Best Energy Tech Companies in Stockholm County, Sweden
The 120 best Energy Tech companies in Stockholm County, Sweden in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Einride.
Our analysis of 287 Energy Tech companies
$109.4b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Tech companies in Stockholm County
| # | Company | Disclosed funding | Last round | Employees | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Einride 🦄 Provider of electric and autonomous freight transportation solutions | $652M | 3 mo ago | 571 | 2016 | WebflowSalesforceVimeo+19 | 65 patents Autonomous freight vehicle operation, fleet management, and electric routing systems | 1 partnership |
| 2 | Voi 🦄 App-based platform offering electric kick-scooter rental services | $544M | 27 mo ago | 1,000 | 2018 | Apple iCloud MailGoogle WorkspaceRuby+21 | — | — |
| 3 | Volta Trucks Developer of electric trucks | $386M | 39 mo ago | 13 | 2019 | WordPressApple iCloud MailMicrosoft 365+37 | — | — |
| 4 | Polarium 🦄 Developer of battery management systems and energy storage hardware solutions | $274M | 20 mo ago | 550 | 2015 | WordPressApple iCloud MailMicrosoft 365+32 | — | 1 partnership |
| 5 | Tibber Provider of a digital platform for electricity consumption management and insights | $177M | 51 mo ago | 61 | 2016 | Apple iCloud MailGoogle WorkspaceBootstrap+21 | — | 1 job opening · 5 partnerships |
| 6 | Aira Provider of heat pumps solution for energy efficiency | $159M | 10 mo ago | — | 2022 | Apple iCloud MailMicrosoft 365Node.js+20 | — | 1 launch · 1 partnership · 1 award |
| 7 | X Shore Manufacturer of electric boats | $113M | 25 mo ago | 110 | 2016 | StoryblokApple iCloud MailMicrosoft 365+20 | — | — |
| 8 | Flower Provider of energy storage solutions | $109M | 19 mo ago | — | 2020 | WordPressApple iCloud MailGoogle Workspace+18 | — | — |
| 9 | Svea Solar Provider of app-based solar battery storage and energy consumption monitoring solutions | $107M | 48 mo ago | — | 2014 | Apple iCloud MailMicrosoft 365Ruby+28 | — | 1 partnership |
| 10 | Candela Manufacturer of hydrofoiling electric boats and ferries for water transport | $94M | 3 mo ago | 400 | 2014 | WordPressApple iCloud MailMicrosoft 365+28 | — | 1 launch |
| 11 | CorPower Ocean Wave energy converter solutions provider | $76M | 0 mo ago | 69 | 2009 | WordPressMySQLPHP+15 | 21 patents Vibrating pile wave-energy converters and associated power‑electronics transformation systems | 1 job opening |
| 12 | CAKE Manufacturer of electric motorbikes | $74M | 56 mo ago | 182 | 2016 | Node.jsSalesforceReact+23 | — | — |
| 13 | Exeger Manufacturer of solar cells | $45M | 6 mo ago | 160 | 2009 | WordPressMySQLPHP+23 | — | — |
| 14 | Charge Amps Provider of electric vehicle charging products, services, and related accessories | $44M | 50 mo ago | 1 | 2012 | WordPressMySQLRedis+31 | 13 patents EV charging connectors and sockets with integrated visual status indicators. | — |
| 15 | SunRoof Manufacturer of solar roof tiles or building integrated photovoltaic tiles | $39M | 41 mo ago | 132 | 2013 | WordPressMySQLPHP+28 | — | 2 partnerships |
| 16 | Echandia Manufacturer of maritime battery systems engineered for heavy-duty vessel applications | $36M | 15 mo ago | 30 | 2009 | WordPressMySQLPHP+23 | — | 4 launchs |
| 17 | Legora Law Provider of electric scooters and bikes for urban transportation solutions | $36M | 23 mo ago | — | — | — | — | — |
| 18 | Vässla Developer of electric-two wheelers | $17M | 60 mo ago | 31 | 2017 | Cart FunctionalityShopifyApple iCloud Mail+32 | — | — |
| 19 | SaltX Technology Saltwater based energy storage system | $17M | 71 mo ago | 12 | 2001 | WordPress Block EditorWordPressMySQL+17 | — | — |
| 20 | Greenely Provider of an application that connects and optimizes home energy consumption | $16M | 22 mo ago | — | 2014 | WebflowSentryAmazon Web Services+15 | — | 1 partnership |
| 21 | Fever Energy Provider of a virtual power plant platform | $12M | 28 mo ago | 8 | 2022 | TurbopackNode.jsHeadless UI+20 | — | — |
| 22 | Midsummer Manufacturer of thin, light, and flexible solar panels for various roofs | $12M | 14 mo ago | 96 | 2004 | WordPressMySQLPHP+42 | 12 patents CIGS thin‑film solar cell manufacturing and recycling of copper‑indium‑gallium‑selenide materials | 1 partnership |
| 23 | Plexigrid Provider of software solutions for efficient management of electricity distribution networks | $12M | 27 mo ago | 28 | 2019 | WordPressMySQLPHP+31 | — | 1 expansion |
