Company lists · Data refreshed September 2026

Top 25 Grid energy storage providers based in Germany

Name: Grid energy storage providers based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 382 companies tracked

RevenueBase identified 382 grid energy storage providers headquartered in Germany as of September 2026 and tracks 6,577 professional contacts across them, including 2,847 with verified work emails. Berlin is the largest hub.

This list covers grid energy storage providers 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

382Companies

6,577Contacts tracked

2,847Verified emails

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The 25 largest grid energy storage providers based in Germany

Ranked by team size

Top 25 of 382 grid energy storage providers 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 grid energy storage providers: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Innio Group	Partial evidence	Munich, GermanyHQ checked Sep 16, 2026	1,001-5,000	2,111 contacts →
	Partial evidence “INNIO Group is a global distributed energy solutions provider that delivers reliable, flexible, transient, decentralized, modular and efficient power.” Source: RevenueBase Database · checked Sep 16, 2026
2	Next Kraftwerke	Strong evidence	Köln, GermanyHQ checked Sep 16, 2026	201-500	211 contacts →
	Strong 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
3	Maxsolar Gmbh	Partial evidence	Traunstein, GermanyHQ checked Sep 16, 2026	201-500	210 contacts →
	Partial evidence “MaxSolar is a leading provider of integrated, innovative energy solutions for companies and municipalities.” Source: RevenueBase Database · checked Sep 16, 2026
4	Greentech	Partial evidence	Hamburg, GermanyHQ checked Sep 16, 2026	201-500	197 contacts →
	Partial 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 16, 2026
5	Tesvolt AG	Partial evidence	Lutherstadt Wittenberg, GermanyHQ checked Sep 16, 2026	201-500	158 contacts →
	Partial evidence “TESVOLT AG is a German provider and system integrator of battery storage systems for commercial, industrial, and utility-scale applications.” Source: RevenueBase Database · checked Sep 16, 2026
6	ENTER	Partial evidence	Berlin, GermanyHQ checked Sep 16, 2026	51-200	136 contacts →
	Partial evidence “Enter ist ein bundesweit tätiger Anbieter von Wärmepumpen, Solaranlagen (Photovoltaik) mit Stromspeicher, Wallboxen und Energiemanagement-Systemen für Eigenheimbesitzer in…” Source: RevenueBase Database · checked Sep 16, 2026
7	Schoenergie	Partial evidence	Föhren, GermanyHQ checked Sep 16, 2026	201-500	134 contacts →
	Partial evidence “Unabhängigkeit & Energiehoheit gewinnen, Kosten selbststimmt steuern: Schoenergie entwickelt, plant, baut und betreibt nachhaltige Energielösungen für Menschen, Unternehmen und…” Source: RevenueBase Database · checked Sep 16, 2026
8	Fenecon	Strong evidence	Iggensbach, GermanyHQ checked Sep 16, 2026	201-500	130 contacts →
	Strong evidence “FENECON is a leading manufacturer of energy storage solutions and offers systems for private households as well as for trade, industry, utility companies and vehicle manufacturers.” Source: RevenueBase Database · checked Sep 16, 2026
9	Entrix	Partial evidence	Munich, GermanyHQ checked Sep 16, 2026	51-200	120 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
10	Rabot Energy	Partial evidence	Hamburg, GermanyHQ checked Sep 16, 2026	51-200	112 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
11	SMA Altenso	Partial evidence	Niestetal, GermanyHQ checked Sep 16, 2026	51-200	102 contacts →
	Partial evidence “power for energy SMA Altenso GmbH is a wholly owned subsidiary of SMA Solar Technology AG.” Source: RevenueBase Database · checked Sep 16, 2026
12	Voltfang	Strong evidence	Aachen, GermanyHQ checked Sep 16, 2026	51-200	83 contacts →
	Strong evidence “We requalify electrical vehicle batteries after their first life in the EV into storage systems, which can store renewable energies in a sustainable way.” Source: RevenueBase Database · checked Sep 16, 2026
13	RCT Power	Strong evidence	Konstanz, GermanyHQ checked Sep 16, 2026	201-500	75 contacts →
	Strong evidence “Storage Systems rethought Storage systems designed by RCT Power make intelligent use of solar energy and enable home owners to become independent from power suppliers.” Source: RevenueBase Database · checked Sep 16, 2026
14	Stabl Energy	Indirect evidence	Munich, GermanyHQ checked Sep 16, 2026	51-200	74 contacts →
	Indirect evidence “We keep the battery on!” Source: RevenueBase Database · checked Sep 16, 2026
15	Be.Storaged Gmbh	Partial evidence	Oldenburg, GermanyHQ checked Sep 16, 2026	51-200	71 contacts →
	Partial evidence “Wir als be.storaged entwickeln und realisieren ganzheitliche Batteriespeicherlösungen - von der Projektentwicklung über Engineering und Bau bis hin zu Betrieb und Wartung…” Source: RevenueBase Database · checked Sep 16, 2026
16	Intilion	Strong evidence	Paderborn, GermanyHQ checked Sep 16, 2026	51-200	68 contacts →
