Company lists · Data refreshed September 2026
Top 25 Energy startups based in Germany
RevenueBase identified 966 energy startups headquartered in Germany as of September 2026 and tracks 84,163 professional contacts across them, including 37,452 with verified work emails. Berlin is the largest hub.
This list covers energy startups 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 15, 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 energy startups based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 46,587 contacts → | ||||
Partial evidence “Siemens Energy is one of the world’s leading energy technology companies.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 2 | 11,181 contacts → | ||||
Partial evidence “RWE is leading the way to a modern energy world.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,242 contacts → | ||||
Partial evidence “Enpal is Europe's leading new energy company.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 4 | 897 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 15, 2026Thanks. The Data Team will review it. | |||||
| 5 | 894 contacts → | ||||
Partial evidence “The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany is the largest solar research institute in Europe.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 6 | 785 contacts → | ||||
Partial evidence “Founded in 1996, ABO Energy (fomerly known as ABO Wind) is among Europe’s leading developers of renewable energy projects.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 7 | 785 contacts → | ||||
Partial evidence “For 30 years, we have been one of the leading specialists in renewable energies, offering complete project development and other services related to the planning, construction…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 8 | 784 contacts → | ||||
Indirect evidence “ib vogt is firmly committed to supporting the decarbonisation of the global electricity sector.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 9 | 565 contacts → | ||||
Partial evidence “Q ENERGY is Europe’s 360° green energy company.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 10 | 514 contacts → | ||||
Partial evidence “Clean, affordable energy for all is one of the greatest challenges of our time.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 11 | 456 contacts → | ||||
Partial evidence “Als Energieparkentwickler plant und baut, betreibt und verkauft die UKA-Gruppe Wind- und Photovoltaikparks, ergänzt durch Batteriespeicher.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 12 | 415 contacts → | ||||
Indirect evidence “At BayWa r.e.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 13 | 407 contacts → | ||||
Indirect evidence “We are one of the world's leading developers and operators (IRPP) of wind and solar farms.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 14 | 395 contacts → | ||||
Partial evidence “Iqony makes green energy feasible.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 15 | 347 contacts → | ||||
Partial evidence “A company with a profile The German Energy Supply GmbH Since 2009, Deutsche Energieversorgung GmbH in Leipzig has been developing and producing intelligent power storage systems…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 16 | 336 contacts → | ||||
Indirect evidence “GOLDBECK SOLAR is an internationally leading company specializing in the turnkey construction of industrial, commercial, and large‑scale photovoltaic systems.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 17 | 334 contacts → | ||||
Indirect evidence “Mit über installierten Anlagen und einem umfassenden Netzwerk aus Fachkräften sorgen wir jedes Jahr für circa 70 Millionen € Stromersparnis bei unseren Kundinnen und Kunden.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 18 | 324 contacts → | ||||
Partial evidence “Der Energiesektor durchläuft einen noch nie dagewesenen Transformationsprozess – und mit ihm auch die LEAG als Ostdeutschlands größter Energieproduzent.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 19 | 211 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 15, 2026Thanks. The Data Team will review it. | |||||
| 20 | 210 contacts → | ||||
Partial evidence “MaxSolar is a leading provider of integrated, innovative energy solutions for companies and municipalities.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 21 | 199 contacts → | ||||
Indirect evidence “The PNE Group operates internationally and is one of the most experienced developers of wind farm projects.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 22 | 197 contacts → | ||||
Indirect evidence “greentech is an integrated solar and storage specialist: The areas of business include project development, design, construction, and operational management of photovoltaic (PV)…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 23 | 196 contacts → | ||||
Partial evidence “IBC SOLAR ist ein führender globaler Anbieter von Lösungen und Dienstleistungen im Bereich Photovoltaik und Energiespeicher.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 24 | 189 contacts → | ||||
Partial evidence “About us We have been active in the renewable energy market since 1997.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 25 | 159 contacts → | ||||
Partial evidence “Gemeinsam für die Energie von morgen!” Source: RevenueBase Database · checked Sep 15, 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: energy startups. 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 energy startups.
- Partial evidence
- Its own public description names part of energy startups, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy startups. 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 966 energy startups based in Germany
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Energy startups based in Germany at a glance
As of Sep 15, 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 966 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 startups, 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 startups”. 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 startups), 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 startups, 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, 37,452 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 15, 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 startups by metro
- Energy startups in Berlin86
- Energy startups in Hamburg40
- Energy startups in Munich37
- Energy startups in Dusseldorf28
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 startups, 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 startups are there based in Germany?
RevenueBase identified 966 energy startups 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?
Siemens Energy, headquartered in Munich, tops this list with the largest team on record.
Which city has the most energy startups?
Berlin leads with 86 headquartered companies, followed by Hamburg (40) and Munich (37).
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 37,452 verified decision-maker contacts tracked across these 966 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 15, 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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