| 24 | myFC Fuel cell technology solution provider | $7M | 85 mo ago | 11 | 2005 | — | 138 patents Fuel cell power modules and hybrid fuel‑cell/battery systems for electric vehicles | — |
| 25 | Myrspoven Provider of AI-driven energy optimization solutions for commercial buildings | $6M | 28 mo ago | 47 | 2017 | WordPressMySQLPHP+22 | — | 1 launch |
| 26 | Blixt Developer of programmable power infrastructure for electrical distribution systems | $5M | 27 mo ago | 8 | 2018 | Cart FunctionalityWordPressMySQL+30 | — | 1 partnership |
| 27 | DREM Installer of air-water, air-air, exhaust air, and geothermal heat pumps | $5M | 19 mo ago | 16 | 2022 | TypeScriptGraphQLGoogle Maps+19 | — | — |
| 28 | Watty Energy usage data analytics for smart homes and buildings | $4M | 119 mo ago | 11 | 2013 | — | — | — |
| 29 | Arkion AI-powered asset analytics solution for power grid | $4M | 23 mo ago | — | 2019 | WebflowSalesforceAmazon Web Services+18 | — | — |
| 30 | Qurrent Provider of energy solutions for energy grid and their utility | $4M | 11 mo ago | — | 2022 | WebflowUnpkgcdnjs+5 | — | 1 launch |
| 31 | C Green Provider of solutions for the conversion of wastewater sludge into biocoal | $3M | 44 mo ago | 5 | 2015 | Cart FunctionalitySquarespace CommerceSquarespace+19 | 24 patents Advanced silicon production and multiphase reactor technologies for silicon material manufacturing | — |
| 32 | Hemma Provider of real-time energy performance data platform | $2M | 35 mo ago | — | 2018 | — | — | — |
| 33 | Waybler Electric vehicle charging solution | $2M | 95 mo ago | 24 | 2015 | Node.jsThree.jsBootstrap+14 | 13 patents Integrated street curbstones with built‑in EV charging and dynamic power distribution | — |
| 34 | Cling Systems Provider of a platform for sourcing and transacting battery materials | $2M | — | 7 | 2020 | — | — | — |
| 35 | Enerpoly Manufacturer of zinc-ion batteries | $2M | 30 mo ago | 12 | 2018 | RubyAnimate.cssVarnish+16 | 10 patents Patents concentrated in electrical & electronics | — |
| 36 | Ferroamp Developer of smart energy management system | $2M | 68 mo ago | 86 | 2010 | WordPressMySQLPHP+35 | — | 1 launch |
| 37 | Southern Lights Green hydrogen projects assessment solution | $2M | 27 mo ago | 3 | 2022 | WordPressMySQLPHP+21 | — | — |
| 38 | CheckWatt Provider of virtual power plant services for flexible energy resources | $2M | 56 mo ago | — | 2011 | RubyAnimate.cssVarnish+11 | — | 1 launch |
| 39 | Phoenix Biopower Developer of biomass-fired technology intended to facilitate power generation from biomass | $1M | 57 mo ago | 16 | 2016 | — | 24 patents Patents concentrated in mechanical & energy engineering | — |
| 40 | Telcred Provides NFC based access control | $727K | 133 mo ago | 6 | 2009 | — | 4 patents Physical access control hardware and management systems for secure entry | — |
| 41 | Climeon Provider of SaaS-driven industrial and geothermal waste heat recovery products | $514K | 60 mo ago | 37 | 2011 | WordPress Block EditorBeaver BuilderWordPress+27 | 109 patents Low‑temperature heat‑to‑electric conversion systems with pumps, condensers, and plate heat exchangers. | — |
| 42 | Expektra Demand forecasting solutions for utilities and power trading | $219K | 89 mo ago | 7 | 2010 | — | — | 1 partnership · 1 expansion |
| 43 | Flue Gas Recovery Sweden Waste heat recovery from flue gases | $211K | 120 mo ago | 2 | 2013 | — | — | — |
| 44 | Solelia Greentech Developer of solar banking system | $115K | 90 mo ago | 3 | 2011 | — | — | — |
Top 12 Energy Tech companies in Stockholm County
#1
Einride 🦄Series E · Stockholm, Stockholm County · founded 2016 · 571 employees$652.3Mraised▾
Provider of electric and autonomous freight transportation solutions. It integrate smart vehicles, AI-powered logistics software, and charging infrastructure for sustainable road freight operations. It combines autonomous vehicles, electric trucking operations, intelligent charging infrastructure, and AI-powered fleet management software into a unified logistics ecosystem. Its solutions optimize freight movement through real-time data analysis, route management, energy optimization, and operational automation, enabling businesses to reduce emissions, improve efficiency, and transition toward sustainable transportation at scale across global markets.
