Company lists · Data refreshed September 2026

Top 8 Energy storage integration companies based in Japan

RevenueBase identified 41 company matches for energy storage integration companies associated with Japan as of September 2026 and tracks 289 professional contacts across them, including 101 with verified work emails. Tokyo is the largest hub.

This list covers company matches for energy storage integration companies associated with Japan, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 16, 2026 How this list was built
41Companies
289Contacts tracked
101Verified emails
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The 8 largest energy storage integration companies based in Japan

Ranked by team size
Top 8 of 41 company matches for energy storage integration companies based in Japan, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMinato, JapanHQ recorded Sep 16, 202651-200117 contacts →

Exact match

“PowerX pioneers renewable energy solutions by providing advanced BESS, ultrafast EV chargers, and the world's first Battery Tankers.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2Exact matchTokyo, JapanHQ recorded Sep 16, 202611-5028 contacts →

Exact match

“Manoa Energy is a Brawn Capital affiliate entity, and a developer, owner and operator of High Voltage and Extra High Voltage BESS project in Japan, with a pipeline of c.1GW of…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3Exact matchBunkyo, JapanHQ recorded Sep 16, 202651-20010 contacts →

Exact match

“With our energy storage solutions and energy management systems, we provide services to large scale power consumers to reduce fuel and carbon emissions, monetise existing assets…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4Exact match港区, JapanHQ recorded Sep 16, 202611-509 contacts →

Exact match

“Greenphard Energy’s Business Greenphard Energy is a fast-growing startup based in Japan, building the next generation of energy management solutions for industrial and commercial…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact matchYokohama, JapanHQ recorded Sep 16, 20261-105 contacts →

Exact match

“We are looking for full stack SW engineer(Why ful stack?”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6Exact match港区, JapanHQ recorded Sep 16, 202611-504 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7Exact matchTokyo, JapanHQ recorded Sep 16, 2026201-5003 contacts →

Exact match

“Rezil is on a mission to make decarbonization effortless.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8Exact match千代田区, JapanHQ recorded Sep 16, 202611-502 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 8 of 41 energy storage integration companies based in Japan

See the full list, filter by size, metro and specialty, and access 101 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy storage integration companies based in Japan at a glance

As of Sep 16, 2026
34.9%Verified-email coverage
7.0Average contacts per company
11-50Median size (employees)
12.2%Largest-city concentration · Tokyo
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
18
51-200
7
201-500
4
501-1,000
1
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Japan, so it is reported there. Company counts and contact totals on this page are exact for Japan, over 41 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Japan whose business descriptions match “energy storage integration companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 101 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “energy storage integration companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy storage integration companies are there based in Japan?

RevenueBase identified 41 company matches for energy storage integration companies associated with Japan as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Powerx, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most energy storage integration companies?

Tokyo leads with 5 company records, followed by Jing (3) and Bunkyo (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 101 professional contacts with verified work emails tracked across these 41 companies; direct dials are available where recorded.

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 SmartSearch, 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.