Company lists · Data refreshed November 2026

Top 25 Solar energy nonprofits based in Germany

RevenueBase identified 520 company matches for solar energy nonprofits associated with Germany as of November 2026 and tracks 6,123 professional contacts across them, including 2,191 with verified work emails. Berlin is the largest hub.

This list covers company matches for solar energy nonprofits associated with Germany, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
520Companies
6,123Contacts tracked
2,191Verified emails
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The 25 largest solar energy nonprofits based in Germany

Ranked by team size
Top 25 of 520 company matches for solar energy nonprofits based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchFreiburg, GermanyHQ recorded Nov 6, 20261,001-5,000950 contacts →

Exact match

“The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany is the largest solar research institute in Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchWildpoldsried, GermanyHQ recorded Nov 6, 2026501-1,000500 contacts →

Exact match

“Clean, affordable energy for all is one of the greatest challenges of our time.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBerlin, GermanyHQ recorded Nov 6, 20261,001-5,000446 contacts →

Exact match

“Gemeinsam machen wir Wohnen klimaneutral!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMunich, GermanyHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“gridX's mission is to make renewable energy accessible and affordable for all.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDüsseldorf, GermanyHQ recorded Nov 6, 2026201-500174 contacts →

Exact match

“Gemeinsam für die Energie von morgen!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-200159 contacts →

Exact match

“Reonic enables renewable energy installers to sell, design and install systems better and faster than ever before.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-200143 contacts →

Exact match

“Make energy a driver of business success.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPotsdam, GermanyHQ recorded Nov 6, 2026201-500103 contacts →

Exact match

“Die Zukunft wird aus Wind und Sonne gemacht.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“pv magazine is the leading global media platform for the solar and energy storage industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDüsseldorf, GermanyHQ recorded Nov 6, 2026201-50071 contacts →

Exact match

“Zendure is a global leader in providing reliable, affordable and accessible clean energy solutions for households worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchTrier, GermanyHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Alle sprechen von der Energiewende.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“Open Energy Transition is a nonprofit energy tech company that aims to accelerate and cost-optimize the world’s transition to sustainable, accessible and reliable energy with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHusum, GermanyHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Herzlich Willkommen bei der ane.energy!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Klimaschutz ist die größte Herausforderung unserer Zeit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSankt Leon-rot, GermanyHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“FEBESOL macht im Jahr rund 2.500 Privathaushalte unabhängig(er) von externen Stromversorgern und hilft seinen Kunden mit maßgeschneiderten Photovoltaikanlagen Geld zu sparen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“ecoligo is leading the clean energy revolution in emerging markets with solar energy solutions that generate economic and environmental returns, all financed by crowdinvestors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMarienheide, GermanyHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“Wir bringen die Sonne in dein Leben – nachhaltig, unabhängig, fair.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBerlin, GermanyHQ recorded Nov 6, 2026201-50046 contacts →

Exact match

“EIGENSONNE is the most convenient way to start producing your own solar energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPfullendorf, GermanyHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“Integrating renewable energies into the global energy mix through intelligent stand-alone systems, can help to address the energy needs of off-grid areas all over the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“Ökonomisch denken – ökologisch handeln ist unser Leitbild; nachhaltig Energie produzieren, unser Ziel.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLeipzig, GermanyHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“This channel represents the entire Green Energy company group: is the umbrella organisation for the subsidiaries, and.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchEschwege, GermanyHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Die Sunniva GmbH wurde im Jahr 2020 gegründet und hat ihren Unternehmenssitz in Eschwege, Deutschland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCologne, GermanyHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Wir gestalten verantwortungsbewusst, verlässlich und mit voller Leidenschaft die Energiezukunft mit Solarenergie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMunich, GermanyHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“MIETERSTROM, neu gedacht Entdecken Sie mit PIONIERKRAFT die einfache & profitable Mieterstrom-Alternative für kleine Mehrfamilienhäuser.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“The Access to Energy Institute (A2EI) is the first not-for-profit and collaborative research and development institute aiming to advance the solar revolution in emerging economies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 520 solar energy nonprofits based in Germany

See the full list, filter by size, metro and specialty, and access 2,191 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Solar energy nonprofits based in Germany at a glance

As of Nov 6, 2026
35.8%Verified-email coverage
11.8Average contacts per company
1-10Median size (employees)
11.5%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
254
11-50
186
51-200
45
201-500
10
501-1,000
2
1,001-5,000
5

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 520 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Germany whose business descriptions match “solar energy nonprofits” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,191 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Solar energy nonprofits by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “solar energy nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar energy nonprofits are there based in Germany?

RevenueBase identified 520 company matches for solar energy nonprofits associated with Germany as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Fraunhofer-Institut FÜR Solare Energiesysteme ISE tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most solar energy nonprofits?

Berlin leads with 60 company records, followed by Hamburg (23) and Munich (22).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,191 professional contacts with verified work emails tracked across these 520 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.