Company lists · Data refreshed September 2026

Top 16 Grid energy storage software based in Finland

RevenueBase identified 34 grid energy storage software headquartered in Finland as of September 2026 and tracks 794 professional contacts across them, including 318 with verified work emails and 62 with mobile numbers. Helsinki is the largest hub.

This list covers grid energy storage software headquartered in Finland, 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
34Companies
794Contacts tracked
318Verified emails
62Mobile numbers
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The 16 largest grid energy storage software based in Finland

Ranked by team size
Top 16 of 34 grid energy storage software based in Finland, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names grid energy storage software: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
EFOREPartial evidence
Espoo, FinlandHQ checked Sep 3, 202651-200119

“Founded in 1975 in Finland, Efore Telecom Finland Oy has grown from a six-person engineering office into a global energy solutions provider with five decades of expertise.”

Source: company website · checked Sep 3, 2026
2
Merus PowerStrong evidence
Ylojarvi, FinlandHQ checked Sep 3, 202651-200112

“Merus Power is a technology company headquartered in the city of Ylöjärvi, Finland where we design and manufacture innovative Finnish battery energy storage systems and power…”

Source: company website · checked Sep 3, 2026
3
Lehto Group OYJIndirect evidence
Kempele, FinlandHQ checked Sep 3, 202611-5064

“Virta päällä vihreässä siirtymässä.”

Source: company website · checked Sep 3, 2026
4
CactosStrong evidence
Kempele, FinlandHQ checked Sep 3, 202651-20062

“Cactos develops distributed energy storage systems based on batteries.”

Source: company website · checked Sep 3, 2026
5
Capalo AIIndirect evidence
Helsinki, FinlandHQ checked Sep 3, 202651-20045

“One turn-key service to trade, optimize, and operate your battery.”

Source: company website · checked Sep 3, 2026
6
IntergridPartial evidence
Helsinki, FinlandHQ checked Sep 3, 202611-5031

“Intergrid is a Helsinki-based technology company developing an Autopilot for industrial energy operations.”

Source: company website · checked Sep 3, 2026
7
SynergiPartial evidence
Helsinki, FinlandHQ checked Sep 3, 202611-5017

“Synergi provides technical aggregation of energy assets between 5kW - 5 MW with our cloud-to-cloud solution.”

Source: company website · checked Sep 3, 2026
8
Elstor OYStrong evidence
Lappeenranta, FinlandHQ checked Sep 3, 202611-5017

“With its power-to-heat thermal energy storage innovation - and as a one of the front runners in the world in this sector - Elstor Oy transforms steam and heat production to zero…”

Source: company website · checked Sep 3, 2026
9
Ampner OYStrong evidence
Helsinki, FinlandHQ checked Sep 3, 202611-5017

“Ampner Oy – Power Engineering & DC Power Solutions for a Renewable Future Ampner is a Finnish technology company specialized in connecting renewable energy and energy storage…”

Source: company website · checked Sep 3, 2026
10
Comsel System LTDPartial evidence
Vasa, FinlandHQ checked Sep 3, 202611-5012

“Comsel System is a product design and development company specialized in development and industrialization engineering for the energy sector.”

Source: company website · checked Sep 3, 2026
11
Olana EnergyStrong evidence
Helsinki, FinlandHQ checked Sep 3, 20261-1011

“Olana is an energy storage company.”

Source: company website · checked Sep 3, 2026
12
Usva Energia OYPartial evidence
Helsinki, FinlandHQ checked Sep 3, 20261-105

“Usva Energia on perustettu vastaamaan uusiutuvan energian lisääntymisen aiheuttamiin haasteisiin verkon vakaudelle.”

Source: company website · checked Sep 3, 2026
13
Salusfin OYPartial evidence
Espoo, FinlandHQ checked Sep 3, 20261-104

“Established in 2013, Salusfin Oy provides customized Smart Energy Management and Security Solutions.”

Source: company website · checked Sep 3, 2026
14Helsinki, FinlandHQ checked Sep 3, 202611-503

“Smart charge your car and smart heat your home when it is climate-friendly and cheap!”

Source: company website · checked Sep 3, 2026
15
ENIONPartial evidence
Tampere, FinlandHQ checked Sep 3, 20261-102

“Automating energy consumption in homes and real estate.”

Source: company website · checked Sep 3, 2026
16
Akkurate OYIndirect evidence
Kaarina, FinlandHQ checked Sep 3, 202611-501

“Akkurate Oy is a Finnish technology company.”

Source: company website · checked Sep 3, 2026

Showing 16 of 34 grid energy storage software based in Finland

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Grid energy storage software based in Finland at a glance

As of Sep 3, 2026
1-10Median size (employees)
HelsinkiLargest hub · 12 HQs
62Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
17
11-50
10
51-200
6
501-1,000
1

Verified emails by last verification

0–30
0
31–60
18
61–90
177
90–180
121
180+
2

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 software, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Finland whose own description of what they do matches “grid energy storage software”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among grid energy storage software, and records with no verified work email. Companies headquartered outside Finland 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 an evidence 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, 318 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 3, 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

How many grid energy storage software are there based in Finland?

RevenueBase identified 34 grid energy storage software headquartered in Finland 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?

EFORE, headquartered in Espoo, tops this list with the largest team on record.

Which city has the most grid energy storage software?

Helsinki leads with 12 headquartered companies, followed by Tampere (5) and Vantaa (4).

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 318 verified decision-maker contacts tracked across these 34 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 3, 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.