Company lists · Data refreshed September 2026

Top 15 Battery storage software companies based in Finland

RevenueBase identified 27 battery storage software companies headquartered in Finland as of September 2026 and tracks 711 professional contacts across them, including 288 with verified work emails. Helsinki is the largest hub.

This list covers battery storage software companies 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 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 14, 2026 86% judged on-target in blind review
27Companies
711Contacts tracked
288Verified emails
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The 15 largest battery storage software companies based in Finland

Ranked by team size
Top 15 of 27 battery storage software companies based in Finland, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to battery storage software companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceEspoo, FinlandHQ checked Sep 14, 202651-200119 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 14, 2026
2Strong evidenceYlöjärvi, FinlandHQ checked Sep 14, 202651-200114 contacts →

Strong evidence

“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: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceKempele, FinlandHQ checked Sep 14, 202611-5063 contacts →

Indirect evidence

“Virta päällä vihreässä siirtymässä.”

Source: RevenueBase Database · checked Sep 14, 2026
4Strong evidenceKempele, FinlandHQ checked Sep 14, 202651-20062 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceHelsinki, FinlandHQ checked Sep 14, 202651-20045 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceHelsinki, FinlandHQ checked Sep 14, 202611-5031 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceTampere, FinlandHQ checked Sep 14, 20261-1022 contacts →

Indirect evidence

“Enico offers wide-ranging production, manufacturing and project services in the field of renewable energy.”

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceEspoo, FinlandHQ checked Sep 14, 202611-5013 contacts →

Partial evidence

“Celltech Oy is one of the leading battery suppliers in Finland with over 30 years of experience.”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceHelsinki, FinlandHQ checked Sep 14, 20261-1011 contacts →

Partial evidence

“Olana is an energy storage company.”

Source: RevenueBase Database · checked Sep 14, 2026
10Partial evidenceHelsinki, FinlandHQ checked Sep 14, 202611-5010 contacts →

Partial evidence

“Geyser Batteries is a Finnish cleantech startup developing and producing a new generation of safe and sustainable power batteries using proprietary water-based electrochemistry.”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceHelsinki, FinlandHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceEspoo, FinlandHQ checked Sep 14, 20261-105 contacts →

Partial evidence

“Halide Energy manufactures cost-effective, high performing, and sustainable copper flow batteries to enable grid-scale and industrial adopters to overcome their long duration…”

Source: RevenueBase Database · checked Sep 14, 2026
13Strong evidenceTampere, FinlandHQ checked Sep 14, 20261-105 contacts →

Strong evidence

“Fastest urban BESS deployment with maximum return on investment for the customer At GreenGen, we provide full-service Battery Energy Storage System (BESS) solutions designed for…”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceHelsinki, FinlandHQ checked Sep 14, 202611-503 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceKaarina, FinlandHQ checked Sep 14, 202611-501 contacts →

Indirect evidence

“Akkurate Oy is a Finnish technology company.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 15 of 27 battery storage software companies based in Finland

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Battery storage software companies based in Finland at a glance

As of Sep 14, 2026
40.5%Verified-email coverage
26.3Average contacts per company
11-50Median size (employees)
33.3%Largest-city concentration · Helsinki
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
8
51-200
5
501-1,000
1

Email recency for this list is measured worldwide rather than for Finland, so it is reported there. Company counts and contact totals on this page are exact for Finland, over 27 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 battery storage software 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 Finland whose own description of what they do matches “battery storage software 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 battery storage software 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 battery storage software companies, 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 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, 288 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 14, 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 battery storage software 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 battery storage software companies are there based in Finland?

RevenueBase identified 27 battery storage software companies 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 battery storage software companies?

Helsinki leads with 9 headquartered companies, followed by Tampere (4) and Espoo (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 288 verified decision-maker contacts tracked across these 27 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 14, 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.