Energy Storage Tech · Sweden, India

Best Energy Storage Tech Companies in Sweden

Updated 2026-06-22 · Ranked by funding & momentum

94 indexable Energy Storage Tech companies headquartered in Sweden, ranked by total equity funding and recent funding momentum. Combined disclosed equity funding of $9.7B across 29 funded companies, including 2 unicorns.

94
Companies
$9.7B
Total Funding
29
Funded
2
Unicorns
0
Rounds (90d)

Ranked: Best Energy Storage Tech companies in Sweden

#CompanyFundingValuationStage Latest roundEmployeesFoundedMomentum
1 Altris
Developer of sodium-ion battery technology for sustainable energy solutions
$27.2M Series B Series B Nov 2025 28 2017 ↑ Active
2 Northvolt Unicorn
Manufacturer of lithium-ion batteries for electric vehicles
$9B $11.8B
as of 2021
Acquired Conventional Debt Mar 2024 5,000
3 Polarium Unicorn
Developer of battery management systems and energy storage hardware solutions
$273.6M $1B
as of 2022
Series D Series D Oct 2024 550 2015 ↑ Active
4 Echandia
Manufacturer of maritime battery systems engineered for heavy-duty vessel applications
$36M Series B Series B Mar 2025 30 2009 ↑ Active
5 Flower
Provider of energy storage solutions
$108.6M Series A Series A Nov 2024 2020 ↑ Active
6 Plagazi
Developer of technology converting non-recyclable waste into circular hydrogen
$4.8M Series A Grant (prize money) May 2025 21 2007 ↑ Active
7 Tether
Provider of energy storage systems for electric vehicles
$20K Seed Seed Jun 2025 2 2020 ↑ Active
8 CTEK
Provider of Electric vehicle charging solutions
$123.1M Acquired PE Sep 2021 5 1997
9 Charge Amps
Provider of electric vehicle charging products, services, and related accessories
$44.4M Series B Series B Apr 2022 1 2012
10 Enerpoly
Manufacturer of zinc-ion batteries
$1.9M Seed Grant (prize money) Dec 2023 12 2018
11 Southern Lights
Green hydrogen projects assessment solution
$1.7M Seed Seed Mar 2024 3 2022
12 Cellfion
Developer of bioenergy project
$1.3M Seed Grant (prize money) Mar 2024 6 2020
13 Elonroad
Road-embedded EV charging infrastructure
$5.5M Funding Raised Grant (prize money) Jan 2023 29 2014
14 Azelio
Provider of solar thermal energy generation technology
$11.5M Seed Seed Nov 2021 134 2015
15 SaltX Technology
Saltwater based energy storage system
$16.6M Public Grant (prize money) Jun 2020 12 2001
16 Cell Impact
Manufacturer of flow plates for hydrogen fuel cells and electrolyzers
$20M $291.1K
as of 2024
Late Stage Post IPO Oct 2020 118 1999
17 Rivus
Provider of redox flow-based energy storage solutions
$569.8K Seed Seed Dec 2023 2 2019
18 myFC
Fuel cell technology solution provider
$6.7M Public Post IPO Apr 2019 11 2005
19 TEXEL
Developer of energy storage and waste heat to electricity solutions
$321.3K Seed Seed Jun 2023 12 2010
20 Qoitech
Developer of tools for low-power measurement, battery analysis, and optimization
$551.9K Seed Seed Dec 2022 15 2017
21 Alelion Energy Systems
Manufacturer of lithium ion batteries
$2.2M Public Conventional Debt Dec 2018 45 2006
22 Nortical
Provider of software solutions to improve battery efficiency
$1.3M Deadpooled Seed Oct 2020 12 2019
23 Waybler
Electric vehicle charging solution
$2.4M Series A Series A Jun 2018 24 2015
24 Insplorion
Developer of sensors for hydrogen infrastructure, production, and application
$410K Public Post IPO Nov 2020 8 2010
25 Cling Systems
Provider of a platform for sourcing and transacting battery materials
$2.3M Seed Seed 7 2020
26 ReVibe Energy
Energy harvesting by converting vibrations into electricity
$450K Series A Grant (prize money) Nov 2019 12 2014
27 Celcibus
Provider of hydrogen fuel storage solutions
$399.4K Seed Dec 2020 6 2019
28 Solelia Greentech
Developer of solar banking system
$115.2K Deadpooled Grant (prize money) Nov 2018 3 2011
29 Spira Energy
Developer of compressed air storage solution
$56.1K Funding Raised Grant (prize money) Jan 2020 2017
30 PowerCell Sweden
Company develops and produces hydrogen electric fuel cell stacks
Public Post IPO Dec 2024 142 2008 ↑ Active
31 Catator
Developer of catalytic technologies for fuel reforming and green hydrogen solutions
Funding Raised Grant (prize money) Sep 2023 1988
32 Caplyzer
Electrolysis platform to generate hydrogen
Seed Seed Jun 2023 2022
33 Reload
Provider of plug-in charging solutions for EVs
Seed Seed Sep 2022 2 2021
34 Micropower Group
Manufacturer of chargers and energy storage systems
Acquired Grant (prize money) Apr 2010 1984
35 Aeroform
Developer of the alkaline fuel cell system
Unfunded 2012
36 Anodox
Provider of energy storage systems
Unfunded 1 2016
37 BananaCharge Deadpooled 5 2015
38 Batixt
Developer of electrochemical impedance spectroscopy measurement technology for battery evaluation
Unfunded 2023
39 Batteriunion i Jarfalla
Manufacturer of traction batteries and chargers based in Jarfalla, Sweden.
Acquired 16 1993
40 Beakon Technologies
Developer of thermoelectric technologies. The company develops a thermoelectric chip which converts waste heat into electric energy.
Deadpooled 2 2005
41 Beam
Provider of green charging infrastructure and app for electric vehicles
Unfunded 2022
42 BEV Technology
Developer of electric vehicle chargers
Unfunded 2020
43 Brick
Provider of power banks
Unfunded 24 2019
44 Capture Energy
Provider of turnkey battery energy storage systems for flexibility markets
Unfunded 2023
45 Catator
Developer of catalyst for fuel-cell applications
Unfunded 1990
46 Cellkraft
Develops fuel cells and humidification needs
Unfunded 2000
47 Charge Amps
We create smart charging solutions for electric vehicles through Swedish innovation and sustainable design.
131 2012
48 ChargeFinder
Provider of an EV charging point locator app
Unfunded 2008
49 ChargeNet
Provider of EV charging solution
Unfunded 2024
50 chargenode
ChargeNode offers charging solutions for electric and hybrid vehicles.
Private 45 2018

