Company lists · Data refreshed September 2026

Top 25 Renewable energy nonprofits based in Germany

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 186 companies tracked

RevenueBase identified 186 company matches for renewable energy nonprofits associated with Germany as of September 2026 and tracks 2,133 professional contacts across them, including 913 with verified work emails. Berlin is the largest hub.

This list covers company matches for renewable 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 September 17, 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 Sep 17, 2026 How this list was built

186Companies

2,133Contacts tracked

913Verified emails

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The 25 largest renewable energy nonprofits based in Germany

Ranked by team size

Top 25 of 186 company matches for renewable energy nonprofits based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Sonnen Gmbh	Exact match	Wildpoldsried, GermanyHQ recorded Sep 17, 2026	501-1,000	514 contacts →
	Exact match “Clean, affordable energy for all is one of the greatest challenges of our time.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Naturstrom AG	Exact match	Düsseldorf, GermanyHQ recorded Sep 17, 2026	201-500	159 contacts →
	Exact match “Gemeinsam für die Energie von morgen!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	TRAWA	Exact match	Berlin, GermanyHQ recorded Sep 17, 2026	51-200	108 contacts →
	Exact match “Make energy a driver of business success.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Notus Energy Unternehmensgruppe	Exact match	Potsdam, GermanyHQ recorded Sep 17, 2026	201-500	107 contacts →
	Exact match “Die Zukunft wird aus Wind und Sonne gemacht.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Open Energy Transition	Exact match	Berlin, GermanyHQ recorded Sep 17, 2026	51-200	47 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 · Sep 17, 2026 · View company records in RevenueBase
6	ane.energy	Exact match	Husum, GermanyHQ recorded Sep 17, 2026	51-200	44 contacts →
	Exact match “Herzlich Willkommen bei der ane.energy!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Tepto Gmbh	Exact match	Marienheide, GermanyHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “Wir bringen die Sonne in dein Leben – nachhaltig, unabhängig, fair.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Westfalenwind Gmbh	Exact match	Paderborn, GermanyHQ recorded Sep 17, 2026	51-200	41 contacts →
	Exact match “WestfalenWIND GmbH is a renewables & environment company based out of Lichtenau, North Rhine-Westphalia, Germany.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Bundesverband Erneuerbare Energie E.V. BEE	Exact match	Berlin, GermanyHQ recorded Sep 17, 2026	11-50	35 contacts →
	Exact match “Als Dachverband der Erneuerbare-Energien-Branche in Deutschland bündelt der BEE die Interessen von 55 Verbänden und Unternehmen aus den Branchen der Wind, Bio- und Solarenergie…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Access To Energy Institute	Exact match	Berlin, GermanyHQ recorded Sep 17, 2026	11-50	31 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 · Sep 17, 2026 · View company records in RevenueBase
11	Carbonfreed	Exact match	Meldorf, GermanyHQ recorded Sep 17, 2026	11-50	29 contacts →
	Exact match “We are CarbonFreed.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Pionext	Exact match	Alzey, GermanyHQ recorded Sep 17, 2026	11-50	28 contacts →
	Exact match “Mit geballter Power voran: PIONEXT vereint drei erfolgreiche Energieunternehmen aus dem Südwesten Deutschlands und setzt so im Bereich erneuerbare Energien neue Maßstäbe.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Gaia MBH	Exact match	Lambsheim, GermanyHQ recorded Sep 17, 2026	51-200	26 contacts →
	Exact match “GAIA mbH is a renewables & environment company based out of 28 Jahnstraße, Lambsheim, Rhineland-Palatinate, Germany.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Energiewerk	Exact match	Ulm, GermanyHQ recorded Sep 17, 2026	11-50	26 contacts →
	Exact match “Sonnenenergie ist unsere Leidenschaft Solarpark und Batteriespeicher Wir planen, bauen und betreiben Ihre Energielösung” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Kraftwerk Renewable Power Solutions	Exact match	Weingarten, GermanyHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “KRAFTWERK Renewable Power Solutions ist seit mehr als einem Jahrzehnt eine verlässliche Größe, wenn es um den Ausbau der erneuerbaren Energien geht: Wir haben 2010 begonnen, einen…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Juno Solar	Exact match	Werdau, GermanyHQ recorded Sep 17, 2026	51-200	22 contacts →
	Exact match “Erneuerbare Energien schützen unseren Planeten, denn für ihn gibt es nur eine Chance.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	MLK Gruppe	Exact match	Erkelenz, GermanyHQ recorded Sep 17, 2026	51-200	21 contacts →
	Exact match “Klimaschutz ist eine der wesentlichen Herausforderungen unserer Zeit.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Green Planet Projects Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “Wir - die Green Planet Projects GmbH (früher: Planet energy GmbH)- sind eine 100%ige Tochter der Green Planet Energy eG, einer der größten Energiegenossenschaften Deutschlands.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Desertec Foundation	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	1-10	18 contacts →
	Exact match “Within 6 hours deserts receive more energy from the sun than humankind consumes within a year" Based on this scientific finding, the DESERTEC Foundation promotes the widespread…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Enwelo Gmbh & Co. KG	Exact match	Steinfurt, GermanyHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “Unsere Mission ist die regionale Energiewende.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Nash Renewables	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “NASH Renewables Pioneering Software, Data & AI-Driven Solutions for the Post-Subsidy Renewable Energy Era.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	SL Naturenergie	Exact match	Gladbeck, GermanyHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “Energiewender mit Weitblick Wir wollen die Wende in Nordrhein-Westfalen gemeinsam schaffen – hin zu einem verantwortungsbewussten System der Energieversorgung, von dem wir und…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Eco2grow	Exact match	Bonn, GermanyHQ recorded Sep 17, 2026	11-50	14 contacts →
	Exact match “We help industrial SMEs procure green energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Hermann Hofmann Gruppe	Exact match	35606 Solms-niederbiel, GermanyHQ recorded Sep 17, 2026	51-200	14 contacts →
	Exact match “Hermann Hofmann Gruppe – „In der Region, für die Region“ Was uns als Gruppe ausmacht?” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Solargrün	Exact match	Saulheim, GermanyHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “Weil die Ressourcen unserer Erde endlich sind, setzen wir uns aus Überzeugung und mit Leidenschaft für den Ausbau der Solarenergie ein.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “renewable energy nonprofits”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 186 renewable energy nonprofits based in Germany

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Renewable energy nonprofits based in Germany at a glance

As of Sep 17, 2026

42.8%Verified-email coverage

11.5Average contacts per company

1-10Median size (employees)

11.8%Largest-city concentration · Berlin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 186 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 “renewable 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 913 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 September 17, 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.

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 “renewable energy nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy nonprofits are there based in Germany?

RevenueBase identified 186 company matches for renewable energy nonprofits associated with Germany as of September 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?

Sonnen Gmbh tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most renewable energy nonprofits?

Berlin leads with 22 company records, followed by Munich (9) and Dusseldorf (7).

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 913 professional contacts with verified work emails tracked across these 186 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 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 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.