Company lists · Data refreshed September 2026
Top 25 Solar energy law firms based in Germany
RevenueBase identified 152 solar energy law firms headquartered in Germany as of September 2026 and tracks 688 professional contacts across them, including 233 with verified work emails. Berlin is the largest hub.
This list covers solar energy law firms 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.
The 25 largest solar energy law firms based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 27 contacts → | ||||
Strong evidence “maxx-solar & energie, your specialist for photovoltaic plants in Central Germany Since foundation of maxx-solar in 2008, we have become specialist in solar energy production for…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 26 contacts → | ||||
Indirect evidence “Wir bei Faber Solartechnik bieten Ihnen eine ökonomisch und ökologisch attraktive Verwendung der bisher ungenutzten Dach, Park- oder Grundflächen Ihres Betriebs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 24 contacts → | ||||
Partial evidence “actensys GmbH - active energy systems steht für innovative Energielösungen mit Nachhaltigkeit.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 24 contacts → | ||||
Indirect evidence “ACHE Engineering GmbH is a renewables company based out of Germany.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 22 contacts → | ||||
Indirect evidence “Willkommen bei den #solarisierern, Ihren Experten in Sachen Photovoltaik!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 17 contacts → | ||||
Partial evidence “Der Solarteur bringt Solar auf Ihr Dach!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 17 contacts → | ||||
Strong evidence “Highly specialised law firm in renewable energy matters since 2012.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 15 contacts → | ||||
Partial evidence “Rosin Büdenbender ist eine auf Energierecht spezialisierte Kanzlei mit Sitz in Essen.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 contacts → | ||||
Indirect evidence “Wenn es um Photovoltaik geht, sind wir für Sie der passende Ansprechpartner.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 contacts → | ||||
Indirect evidence “Weil die Ressourcen unserer Erde endlich sind, setzen wir uns aus Überzeugung und mit Leidenschaft für den Ausbau der Solarenergie ein.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 contacts → | ||||
Strong evidence “AssmannPeiffer advises companies throughout Germany on energy law issues, in particular energy suppliers, municipal utilities, network operators, municipalities and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 11 contacts → | ||||
Partial evidence “RITTER GENT COLLEGEN ist eine bundesweit tätige Kanzlei, die sich auf die Beratung von Industrieunternehmen im Energie, Umwelt, und Klimarecht spezialisiert hat.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 11 contacts → | ||||
Partial evidence “Immobilienrecht Gesellschaftsrecht / Wirtschaftsrecht Öffentliches Recht Recht der erneuerbaren Energien „Wir machen Ihr Projekt zu unserem Projekt.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 11 contacts → | ||||
Partial evidence “revotec energy ist ein führender Anbieter von Solaranlagen in Baden-Württemberg installiert auf Industrie- und Gewerbeimmobilien sowie Gebäuden von Kommunen und Vereinen.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 contacts → | ||||
Indirect evidence “VOLTARO ist eine führende Photovoltaik-Boutique und spezialisierter Dienstleister für ganzheitliche PV-Lösungen, der Gewerbeimmobilien von der Beratung über die Projektsteuerung…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 9 contacts → | ||||
Indirect evidence “Wir sind Ihr auf Photovoltaik spezialisierter Full-Service-Dienstleister.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 contacts → | ||||
Partial evidence “Die Osnatech.solar GmbH aus Bissendorf bei Osnabrück ist seit mehr als 10 Jahren das Team für private und gewerbliche Photovoltaik-Anlagen – mit Expertenwissen im Leichtbau-PV…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Partial evidence “Willkommen bei der PROMETHEUS Rechtsanwaltsgesellschaft, Ihrem Partner mit besonderem Schwerpunkt auf Erneuerbaren Energien und langjähriger Erfahrung im Verwaltungs, Zivil- und…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Partial evidence “Ikert-Tharun | Wähling und Partner Rechtsanwälte ist eine in Meißen ansässige Kanzlei mit Spezialisierung auf rechtliche Fragen rund um Erneuerbare Energien.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 8 contacts → | ||||
Indirect evidence “Seit 22 Jahren beraten wir unsere Kunden objektiv und mit großem fachlichen Know-how.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Partial evidence “Die REA Firmengruppe ist ein regional agierendes Ingenieurbüro für Erneuerbare Energien mit Sitz in Düren.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 contacts → | ||||
Indirect evidence “WIR SIND IHR KOMPETENTER PARTNER FÜR SOLARANLAGEN!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “Die Weiss & Müller Rechtsanwaltsgesellschaft mbH ist eine bundesweit tätige Beratungseinheit mit Sitz in Berlin und Stuttgart, die auf umweltrechtliche Beratung spezialisiert ist.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Partial evidence “Die SolarWind Projekt GmbH (SWP) ist ein Ingenieurbüro für Erneuerbare Energien.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Partial evidence “Der Solarenergie-Förderverein (SFV) setzt sich für eine schnellstmögliche, nachhaltige Energiewende ein - dezentral und bürgernah.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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 energy law firms. 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 energy law firms.
- Partial evidence
- Its own public description names part of solar energy law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name solar energy law firms. 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 152 solar energy law firms based in Germany
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Solar energy law firms based in Germany at a glance
As of Sep 29, 2026Companies by employee count
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 152 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 energy law firms, 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 energy law firms”. 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 energy law firms), 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 energy law firms, 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, 233 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.
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 energy law firms, 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 energy law firms are there based in Germany?
RevenueBase identified 152 solar energy law firms 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?
Maxx Solar & Energie Gmbh & Co. KG, headquartered in Waltershausen, tops this list with the largest team on record.
Which city has the most solar energy law firms?
Berlin leads with 16 headquartered companies, followed by Munich (7) and Essen (4).
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 233 verified decision-maker contacts tracked across these 152 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.
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