Top 12 Energy Storage Tech companies in Sweden

#1
Altris Series B
$27.2M Raised
expand_more
location_onUppsala, Uppsala County
Founded
2017
Employees
28
Funding raised
$27.2M
Stage
Series B

Developer of sodium-ion battery technology for sustainable energy solutions. The company provides sodium-ion cathodes, electrolytes, cell designs, and factory blueprints. It offers commercial battery cells for niche applications. The company’s patented cathode manufacturing process ensures continuous output of high-quality material.

Tech stack
animate.csscdnjscloudflarefont awesomegoogle font apigoogle hosted libraries+14
#2
Northvolt Unicorn Acquired
$9B Raised
expand_more
location_onSweden, Stockholm
Employees
5,000
Funding raised
$9B
Valuation
$11.8B · 2021
Stage
Acquired

Manufacturer of lithium-ion batteries for electric vehicles. It provides solutions for new production technologies to deliver low-cost lithium-ion batteries to be used in electric and off-highway vehicles. It provides custom cells optimized for a particular application, battery system, and more.

Tech stack
amazon cloudfrontamazon s3amazon web servicesaosapple icloud mailaws certificate manager+12
#3
Polarium Unicorn Series D
$273.6M Raised
expand_more
location_onStockholm, Stockholm County
Founded
2015
Employees
550
Funding raised
$273.6M
Valuation
$1B · 2022
Stage
Series D

Developer of battery management systems and energy storage hardware solutions. These products facilitate energy storage for residential, commercial, industrial, and telecommunications applications. The hardware integrates with software to manage power availability, optimize energy consumption, and support grid stability. The systems enable users to store energy for reserve power, reduce costs through peak shaving, an

Tech stack
animate.cssapple icloud mailaxiosbootstrapcloudflarecloudflare bot management+14
#4
Echandia Series B
$36M Raised
expand_more
location_onSolna, Stockholm County
Founded
2009
Employees
30
Funding raised
$36M
Stage
Series B

Manufacturer of maritime battery systems engineered for heavy-duty vessel applications. These systems are designed for safety, durability, and optimized performance in demanding maritime environments. The battery systems handle rapid charging, high power peaks, and numerous cycles without degradation. They offer long lifecycles and are suitable for various vessels, including ferries and naval ships.

