Company lists · Data refreshed September 2026
Top 23 Stationary energy storage companies based in Sweden
RevenueBase identified 45 stationary energy storage companies headquartered in Sweden as of September 2026 and tracks 770 professional contacts across them, including 371 with verified work emails. Stockholm is the largest hub.
This list covers stationary energy storage companies headquartered in Sweden, 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 18, 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.
The 23 largest stationary energy storage companies based in Sweden
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 282 contacts → | ||||
Strong evidence “Polarium is a leading energy storage developer.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 45 contacts → | ||||
Strong evidence “Swedish-based Nilar International AB develops and manufactures batteries that are part of stationary energy storage systems.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 3 | 40 contacts → | ||||
Strong evidence “We are Capture Energy, an energy storage solutions company dedicated to bringing good energy to our customers.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 4 | 31 contacts → | ||||
Strong evidence “Azelio is a Swedish company with a unique thermal energy storage solution for dispatchable electricity and heat.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 15 contacts → | ||||
Indirect evidence “Takkraft är en helhetsleverantör inom solceller, laddboxar, batterier och balanstjänster.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 15 contacts → | ||||
Strong evidence “Enerpoly develops and manufactures zinc-ion batteries to deliver breakthrough affordability in stationary energy storage.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 13 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 11 contacts → | ||||
Indirect evidence “Elbilsvaruhuset är din partner inom elbilsladdning och batterilagring.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Partial evidence “Powerworks helps renewable energy producers, electricity market actors, and grid operators unlock new revenues and reduce risk.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Partial evidence “Sustainable Energy Solutions Sweden Holding AB (publ)(SENS), provides sustainable energy solutions enabling the transition to a fossil-free and CO2 neutral energy mix both locally…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Partial evidence “We specialize in the design and installation of battery storage systems and solar parks.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 contacts → | ||||
Strong evidence “Rivus Batteries offers truly green batteries for stationary energy storage applications through organic flow batteries.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 contacts → | ||||
Strong evidence “Mine Storage enables a sustainable energy transition by developing and operating fast-response and medium to large scale energy storage with pumped hydro systems in mines.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 contacts → | ||||
Strong evidence “At Samvolt, we’re more than just a battery energy storage provider-we’re a partner in your journey toward energy resilience.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 contacts → | ||||
Strong evidence “We are part of a start-up driven by the necessity of the green transition, committed to setting new standards in data centers, energy storage, and heat reuse.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Indirect evidence “VÄRMELAGER FINNS ÖVERALLT Hydrocs spricklagerteknik för att lagra värme i berggrunden bygger på att det mesta av lagret redan är på plats, dvs i berggrunden.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Strong evidence “Suntrade Group AB är ett svenskt energibolag som utvecklar, finansierar, bygger och långsiktigt äger Battery Energy Storage Systems (BESS) i Norden.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Partial evidence “Energilagring för hem” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Strong evidence “Enbrilion designs builds and deploys safe and reliable energy storage solutions for long-duration residential, commercial, industrial and utility-scale applications requiring…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Partial evidence “PM Energi arbetar med lösningar inom solenergi och energilagring för företag och fastighetsägare.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Strong evidence “The energy system is changing - future-proof your business with our comprehensive commercial energy storage and EV solutions” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Strong evidence “Developing a novel energy storage for long-term and large-scale energy storage and production.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Partial evidence “Sync Energy tillhandahåller stödtjänster till elnätet som är nödvändigt i omställningen till förnybar el.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
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: stationary energy storage companies. 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 stationary energy storage companies.
- Partial evidence
- Its own public description names part of stationary energy storage companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name stationary energy storage companies. 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 23 of 45 stationary energy storage companies based in Sweden
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Stationary energy storage companies based in Sweden at a glance
As of Sep 18, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Sweden, so it is reported there. Company counts and contact totals on this page are exact for Sweden, over 45 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 stationary energy storage 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 Sweden whose own description of what they do matches “stationary energy storage 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 stationary energy storage 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 stationary energy storage companies, and records with no verified work email. Companies headquartered outside Sweden 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, 371 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 18, 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 stationary energy storage 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 stationary energy storage companies are there based in Sweden?
RevenueBase identified 45 stationary energy storage companies headquartered in Sweden 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?
Polarium, headquartered in Stockholm, tops this list with the largest team on record.
Which city has the most stationary energy storage companies?
Stockholm leads with 19 headquartered companies, followed by Goteborg (5) and Gothenburg (2).
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 371 verified decision-maker contacts tracked across these 45 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 18, 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.
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