →
	Indirect evidence “Mit über installierten Anlagen und einem umfassenden Netzwerk aus Fachkräften sorgen wir jedes Jahr für circa 70 Millionen € Stromersparnis bei unseren Kundinnen und Kunden.” Source: RevenueBase Database · checked Sep 16, 2026
3	Enerparc AG	Indirect evidence	Hamburg, GermanyHQ checked Sep 16, 2026	201-500	305 contacts →
	Indirect evidence “ENERPARC AG is an internationally oriented specialist for all business related to photovoltaics, whether it's in a technical or commercial role, pure consultation or…” Source: RevenueBase Database · checked Sep 16, 2026
4	Krannich Solar Group	Partial evidence	Weil Der Stadt / Hausen, GermanyHQ checked Sep 16, 2026	1,001-5,000	236 contacts →
	Partial evidence “Since 1995, Krannich Solar has been a strong partner for photovoltaic installers and offers everything that drives the energy revolution: sound advice, effective logistics and one…” Source: RevenueBase Database · checked Sep 16, 2026
5	Belectric Gmbh	Partial evidence	Kolitzheim, GermanyHQ checked Sep 16, 2026	501-1,000	211 contacts →
	Partial evidence “BELECTRIC is one of Europe's leading EPC service providers in the development, construction and operation of solar power plants.” Source: RevenueBase Database · checked Sep 16, 2026
6	Energieversum EIN Unternehmen DER Enbw Gruppe	Indirect evidence	Steinhagen, GermanyHQ checked Sep 16, 2026	201-500	162 contacts →
	Indirect evidence “Mit Premium-Photovoltaikanlagen und Wärmepumpen im Komplettpaket erleichtern wir seit 2010 Privat- und Gewerbekunden bundesweit den Umstieg auf eine unabhängige, nachhaltige…” Source: RevenueBase Database · checked Sep 16, 2026
7	Memodo Gmbh	Indirect evidence	München, GermanyHQ checked Sep 16, 2026	201-500	147 contacts →
	Indirect evidence “Zusammen mit unseren starken Partnern und der neusten Technologie gestalten wir die Energiezukunft.” Source: RevenueBase Database · checked Sep 16, 2026
8	ENTER	Indirect evidence	Berlin, GermanyHQ checked Sep 16, 2026	51-200	136 contacts →
	Indirect evidence “Enter ist ein bundesweit tätiger Anbieter von Wärmepumpen, Solaranlagen (Photovoltaik) mit Stromspeicher, Wallboxen und Energiemanagement-Systemen für Eigenheimbesitzer in…” Source: RevenueBase Database · checked Sep 16, 2026
9	Enviria	Indirect evidence	Frankfurt, GermanyHQ checked Sep 16, 2026	51-200	132 contacts →
	Indirect evidence “Since 2017, ENVIRIA develops comprehensive, integrated energy solutions for commercial and industrial clients.” Source: RevenueBase Database · checked Sep 16, 2026
10	Reonic	Indirect evidence	Berlin, GermanyHQ checked Sep 16, 2026	51-200	113 contacts →
	Indirect evidence “Reonic enables renewable energy installers to sell, design and install systems better and faster than ever before.” Source: RevenueBase Database · checked Sep 16, 2026
11	Baywa R.E. Solar Distribution DE	Indirect evidence	Tübingen, GermanyHQ checked Sep 16, 2026	201-500	91 contacts →
	Indirect evidence “Strom und Sonne: Das gehört für uns fest zusammen.” Source: RevenueBase Database · checked Sep 16, 2026
12	Klarsolar Gmbh	Indirect evidence	Heidelberg, GermanyHQ checked Sep 16, 2026	51-200	90 contacts →
	Indirect evidence “klarsolar is a Germany based company which has its focus in renewable energy, photovoltaic sytems in particular.” Source: RevenueBase Database · checked Sep 16, 2026
13	Centroplan Gmbh	Partial evidence	Baesweiler, GermanyHQ checked Sep 16, 2026	51-200	66 contacts →
	Partial evidence “Innovative solar solutions for the sustainable future of your company.” Source: RevenueBase Database · checked Sep 16, 2026
14	WI Energy Gmbh	Indirect evidence	Trier, GermanyHQ checked Sep 16, 2026	51-200	55 contacts →
	Indirect evidence “Alle sprechen von der Energiewende.” Source: RevenueBase Database · checked Sep 16, 2026
15	Elen Energy	Strong evidence	Muelheim An Der Ruhr, GermanyHQ checked Sep 16, 2026	51-200	53 contacts →
	Strong evidence “Elen is a company specializing in offering design services for solar energy solutions, energy storage, electrical installation, technical advice, and solutions in energy…” Source: RevenueBase Database · checked Sep 16, 2026
16	Febesol Gmbh	Indirect evidence	Sankt Leon-rot, GermanyHQ checked Sep 16, 2026	51-200	52 contacts →
	Indirect evidence “FEBESOL macht im Jahr rund 2.500 Privathaushalte unabhängig(er) von externen Stromversorgern und hilft seinen Kunden mit maßgeschneiderten Photovoltaikanlagen Geld zu sparen.” Source: RevenueBase Database · checked Sep 16, 2026
17	Lichtblick Eaas Gmbh	Indirect evidence	Cologne, GermanyHQ checked Sep 16, 2026	51-200	51 contacts →
	Indirect evidence “Wir, LichtBlick Energy-as-a-Service, eine hunderprozentige Tochter der LichtBlick SE, entwickeln und realisieren maßgeschneiderte Energielösungen für Gewerbekunden.” Source: RevenueBase Database · checked Sep 16, 2026