Funding rounds (4 disclosed of 4)
Round Date Amount
Series B Mar 2025 $34M
Grant (prize money) Aug 2018 $1.4M
Grant (prize money) Sep 2016 $533.8K
Grant (prize money) Jan 2016 $44.1K
#5
Flower Series A
$108.6M Raised
expand_more
location_onStockholm, Stockholm County
Founded
2020
Funding raised
$108.6M
Stage
Series A

Provider of energy storage solutions. They offer wide range of solutions such as virtual power plant,grid balancing services,renewable energy integration and AI driven energy optimization solutions. They offer an AI powered platform to stabilizing the energy system by enhancing predictability and flexibility.

Funding rounds (3 disclosed of 3)
Round Date Amount
Series A Nov 2024 $21.7M
Series A Aug 2024 $27.5M
Conventional Debt 2024 $44.1M
Founders & key people
Tech stack
amazon web servicesapple icloud mailcloudflarecloudflare bot managementcookiebotgoogle analytics+14
#6
Plagazi Series A
$4.8M Raised
expand_more
location_onBastad, Skane County
Founded
2007
Employees
21
Funding raised
$4.8M
Stage
Series A

Developer of technology converting non-recyclable waste into circular hydrogen. The technology uses plasma gasification to break down waste into synthesis gas. Carbon dioxide in the syngas is captured and stored. The process produces sustainable hydrogen without burning natural gas or fossil fuels.

Funding rounds (2 disclosed of 2)
Round Date Amount
Grant (prize money) May 2025 $33.5M
Series A Oct 2022 $4.8M
#7
Tether Seed
$20K Raised
expand_more
location_onStockholm, Stockholm County
Founded
2020
Employees
2
Funding raised
$20K
Stage
Seed

Provider of energy storage systems for electric vehicles

Funding rounds (2 disclosed of 2)
Round Date Amount
Seed Jun 2025 $1.5M
Seed 2023 $20K
Tech stack
apache http serverbootstrapcloudflarecloudflare bot managementgoogle analyticsgoogle font api+4
#8
CTEK Acquired
$123.1M Raised
expand_more
location_onVikmanshyttan, Dalarna
Founded
1997
Employees
5
Funding raised
$123.1M
Stage
Acquired

Manufacturers of EV chargers and these chargers are majorly used for charging automotive batteries.&nbsp.Since its founding, CTEK has sold about 6,2 million battery chargers in 70 countries around the world. The company provides battery chargers to a number of the world’s leading automobile manufacturers like Alfa Romeo, Arctic Cat, Audi, Bentley, BMW, Corvette, Ferrari, Lamborghini, Lexus, Maserati, Maybach, Rolls

Funding rounds (1 disclosed of 3)
Round Date Amount
PE Sep 2021 $123.1M
Conventional Debt Sep 2019 Undisclosed
Conventional Debt 2011 Undisclosed
Founders & key people
Tech stack
animate.cssapple icloud mailbabelbootstrapcloudflarecloudflare bot management+14
#9
Charge Amps Series B
$44.4M Raised
expand_more
location_onSolna, Stockholm County
Founded
2012
Employees
1
Funding raised
$44.4M
Stage
Series B

Provider of electric vehicle charging products, services, and related accessories. The company develops user-friendly charging solutions for homes, businesses, and public spaces. Product offerings include chargers, cables, mounting equipment, and monitoring devices. Services encompass cloud-based management, connectivity solutions, and certified installation support.

Funding rounds (2 disclosed of 2)
Round Date Amount
Series B Apr 2022 $15.9M
Series B Mar 2021 $15.3M
Tech stack
cloudflarecloudflare bot managementcontact form 7cookiebotcore-jsfacebook pixel+14
#10
Enerpoly Seed
$1.9M Raised
expand_more
location_onStockholm, Stockholm County
Founded
2018
Employees
12
Funding raised
$1.9M
Stage
Seed

Manufacturer of zinc-ion batteries. It develops environmentally friendly and rechargeable zinc-ion batteries for stationary energy storage solutions. Additionally, it offers non-toxic and recyclable zinc-ion batteries.

