Company lists · Data refreshed September 2026
Top 25 Solar thermal energy storage companies based in Germany
RevenueBase identified 104 solar thermal energy storage companies headquartered in Germany as of September 2026 and tracks 1,179 professional contacts across them, including 424 with verified work emails. Berlin is the largest hub.
This list covers solar thermal energy storage companies 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 18, 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 solar thermal energy storage companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 347 contacts → | ||||
Strong 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 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 197 contacts → | ||||
Strong 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 18, 2026Thanks. The Data Team will review it. | |||||
| 3 | 38 contacts → | ||||
Strong evidence “KRAFTBLOCK is an energy storage system that is able to decarbonize industries like steel, glass or ceramics, food, chemicals or paper.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 4 | 35 contacts → | ||||
Strong evidence “AlphaESS was founded in 2012 and specializes in offering advanced energy storage services.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 30 contacts → | ||||
Partial evidence “Ritter XL Solar steht für Hochleistungs-Solarthermie im Großformat.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 28 contacts → | ||||
Partial evidence “Wir befreien Unternehmen von hohen Energiekosten.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 24 contacts → | ||||
Partial evidence “Energieinsel GmbH ist Ihr Spezialist für die Erzeugung und Speicherung von Solarstrom.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 24 contacts → | ||||
Strong evidence “Thermic Energy RZ GmbH is a renewables & environment company based out of 9 Abtsweg, Hirschaid, Germany.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 9 | 22 contacts → | ||||
Strong evidence “FRENELL delivers proven, cost-efficient Concentrated Solar Power (CSP) with integrated energy storage based on linear Fresnel Collectors.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 19 contacts → | ||||
Strong evidence “LUMENION develops highly competitive thermal energy storage systems which enable a dispatchable electricity and heat supply from wind and solar power generation.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 contacts → | ||||
Indirect evidence “CitrinSolar steht für hochwertige Solarthermie- und Photovoltaikanlagen sowie Wärmespeichersysteme.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 17 contacts → | ||||
Strong evidence “Startseite - Wagner Solar GmbH, Systemanbieter für thermische Solaranlagen und Photovoltaikanlagen, Stromspeicher, Montagesysteme und Energietechnik” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 15 contacts → | ||||
Strong evidence “phelas develops the solution for the energy transition: An electricity storage system that is modular, mass-produced, cost-effective and safe.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Strong evidence “ZEO SOLAR steht für eine Zukunft, in der erneuerbare Energien das Leben bereichern.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 contacts → | ||||
Partial evidence “We are changing the way how to store electrical energy.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 contacts → | ||||
Indirect evidence “Mit Photovoltaik umweltgerecht und kostengünstig Strom produzieren Wir beraten Sie umfassend, budgetgerecht und nachhaltig zu allen Themen der Photovoltaik und grünen…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 10 contacts → | ||||
Partial evidence “Energieeffiziente Warmwasser-Systeme” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Partial evidence “Die caldoa GmbH bietet effiziente Energie-/Eisspeicher- und Wärmepumpengesamtlösungen an, um maximalen Komfort bei minimalen Betriebskosten und nahezu ohne Treibhausgas-Emissionen…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Partial evidence “HPS ist weltweit führend in der Entwicklung und Produktion von integrierten Energiespeichersystemen auf Basis von grünem Wasserstoff für Gebäude.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Partial evidence “Es ist ein gutes Gefühl, mit meiner PV-Anlage mit Speicher ein Stück energetische Unabhängigkeit erlangt zu haben.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Partial evidence “Unser Ziel ist es, unseren Kunden eine thermische Solaranlage anzubieten, die nicht nur höchste Qualitätsansprüche erfüllt, sondern sich finanziell auch in einem Zeitraum von…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Partial evidence “FERESTO konzipiert, plant und realisiert kosteneffiziente Großspeicherlösungen für Unternehmen, Industrie und Energieversorger.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Partial evidence “Als Anbieter von schlüsselfertigen Photovoltaikanlagen und innovativen Energiespeichersystemen ermöglichen wir umweltfreundliche, effiziente und maßgeschneiderte Lösungen für Ihre…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Indirect evidence “Die hellosun!” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Partial evidence “Wir von next energy verstehen uns als die Architekten der Energiewende!” Source: RevenueBase Database · checked Sep 18, 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: solar thermal energy storage companies. 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 solar thermal energy storage companies.
- Partial evidence
- Its own public description names part of solar thermal energy storage companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name solar thermal energy storage companies. 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 104 solar thermal energy storage companies based in Germany
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Solar thermal energy storage companies based in Germany at a glance
As of Sep 18, 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 104 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 solar thermal energy storage companies, 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 “solar thermal energy storage companies”. 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 solar thermal energy storage companies), 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 solar thermal energy storage companies, 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, 424 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 18, 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 solar thermal energy storage companies, 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 solar thermal energy storage companies are there based in Germany?
RevenueBase identified 104 solar thermal energy storage companies 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?
Senec Gmbh, headquartered in Leipzig, tops this list with the largest team on record.
Which city has the most solar thermal energy storage companies?
Berlin leads with 7 headquartered companies, followed by Hamburg (4) and Munich (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 424 verified decision-maker contacts tracked across these 104 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 18, 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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