18	Eigensonne	Partial evidence	Berlin, GermanyHQ checked Sep 16, 2026	201-500	49 contacts →
	Partial evidence “EIGENSONNE is the most convenient way to start producing your own solar energy.” Source: RevenueBase Database · checked Sep 16, 2026
19	Adler Solar Gmbh	Partial evidence	Bremen, GermanyHQ checked Sep 16, 2026	51-200	39 contacts →
	Partial evidence “Die ADLER Solar GmbH aus Bremen plant, baut und installiert Energielösungen.” Source: RevenueBase Database · checked Sep 16, 2026
20	Cube Concepts Gmbh	Indirect evidence	Kaarst, GermanyHQ checked Sep 16, 2026	11-50	37 contacts →
	Indirect evidence “CUBE CONCEPTS GmbH – Systementwickler für integrierte Energiesysteme Wir entwickeln und realisieren schlüsselfertige ganzheitliche Energiesysteme für Industrie- und…” Source: RevenueBase Database · checked Sep 16, 2026
21	Securenergy	Indirect evidence	Berlin, GermanyHQ checked Sep 16, 2026	11-50	36 contacts →
	Indirect evidence “Ökonomisch denken – ökologisch handeln ist unser Leitbild; nachhaltig Energie produzieren, unser Ziel.” Source: RevenueBase Database · checked Sep 16, 2026
22	RCT Solutions Gmbh	Indirect evidence	Constance, GermanyHQ checked Sep 16, 2026	51-200	36 contacts →
	Indirect evidence “RCT Solutions GmbH covers the full range of photovoltaic value chain providing customised services from FEED & owner's engineering to business & financial modeling and PV…” Source: RevenueBase Database · checked Sep 16, 2026
23	B&w Energy Gmbh & Co.Kg	Indirect evidence	Heiden, GermanyHQ checked Sep 16, 2026	51-200	35 contacts →
	Indirect evidence “Ihr Partner für erneuerbare Energiesysteme - B&W Energy GmbH & Co.” Source: RevenueBase Database · checked Sep 16, 2026
24	Bwts Energy Services Gmbh	Indirect evidence	Stäbelow, GermanyHQ checked Sep 16, 2026	51-200	35 contacts →
	Indirect evidence “Die BWTS Energy Services GmbH ist ein herstellerunabhängiger Servicedienstleister im Bereich der Erneuerbaren Energien und betreibt Niederlassungen in Stäbelow, Nordhorn und…” Source: RevenueBase Database · checked Sep 16, 2026
25	HIS Renewables Gmbh	Partial evidence	Oberzent, GermanyHQ checked Sep 16, 2026	201-500	35 contacts →
	Partial evidence “HIS makes solar projects reliable and efficient.” Source: RevenueBase Database · checked Sep 16, 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: solar installation and maintenance 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 solar installation and maintenance companies.
Partial evidence: Its own public description names part of solar installation and maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar installation and maintenance 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 1,289 solar installation and maintenance companies based in Germany

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Solar installation and maintenance companies based in Germany at a glance

As of Sep 16, 2026

32.2%Verified-email coverage

5.9Average contacts per company

1-10Median size (employees)

5.0%Largest-city concentration · Berlin

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

646

11-50

420

51-200

122

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 1,289 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 solar installation and maintenance 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 “solar installation and maintenance 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 solar installation and maintenance 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 solar installation and maintenance 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, 2,459 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 16, 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.

Solar installation and maintenance companies by metro

Solar installation and maintenance companies in Berlin64
Solar installation and maintenance companies in Hamburg25

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 solar installation and maintenance 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 solar installation and maintenance companies are there based in Germany?

RevenueBase identified 1,289 solar installation and maintenance 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?

Goldbeck Solar Group, headquartered in Hirschberg An Der Bergstrasse, tops this list with the largest team on record.

Which city has the most solar installation and maintenance companies?

Berlin leads with 64 headquartered companies, followed by Hamburg (25) 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 2,459 verified decision-maker contacts tracked across these 1,289 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 16, 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.