Funding rounds (9 disclosed of 9)
Round Date Amount
Grant (prize money) Dec 2023 $8.4M
Grant (prize money) Oct 2023 $600K
Grant (prize money) Mar 2023 $9.9M
Seed Dec 2022 $1.5M
Grant (prize money) Oct 2022 $49.8K
Seed Sep 2021 $484.4K
3 earlier rounds — sign up free
#11
$1.7M Raised
expand_more
location_onStockholm, Stockholm County
Founded
2022
Employees
3
Funding raised
$1.7M
Stage
Seed

Green hydrogen projects assessment solution. It provides a SaaS based tool to design, simulate and assess economics or feasibility of hydrogen projects. It allows customers to iterate faster on project designs and increase the quality and auditability of the hydrogen projects.

Funding rounds (1 disclosed of 1)
Round Date Amount
Seed Mar 2024 $1.7M
#12
Cellfion Seed
$1.3M Raised
expand_more
location_onNorrkoping, ostergotland County
Founded
2020
Employees
6
Funding raised
$1.3M
Stage
Seed

Developer of bioenergy project

Funding rounds (2 disclosed of 2)
Round Date Amount
Grant (prize money) Mar 2024 $2.7M
Seed Aug 2022 $1.3M

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Funding & investor landscape

Total raised
$9.7B
across these companies
Companies funded
29
with disclosed funding
Highest-funded
$9B raised

Most active investors

Europa Europa 11 investments in Energy Storage Tech EIC Fund EIC Fund 8 investments in Energy Storage Tech EIT InnoEnergy EIT InnoEnergy 6 investments in Energy Storage Tech Almi Invest Almi Invest 4 investments in Energy Storage Tech AMF AMF 3 investments in Energy Storage Tech European Innovation Council European Innovation Council 3 investments in Energy Storage Tech Swedish Energy Agency Swedish Energy Agency 3 investments in Energy Storage Tech Vinnova Vinnova 3 investments in Energy Storage Tech ATP ATP 2 investments in Energy Storage Tech Chalmers Ventures Chalmers Ventures 2 investments in Energy Storage Tech Ideon Innovation Ideon Innovation 2 investments in Energy Storage Tech KTH Holding KTH Holding 2 investments in Energy Storage Tech

Notable founders in Sweden Energy Storage Tech

TN Tim Nordh Co-Founder & CTO Altris · $27.2M raised
RM Ronnie Mogensen Co-Founder & Chief Scientific Officer Altris · $27.2M raised
WB William Brant Co-Founder Altris · $27.2M raised
HM Harald Mix Co-Founder Northvolt · $9B raised
PC Peter Carlsson Co-Founder & CEO Northvolt · $9B raised
PC Paolo Cerruti Co-Founder Northvolt · $9B raised
SJ Stefan Jansson Founder Polarium · $273.6M raised
LO Leif Ottosson CEO Polarium · $273.6M raised
JD John Diklev Founder & CEO Flower · $108.6M raised
LR Luis Rivas Co-Founder & CEO Tether · $20K raised
BW Bengt Wahlqvist Founder CTEK · $123.1M raised
BS Boel Swartling Co-Founder Charge Amps · $44.4M raised

Frequently asked questions

How many Energy Storage Tech companies are there in Sweden?
Radar tracks 94 indexable Energy Storage Tech companies headquartered in Sweden that meet our profile-completeness bar.
What is the total funding raised by Energy Storage Tech companies in Sweden?
The Energy Storage Tech companies in Sweden on this list have raised a combined $9.7B in disclosed equity funding across 29 funded companies.
Which is the highest-funded Energy Storage Tech company in Sweden?
Northvolt is the highest-funded Energy Storage Tech company in Sweden, with $9B in disclosed equity funding.
How many Energy Storage Tech companies in Sweden are funded?
29 of the 94 Energy Storage Tech companies in Sweden on this list have disclosed at least one equity funding round.
How many Energy Storage Tech unicorns are there in Sweden?
2 Energy Storage Tech companies in Sweden on this list are valued at $1B or more.
Who are the top investors in Sweden Energy Storage Tech companies?
The most active investors in Sweden Energy Storage Tech companies on this list include Europa, EIC Fund, EIT InnoEnergy, Almi Invest, AMF.

Rankings are computed by Radar (Fliar BI) from the Radar company master and are updated periodically. Funding and momentum scores use disclosed equity-funding data only. Figures may lag private rounds. Last updated 2026-06-22.

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