	Strong evidence “INTILION delivers innovative, highly scalable and seamlessly integrable energy storage solutions for utility-scale, as well as industrial and grid applications.” Source: RevenueBase Database · checked Sep 16, 2026
17	Terra ONE	Partial evidence	Berlin, GermanyHQ checked Sep 16, 2026	11-50	61 contacts →
	Partial evidence “At Terra One, we are pioneers in driving Europe's transition to climate neutrality through cutting-edge battery storage solutions.” Source: RevenueBase Database · checked Sep 16, 2026
18	RRC Power Solutions Gmbh	Partial evidence	Homburg / Saar, GermanyHQ checked Sep 16, 2026	201-500	60 contacts →
	Partial evidence “RRC power solutions - this name stands for high reliability and innovative technology in the field of mobile energy.” Source: RevenueBase Database · checked Sep 16, 2026
19	The Mobility House Energy	Partial evidence	Munich, GermanyHQ checked Sep 16, 2026	51-200	59 contacts →
	Partial evidence “The Mobility House is shaping the future of energy and mobility.” Source: RevenueBase Database · checked Sep 16, 2026
20	ECO Stor	Indirect evidence	Kirchheim B. München, GermanyHQ checked Sep 16, 2026	51-200	58 contacts →
	Indirect evidence “Das Team der ECO STOR GmbH entwickelt, baut und betreibt deutschlandweit Batteriespeicher, die immer wieder Rekorde bei Leistung und Kapazität setzen.” Source: RevenueBase Database · checked Sep 16, 2026
21	Green Flexibility	Strong evidence	Kempten, GermanyHQ checked Sep 16, 2026	51-200	57 contacts →
	Strong evidence “As a leading expert in the energy transition, green flexibility combines in-depth knowledge and state-of-the-art battery storage technology to make the energy infrastructure of…” Source: RevenueBase Database · checked Sep 16, 2026
22	Voltstorage	Strong evidence	Munich, GermanyHQ checked Sep 16, 2026	51-200	56 contacts →
	Strong evidence “VoltStorage is an energy storage company that develops innovative products and solutions to help providers and customers maximize energy value, eliminate curtailment/waste, and…” Source: RevenueBase Database · checked Sep 16, 2026
23	Phocos	Partial evidence	Ulm, GermanyHQ checked Sep 16, 2026	51-200	56 contacts →
	Partial evidence “Phocos is one of the largest suppliers of off-grid and edge of grid power supply system components in the world.” Source: RevenueBase Database · checked Sep 16, 2026
24	CUBOS	Indirect evidence	Wolfsburg, GermanyHQ checked Sep 16, 2026	51-200	52 contacts →
	Indirect evidence “Wir sorgen für den optimalen Betrieb Ihrer Ladeinfrastruktur.” Source: RevenueBase Database · checked Sep 16, 2026
25	ESK Gmbh	Partial evidence	Dortmund, GermanyHQ checked Sep 16, 2026	11-50	41 contacts →
	Partial evidence “Als anerkanntes Engineering-Unternehmen für Energiespeicher- und Energiesystemdienstleistungen führt die ESK GmbH seit vielen Jahren nationale und internationale Projekte…” Source: RevenueBase Database · checked Sep 16, 2026

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: grid energy storage providers. 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 grid energy storage providers.
Partial evidence: Its own public description names part of grid energy storage providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid energy storage providers. 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 382 grid energy storage providers based in Germany

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Grid energy storage providers based in Germany at a glance

As of Sep 16, 2026

43.3%Verified-email coverage

17.2Average contacts per company

11-50Median size (employees)

6.8%Largest-city concentration · Berlin

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

158

11-50

137

51-200

201-500

1,001-5,000

5,001-10,000

10001+

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 382 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 grid energy storage providers, 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 “grid energy storage providers”. 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 grid energy storage providers), 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 grid energy storage providers, 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, 2,847 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.

Grid energy storage providers by metro

Grid energy storage providers in Berlin26

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 grid energy storage providers, 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 grid energy storage providers are there based in Germany?

RevenueBase identified 382 grid energy storage providers 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?

Innio Group, headquartered in Munich Germany, tops this list with the largest team on record.

Which city has the most grid energy storage providers?

Berlin leads with 26 headquartered companies, followed by Hamburg (18) and Munich (17).

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 2,847 verified decision-maker contacts tracked across these 382 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.