Company lists · Data refreshed September 2026

Top 25 Energy storage investment firms worldwide

Name: Energy storage investment firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 4,443 companies tracked

RevenueBase identified 4,443 energy storage investment firms worldwide as of September 2026 and tracks 135,023 professional contacts across them, including 51,127 with verified work emails. The United States is the largest market and London the largest hub.

This list covers energy storage investment firms worldwide, 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 28, 2026. Country and city lists for energy storage investment firms follow the table.

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 28, 2026 86% judged on-target in blind review

4,443Companies

135,023Contacts tracked

51,127Verified emails

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The 25 largest energy storage investment firms worldwide

Ranked by team size

Top 25 of 4,443 energy storage investment firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy storage investment firms: 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	RWE	Partial evidence	Essen, GermanyHQ checked Sep 28, 2026	10001+	11,181 contacts →
	Partial evidence “RWE is leading the way to a modern energy world.” Source: RevenueBase Database · checked Sep 28, 2026
2	Nextera Energy Resources	Partial evidence	Juno Beach, FL, United StatesHQ checked Sep 28, 2026	10001+	6,221 contacts →
	Partial evidence “NextEra Energy Resources, LLC, together with its affiliated entities,("NextEra Energy Resources") is one of the largest energy infrastructure companies in North America.” Source: RevenueBase Database · checked Sep 28, 2026
3	Brookfield	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,915 contacts →
	Partial evidence “We are a leading global investment firm that invests as long-term owners on behalf of institutions and individuals worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
4	Solaredge Technologies	Partial evidence	Herzliya, IsraelHQ checked Sep 28, 2026	1,001-5,000	3,091 contacts →
	Partial evidence “SolarEdge is a global leader in smart energy technology.” Source: RevenueBase Database · checked Sep 28, 2026
5	Adani Green Energy LTD	Partial evidence	United StatesHQ checked Sep 28, 2026	1,001-5,000	3,017 contacts →
	Partial evidence “Adani Green Energy Limited (AGEL) is India’s largest renewable energy company playing a vital role in enabling the clean energy transition.” Source: RevenueBase Database · checked Sep 28, 2026
6	Greenko Group	Partial evidence	Hyderabad, IndiaHQ checked Sep 28, 2026	1,001-5,000	2,578 contacts →
	Partial evidence “Greenko, is one of the World’s leading Energy Transition and Decarbonization solutions company, with an installed Renewable Energy capacity of ~7.5 GW across Wind, Solar and Hydro…” Source: RevenueBase Database · checked Sep 28, 2026
7	Envision Energy	Partial evidence	Huangpu District, ChinaHQ checked Sep 28, 2026	1,001-5,000	1,961 contacts →
	Partial evidence “Envision Energy is a world-leading green technology company that provides renewable energy solutions for global enterprises, governments, and institutions.” Source: RevenueBase Database · checked Sep 28, 2026
8	Fluence	Strong evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,863 contacts →
	Strong evidence “To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…” Source: RevenueBase Database · checked Sep 28, 2026
9	Mitsubishi Power Americas	Indirect evidence	Lake Mary, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,859 contacts →
	Indirect evidence “Mitsubishi Power Americas is creating a future that works for people and the planet through innovative power generation technology and solutions.” Source: RevenueBase Database · checked Sep 28, 2026
10	Canadian Solar INC	Partial evidence	Kitchener, ON, CanadaHQ checked Sep 28, 2026	10001+	1,781 contacts →
	Partial evidence “Canadian Solar was founded in 2001 in Canada and is one of the world's largest solar technology and renewable energy companies.” Source: RevenueBase Database · checked Sep 28, 2026
11	Avaada Group	Partial evidence	Mumbai, IndiaHQ checked Sep 28, 2026	5,001-10,000	1,747 contacts →
	Partial evidence “Avaada Group is a diversified clean energy conglomerate focused on the global energy transition, providing solutions in renewable power generation, solar PV manufacturing, green…” Source: RevenueBase Database · checked Sep 28, 2026
12	Solv Energy	Strong evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,286 contacts →
	Strong evidence “SOLV Energy is a renewable energy solutions provider for utility solar, energy storage, and high voltage projects in North America.” Source: RevenueBase Database · checked Sep 28, 2026
13	Brookfield Renewable	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	1,001-5,000	1,163 contacts →
	Indirect evidence “Brookfield Renewable, as one of the core businesses under Brookfield Corporation, is one of the world’s largest owners, operators, and developers of renewable power, with $145…” Source: RevenueBase Database · checked Sep 28, 2026
14	Scatec ASA	Partial evidence	Oslo, NorwayHQ checked Sep 28, 2026	501-1,000	1,099 contacts →
	Partial evidence “Scatec is a leading renewable energy solutions provider, accelerating access to reliable and affordable clean energy in emerging markets.” Source: RevenueBase Database · checked Sep 28, 2026