- Feb 2026Series E$113M
- Oct 2025Series D$100M
- Aug 2023Series C—
- May 2023Grant (prize money)$15M
#2
Series B · Stockholm, Stockholm County · founded 2009 · 69 employees$75.7Mraised▾
Wave energy converter solutions provider. It has developed a point absorber with a heaving buoy on the surface which absorbs energy from the combined surge and heavy motion of the waves.
- Jul 2025Series B—
- Feb 2025Grant (prize money)$2.6M
- Feb 2025Series B$15.7M
- Oct 2024Series B$35M
#3
Acquired · Stockholm, Stockholm County · founded 2014 · 400 employees$94Mraised▾
Manufacturer of hydrofoiling electric boats and ferries for water transport. The company is pioneering the future of waterborne public transport with electric hydrofoil ferries that combine zero emissions, high speed, and exceptional energy efficiency.
- Mar 2026Series D$32M
- Aug 2025Series C$8.1M
- Nov 2024Series C$14M
- Mar 2024Series C$26.7M
#4
Series B · Stockholm, Stockholm County · founded 2009 · 160 employees$45.1Mraised▾
Manufacturer of solar cells. It offers a proprietary material that improves the performance of the cell. It also uses technology which uses light-sensitive dye to collect energy like photosynthesis.
- Dec 2025Grant (prize money)$13.8M
- Apr 2025Series B$15.1M
- Mar 2023Series B—
- May 2021Conventional Debt$20M
#5
Series C · Stockholm, Stockholm County · founded 2022$158.8Mraised▾
Provider of heat pumps solution for energy efficiency. It offers air-source heat pumps for residential heating. It delivers innovative and affordable clean energy-tech solutions to accelerate the electrification of residential heating.
- Aug 2025Series C$174.6M
- Jun 2024Conventional Debt$217.3M
- Jan 2024Series B$158.8M
#6
Polarium 🦄Series D · Stockholm, Stockholm County · founded 2015 · 550 employees$273.6Mraised▾
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, and participate in energy markets. The technology supports the integration of renewable energy sources by providing scalable storage capacity for various infrastructure requirements.
#7
Series A · Stockholm, Stockholm County · founded 2020$108.6Mraised▾
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.
- Nov 2024Series A$21.7M
- Aug 2024Series A$27.5M
- 2024Conventional Debt$44.1M
#8
Series B · Solna, Stockholm County · founded 2009 · 30 employees$36Mraised▾
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.
- Mar 2025Series B$34M
- Aug 2018Grant (prize money)$1.4M
- Sep 2016Grant (prize money)$533.8K
- Jan 2016Grant (prize money)$44.1K
#9
Voi 🦄Series D · Stockholm, Stockholm County · founded 2018 · 1000 employees$544.3Mraised▾
App-based platform offering electric kick-scooter rental services. It provides a mobile app that allows users to find and rent electric kick scooters nearby. The users can unlock the kick scooters through a QR code and after riding they can park it at any valid place. The mobile application is available for iOS users.
- Mar 2024Series D$25M
- Mar 2024Conventional Debt—
- Dec 2021Series D$115M
- Aug 2021Series C$45M
#10
Public · Stockholm, Stockholm County · founded 2004 · 96 employees$12.4Mraised▾
Manufacturer of thin, light, and flexible solar panels for various roofs. These solar panels are designed for tile, metal, and membrane roofs. The products can be installed on existing roofs or during roof replacement. The company also manufactures machinery used in the solar panel production.
- Apr 2025Grant (prize money)$3M
- Apr 2023Grant (prize money)$7M
- Nov 2021Grant (prize money)—
- Nov 2021Conventional Debt—
#11
Series B · Lidingo, Stockholm County · founded 2016 · 110 employees$113.1Mraised▾
Manufacturer of electric boats The company develops various models of electric boats with features like electric motors, lithium-ion battery capacity, touchscreens, remote keys, and anti-theft solutions.
- Apr 2024Series B$9.1M
- Apr 2023Series B$28.9M
- Apr 2022Series B$50M
- Apr 2021Series A$17.8M
#12
Seed · Stockholm, Stockholm County · founded 2022$3.5Mraised▾
Provider of energy solutions for energy grid and their utility. It provides users with a company that focus on an energy organization that aims to help people generate and save energy. It also facilitate transactions, and establishing rules to govern the network in order to build trust and maintain quality.
- Jul 2025Seed$3.5M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Grid Energy Storage is moving in Sweden
A read on the academic research around Grid Energy Storage — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 409 Sweden-affiliated papers.
- Chalmers University of Technology94
- KTH Royal Institute of Technology91
- Uppsala University52
- Lund University30
- Luleå University of Technology22
- Battery (electricity)1→30
- Supercapacitor3→17
- Renewable energy1→13
- Capacitance2→12
- Anode1→10
- Renewable energy1→44
- Battery (electricity)2→43
- Automotive engineering1→17
- Electrode1→17
- Flexibility (engineering)1→13
- Battery (electricity)20
- Nanotechnology9
- Electrolyte7
- Flexibility (engineering)7
- Supercapacitor7
Where energy storage is researched across Sweden
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.