Company lists · Data refreshed September 2026

Top 25 Energy aggregators based in Germany

RevenueBase identified 323 energy aggregators headquartered in Germany as of September 2026 and tracks 5,494 professional contacts across them, including 2,193 with verified work emails. Berlin is the largest hub.

This list covers energy aggregators 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
323Companies
5,494Contacts tracked
2,193Verified emails
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The 25 largest energy aggregators based in Germany

Ranked by team size
Top 25 of 323 energy aggregators 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 energy aggregators: 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
1Partial evidenceHamburg, GermanyHQ checked Sep 16, 20261,001-5,000897 contacts →

Partial evidence

“1KOMMA5° wurde gegründet um Millionen Gebäude in Europa klimaneutral immer mit dem günstigsten Strom zu versorgen - ganz ohne fossile Energie.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceAachen, GermanyHQ checked Sep 16, 2026201-500362 contacts →

Indirect evidence

“VISIONEN VERWIRKLICHEN.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceKöln, GermanyHQ checked Sep 16, 2026201-500211 contacts →

Partial evidence

“As the operator of one of Europe’s largest Virtual Power Plants, we connect thousands of energy producers, consumers, and storage systems to form a powerful team for renewable…”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceHamburg, GermanyHQ checked Sep 16, 2026501-1,000187 contacts →

Partial evidence

“Wir sind Ihr Partner für die smarte Energiewende in der Wohnimmobilie.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceRuderting, GermanyHQ checked Sep 16, 2026201-500141 contacts →

Partial evidence

“wattline – Gemeinsam zu dauerhaft besseren Energiepreisen!”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceMunich, GermanyHQ checked Sep 16, 202651-200120 contacts →

Partial evidence

“Beyond Trading We are an energy trader and market leader for trading flexible energy systems in Europe.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceDresden, GermanyHQ checked Sep 16, 202651-200118 contacts →

Partial evidence

“Kiwigrid ist das IoT-Unternehmen für Energiemanagement und Energieoptimierung.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceHamburg, GermanyHQ checked Sep 16, 202651-200112 contacts →

Partial evidence

“Der Energieanbieter Rabot Energy macht es für jeden möglich, unkompliziert aktiver Teil der Energiewende zu werden.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceBerlin, GermanyHQ checked Sep 16, 202651-200108 contacts →

Partial evidence

“Make energy a driver of business success.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceLeipzig, GermanyHQ checked Sep 16, 202651-200107 contacts →

Partial evidence

“Designing the energy market of the future together Within our multifaceted and committed team, we are actively involved in the energy turnaround with a high degree of creativeness.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceOffenburg, GermanyHQ checked Sep 16, 2026201-50088 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceMunich, GermanyHQ checked Sep 16, 202651-20080 contacts →

Partial evidence

“ecoplanet ist die weltweite erste Software für integriertes Energiemanagement: Verbrauchssteuerung, intelligente Beschaffung und Regulatorik an einem Ort & KI-basiert optimiert.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceFreiburg Im Breisgau, GermanyHQ checked Sep 16, 202651-20078 contacts →

Partial evidence

“Vom Start Up zum Marktführer: Smarte Entscheidungen rund um Haus und Energie, dafür steht WattFox seit 2011.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceBerlin, GermanyHQ checked Sep 16, 202651-20072 contacts →

Indirect evidence

“Solandeo installiert und betreibt dort, wo sie einen konkreten Mehrwert schaffen.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceSaarlouis, GermanyHQ checked Sep 16, 202651-20071 contacts →

Partial evidence

“Als Innovationstreiber der Energiebranche ist inexogy von dem Ziel getrieben, die Weichen der künftigen, klimaneutralen Energiewelt zu stellen.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceStuttgart, GermanyHQ checked Sep 16, 202651-20068 contacts →

Partial evidence

“metergrid develops innovative SaaS products for specific problems of decentralized energy systems.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceBerlin, GermanyHQ checked Sep 16, 202651-20056 contacts →

Indirect evidence

“CO2 emissions in the real estate sector must be reduced quickly.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceGröbenzell, GermanyHQ checked Sep 16, 202651-20055 contacts →

Partial evidence

“E-Smart: Richtungsweisende Lösungen für einen smarten und günstigen Energieeinkauf.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceEssen, GermanyHQ checked Sep 16, 202651-20054 contacts →

Indirect evidence

“ESFORIN SE is the independent market leader and pioneer in flexibility marketing and cross-market optimisation in Europe.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceEssen, GermanyHQ checked Sep 16, 202611-5054 contacts →

Partial evidence

“E.ON One is an ecosystem of innovative energy software scale-ups accelerating the energy transition together through digitalisation.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceOsnabrück, GermanyHQ checked Sep 16, 202651-20052 contacts →

Indirect evidence

“smartOPTIMO wurde 2009 von den Stadtwerken Münster und Osnabrück gegründet und ist eines der führenden Stadtwerke-Netzwerke Deutschlands.”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceBerlin, GermanyHQ checked Sep 16, 202651-20046 contacts →

Partial evidence

“Ostrom is a Certified B Corp™ digital energy management platform based in Berlin that makes green electricity affordable and straightforward for households in Germany.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceBruchsal, GermanyHQ checked Sep 16, 202651-20044 contacts →

Partial evidence

“Wir bei Enoplan haben es uns zur Aufgabe gemacht, Unternehmen beim Thema Energie Transparenz und Sicherheit zu geben.”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceBerlin, GermanyHQ checked Sep 16, 202651-20042 contacts →

Partial evidence

“Lumenaza GmbH is a Berlin-based company that develops solutions driving the digitalization of the energy transition, enabling both individuals and businesses to benefit from the…”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceBerlin, GermanyHQ checked Sep 16, 202611-5039 contacts →

Indirect evidence

“Frequenz' autonomous mind platform revolutionizes the way the world manages, stores and trades power.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 323 energy aggregators based in Germany

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Energy aggregators based in Germany at a glance

As of Sep 16, 2026
39.9%Verified-email coverage
17.0Average contacts per company
1-10Median size (employees)
9.9%Largest-city concentration · Berlin
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
168
11-50
99
51-200
41
201-500
4
501-1,000
3
1,001-5,000
2
5,001-10,000
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 323 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 energy aggregators, 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 “energy aggregators”. 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 energy aggregators), 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 energy aggregators, 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, 2,193 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.

Energy aggregators by metro

  • Energy aggregators in Berlin32

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 energy aggregators, 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 energy aggregators are there based in Germany?

RevenueBase identified 323 energy aggregators 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?

1komma5, headquartered in Hamburg, tops this list with the largest team on record.

Which city has the most energy aggregators?

Berlin leads with 32 headquartered companies, followed by Hamburg (21) and Munchen (10).

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 2,193 verified decision-maker contacts tracked across these 323 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.