15	Masdar ABU Dhabi Future Energy Company	Partial evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 28, 2026	501-1,000	1,026 contacts →
	Partial evidence “Established in 2006, Masdar is a global clean energy leader, transforming how the world produces and consumes energy through bold innovation and commercial excellence.” Source: RevenueBase Database · checked Sep 28, 2026
16	CTG Brasil	Partial evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	501-1,000	988 contacts →
	Partial evidence “Na CTG Brasil, trabalhamos por um único propósito: desenvolver o mundo com energia limpa em larga escala.” Source: RevenueBase Database · checked Sep 28, 2026
17	Recurrent Energy	Strong evidence	Austin, United StatesHQ checked Sep 28, 2026	501-1,000	931 contacts →
	Strong evidence “Recurrent Energy, a subsidiary of Canadian Solar Inc, is one of the world's largest and most geographically diversified utility-scale solar and energy storage project development…” Source: RevenueBase Database · checked Sep 28, 2026
18	Zelestra	Indirect evidence	SpainHQ checked Sep 28, 2026	501-1,000	929 contacts →
	Indirect evidence “At Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.” Source: RevenueBase Database · checked Sep 28, 2026
19	General Atlantic	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	820 contacts →
	Indirect evidence “General Atlantic is a leading global investor with more than four and a half decades of experience providing capital and strategic support to over 830 companies throughout its…” Source: RevenueBase Database · checked Sep 28, 2026
20	Form Energy	Partial evidence	Somerville, MA, United StatesHQ checked Sep 28, 2026	501-1,000	807 contacts →
	Partial evidence “Form Energy is an American company driving innovation in energy technology and manufacturing.” Source: RevenueBase Database · checked Sep 28, 2026
21	Boralex INC	Partial evidence	Kingsey Falls, QC, CanadaHQ checked Sep 28, 2026	501-1,000	801 contacts →
	Partial evidence “At Boralex, we have been providing affordable renewable energy accessible to everyone for over 30 years.” Source: RevenueBase Database · checked Sep 28, 2026
22	Clearway Energy Group	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	501-1,000	795 contacts →
	Partial evidence “Clearway Energy Group’s vision is a world powered by clean energy.” Source: RevenueBase Database · checked Sep 28, 2026
23	ABO Energy	Partial evidence	Wiesbaden, GermanyHQ checked Sep 28, 2026	1,001-5,000	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 28, 2026
24	Juwi Group	Partial evidence	Wörrstadt, GermanyHQ checked Sep 28, 2026	1,001-5,000	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 28, 2026
25	IB Vogt Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 28, 2026	501-1,000	784 contacts →
	Indirect evidence “ib vogt is firmly committed to supporting the decarbonisation of the global electricity sector.” Source: RevenueBase Database · checked Sep 28, 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: energy storage investment firms. 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 storage investment firms.
Partial evidence: Its own public description names part of energy storage investment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy storage investment firms. 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 4,443 energy storage investment firms worldwide

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Energy storage investment firms worldwide at a glance

As of Sep 28, 2026

37.9%Verified-email coverage

30.4Average contacts per company

11-50Median size (employees)

4.6%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,865

11-50

1,442

51-200

619

201-500

246

501-1,000

125

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 storage investment firms, 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.
Coverage: Every country. Country and city lists for energy storage investment firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “energy storage investment firms”. 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 storage investment firms), 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 storage investment firms, and records with no verified work email.
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, 51,127 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 28, 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 storage investment firms by location

30 lists · largest first

Every Energy storage investment firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 storage investment firms, 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 storage investment firms are there worldwide?

RevenueBase identified 4,443 energy storage investment firms worldwide 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?

RWE, headquartered in Essen, tops this list with the largest team on record.

Which country has the most energy storage investment firms?

The United States leads with 984 companies, followed by the United Kingdom (351) and China (327). Every energy storage investment firms list by country and city is linked on this page.

Which city has the most energy storage investment firms?

London leads with 204 headquartered companies, followed by New York (110) and Houston (81).

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 51,127 verified decision-maker contacts tracked across these 4,443 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 28, 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.