Company lists · Data refreshed September 2026

Top 25 Cooperative electricity suppliers based in Germany

RevenueBase identified 132 cooperative electricity suppliers headquartered in Germany as of September 2026 and tracks 1,175 professional contacts across them, including 554 with verified work emails. Berlin is the largest hub.

This list covers cooperative electricity suppliers 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 19, 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 19, 2026 86% judged on-target in blind review
132Companies
1,175Contacts tracked
554Verified emails
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The 25 largest cooperative electricity suppliers based in Germany

Ranked by team size
Top 25 of 132 cooperative electricity suppliers based in Germany, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to cooperative electricity suppliers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceRuderting, GermanyHQ checked Sep 19, 2026201-500141 contacts →

Indirect evidence

“wattline – Gemeinsam zu dauerhaft besseren Energiepreisen!”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceStadt Hamburg, GermanyHQ checked Sep 19, 2026201-500122 contacts →

Indirect evidence

“Wir von Green Planet Energy (bis 2021 Greenpeace Energy) haben ein klares Ziel: die Energiewende, also 100 % erneuerbare Energien.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceItzehoe, GermanyHQ checked Sep 19, 2026201-50097 contacts →

Indirect evidence

“Die Prokon Regenerative Energien eG ist mit rund Mitgliedern eine der größten Energiegenossenschaften Europas.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceSchwerin, GermanyHQ checked Sep 19, 2026501-1,00092 contacts →

Indirect evidence

“Die Schweriner WEMAG AG ist ein bundesweit aktiver Öko-Energieversorger und Telekommunikationsdienstleister mit regionalen Wurzeln und Stromnetzbetrieb in Mecklenburg-Vorpommern…”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceOffenburg, GermanyHQ checked Sep 19, 2026201-50088 contacts →

Indirect evidence

“e.optimum is Germany's largest independent energy purchasing association!”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceSchönau Im Schwarzwald, GermanyHQ checked Sep 19, 2026201-50084 contacts →

Indirect evidence

“Gemeinsam was bewegen!”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceKempten (allgäu), GermanyHQ checked Sep 19, 202651-20065 contacts →

Indirect evidence

“Allgäuer Überlandwerk (AÜW) – Energie mit Mehrwert Als einer der innovativsten Energieversorger Bayerns setzen wir konsequent auf eine zukunftsfähige und ökologische…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceHeidelberg, GermanyHQ checked Sep 19, 202611-5041 contacts →

Indirect evidence

“Wir ermöglichen Menschen, die Energiewende in Gemeinschaft umzusetzen.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceLülsfeld, GermanyHQ checked Sep 19, 202651-20023 contacts →

Indirect evidence

“Die ÜZ Mainfranken ist ein echtes Energiebündel!”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceOlpe, GermanyHQ checked Sep 19, 202651-20022 contacts →

Indirect evidence

“Wir sind BIGGE ENERGIE.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceRatingen, GermanyHQ checked Sep 19, 202611-5021 contacts →

Indirect evidence

“Die Quantum GmbH hat ihren Sitz in Ratingen und ist eine 2007 von Stadtwerken gegründete Beschaffungskooperation für Energie.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceHoehenkirchen (munich), GermanyHQ checked Sep 19, 202611-5016 contacts →

Partial evidence

“We are a service cooperative in the field of renewable energy.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceGeislingen, GermanyHQ checked Sep 19, 2026201-50012 contacts →

Indirect evidence

“Das Albwerk ist der Ansprechpartner in der Region, wenn es um das Thema Energie geht.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceEnnigerloh, GermanyHQ checked Sep 19, 202651-20011 contacts →

Indirect evidence

“Vertrauen durch Leistung”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceMünchen, GermanyHQ checked Sep 19, 202611-5010 contacts →

Indirect evidence

“Isarwatt – genossenschaftlicher Partner für klimafreundliche Energielösungen Wir planen, realisieren und betreiben Mieterstrom-Projekte in und um München, sowohl im Neubau als…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceLottstetten, GermanyHQ checked Sep 19, 20261-1010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceHallbergmoos, GermanyHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“KOS Energie GmbH is a company based out of Hallbergmoos, Bavaria, Germany.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceKarlsruhe, GermanyHQ checked Sep 19, 20261-109 contacts →

Indirect evidence

“Als ein Team Klimaschutzbewegter sind wir davon überzeugt: Die Energiewende geht uns alle etwas an, und gemeinsam können wir das schaffen – dezentral, vor Ort und in den Händen…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceBorken, GermanyHQ checked Sep 19, 2026201-5009 contacts →

Indirect evidence

“Wir, die Agri V Raiffeisen eG, sind eine Agrarhandels- und Dienstleistungsgenossenschaft mit 360 Mitarbeitenden.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceNümbrecht, GermanyHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“Wer wir sind: Die GWN ist zu 100% im Besitz der Gemeinde Nümbrecht.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceBerlin, GermanyHQ checked Sep 19, 20261-108 contacts →

Indirect evidence

“Wir sind der gemeinnützige Energieanbieter, der für aktiven Verbraucherschutz sorgt.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceStuttgart, GermanyHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“Wir sind ein aktives Mitglied der genossenschaftlichen Familie und leben genossenschaftliche Werte -Wir sind ein verlässlicher Partner und an langfristigen Beziehungen…”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceSchrobenhausen, GermanyHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

“DEMOKRATISCH, UNABHÄNGIG UND REGIONAL - DAS IST UNSERE ENERGIE!”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceMellrichstadt, GermanyHQ checked Sep 19, 2026201-5006 contacts →

Indirect evidence

“Als 100% kommunales Unternehmen, also ein Unternehmen der Bürger der Rhön, versorgen wir als Netzbetreiber die rund Einwohner in unseren Gesellschaftergemeinden, als…”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceKöln, GermanyHQ checked Sep 19, 202651-2006 contacts →

Indirect evidence

“Die Energiegewinner eG ist ein demokratisches Unternehmen.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 132 cooperative electricity suppliers based in Germany

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Cooperative electricity suppliers based in Germany at a glance

As of Sep 19, 2026
47.1%Verified-email coverage
8.9Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · Berlin
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
89
11-50
24
51-200
6
201-500
8
501-1,000
1

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 132 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 cooperative electricity suppliers, 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 “cooperative electricity suppliers”. 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 cooperative electricity suppliers), 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 cooperative electricity suppliers, 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, 554 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 19, 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 cooperative electricity suppliers, 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 cooperative electricity suppliers are there based in Germany?

RevenueBase identified 132 cooperative electricity suppliers 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?

Wattline Gmbh, headquartered in Ruderting, tops this list with the largest team on record.

Which city has the most cooperative electricity suppliers?

Berlin leads with 3 headquartered companies, followed by Bremen (3) and Stuttgart (3).

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 554 verified decision-maker contacts tracked across these 132 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 19, 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.