Energy, Climate & Environment companies in Finland
Energy, climate and environment is among the largest sectors on the map. Finnish companies in it work on heat storage, industrial electrification, small nuclear reactors for district heating, hydrogen, batteries, low-carbon building materials and emissions measurement.
In market 19
Product is being sold.
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Helsinki · founded 2014 · Exit / acquiredDrone/handheld/fixed sensors for mapping industrial emissions (70+ emissions) + cloud analytics. Founded 2014; Finnish entity now Aellia Finland Oy.
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Kannonkoski · founded 2016 · 📈 ListedGeoprime material technology replaces cement in concrete with alkali-activated industrial side streams, cutting the carbon footprint; a second line commercialises metal extraction from those same streams. The…
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Helsinki · founded 2015Proprietary Li-ion electrolyte formulations (ProLion) sold to cell makers as drop-in replacements improving cycle life, fast charge and low-temperature performance across LFP, NMC, LCO and LMFP chemistries…
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Helsinki · founded 2021Large-scale battery storage (incl. second-life EV batteries), energy-as-a-service.
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Joensuu · founded 2022Carbon-negative concrete: CO₂ is injected and permanently mineralised into the material during curing, replacing 20–50 % of the cement — a footprint of about −60 kg CO₂/m³ against roughly +250–300 for…
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Tampere · founded 2022Tampere Univ. spin-off (2022) built on 10+ years of electrochemical research: patented Electrical Fingerprint (EFP™) pairs proprietary measurement hardware with AI to capture ~2 000 data points per cell in…
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Helsinki · founded 2011RotoDynamic technology for electrifying high-temperature industrial processes — renewable electricity to 1700°C with zero operational CO2. The first commercial-scale RotoDynamic Heater is deployed with Adani's…
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Oulu · founded 2021Power-electronics cooling: NEOcore thermal-management technology, considerably more efficient than commercial heat sinks, for EV charging stations, 5G base stations, smart grids and high-intensity LED…
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Helsinki · founded 2009Patented biological fermentation removes a controlled share of the nitrogen from a substrate before anaerobic digestion, so high-nitrogen organic waste such as poultry manure — normally an inhibitor of biogas…
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Kokkola · founded 2019Thermo-catalytic methane pyrolysis splits natural gas or biogas into hydrogen and solid carbon with no CO₂ released, using about 13 % of the energy electrolysis needs. Europe's largest methane-splitting plant…
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Espoo · founded 2021Neophy — control and optimisation for water electrolysers in green hydrogen production: process optimisation, safety monitoring and maintenance planning across production lines. Built on water-electrolysis and…
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Helsinki · founded 2012Rotor sails for large ships: spinning composite cylinders that turn wind into thrust via the Magnus effect, cutting fuel use and emissions. The 1920s Flettner rotor is public domain — the company's IP is what…
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Tampere · founded 2018'Sand battery' — high-temperature seasonal heat storage in sand, charged with cheap renewable electricity and discharged as heat into district heating and industrial processes. Founded in 2018 by Tommi Eronen…
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Espoo · founded 2019 · Exit / acquiredPower-grid fault location and prediction: the Intelligent Grid System® measures current and high-frequency transients, and locates a fault by triangulating the transient signal it creates across…
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Espoo · founded 2011Industrial liquid microfiltration (self-cleaning filter) — water treatment and process streams.
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Lappeenranta · founded 2015Active magnetic bearings (AMB) + Magma controller for high-speed machines — ~5× more energy-efficient than mechanical. Flywheels, fusion, oil-free motors. LUT roots.
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Helsinki · founded 2018Environmental DNA (eDNA) sampling and analysis for biodiversity monitoring and impact assessment - species detection, biodiversity surveys and ecosystem health, serving energy and infrastructure clients (incl.…
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Espoo · founded 2018Patented Software-Defined Power Conversion (SDPC) for DC-DC conversion: software control draws up to three times the power from the same footprint and cuts conversion losses from 7–10% to 3–5%, shrinking…
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Tampere · founded 2023Optoelectronic chips manufactured in-house in Tampere: power-by-light energy transfer and novel III-V photovoltaics, with space as a lead market. Delivers the whole stack from semiconductor to optics…
Pre-revenue 13
No sales yet.
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Helsinki · founded 2016Patented Carbolysis process — high pressure and high heat — converts waste biomass from agriculture and forestry into stable biochar that locks the carbon away for over a thousand years, sold as durable carbon…
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Tampere · founded 2024Tampere Univ. spin-off (2024) commercialising field-deployable LIBS laser spectroscopy for soil organic carbon — lab-grade precision measured in situ, no lab shipping. Peer-reviewed method (Geoderma, Optica).…
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Helsinki · founded 2018Durable, safe high-power batteries (water-based chemistry) for heavy equipment, transport and the grid.
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Tuusula · founded 2024VTT Launchpad spin-out (2024) commercialising patented renewable supercapacitors: a nanocellulose-based material platform binding biocarbon from waste wood and agricultural residues, which the company says is…
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Espoo · founded 2025Copper flow battery for long-duration grid storage: copper is the active material in an aqueous, non-flammable electrolyte held in external tanks, so power and capacity scale independently. 4–12 h discharge…
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Tampere · founded 2022Converts CO₂ and water into synthetic hydrocarbons with a low-temperature electrolyser, targeting e-SAF (synthetic aviation fuel). Tampere Univ. origin: the underlying artificial-photosynthesis research…
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Espoo · founded 2023Nutrient recovery from wastewater (nitrogen, phosphorus) — Aalto roots. BF Deep Tech Accelerator.
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Helsinki · founded 2025Converts captured industrial CO₂ into syngas and activated carbon. VTT spin-out (2026).
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Espoo · founded 2025Additive-manufactured reversible Solid Oxide Fuel Cells (SOFC) and Protonic Ceramic Fuel Cells (PCFC) for cost-effective green hydrogen and e-fuel production, without critical or rare-earth materials.…
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Espoo · founded 2023 · 📈 ListedCompact nuclear heating plants (LDR-50) for carbon-free district heating. VTT spin-out; a full-scale non-nuclear pilot plant is being built at a decommissioned coal plant in central Helsinki, with preliminary…
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Tampere · founded 2023High-temperature 'sand-in-motion' thermal storage that lets industry electrify process heat: stores cheap renewable electricity and releases it as heat on demand, claimed to cut industrial energy costs by up…
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Espoo · founded 2026Off-the-shelf drones measure wind, temperature and humidity from ground level up to a few hundred metres - the layer weather stations, satellites and balloons mostly miss. An in-house AI physics model corrects…
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Helsinki · founded 2024Alignment-free wireless power transmission — delivers power over the air in 360°, with no line of sight and no need to align the device, so it keeps charging while moving or rotating. Built on over a decade of…
Research projects (pre-company) 5
University and VTT commercialisation projects — no legal entity or funding round yet. Not a complete national list.
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AAAWELUT University
Advanced alkaline water electrolyser design that limits stray-current losses, enabling >1000V cell stacks (vs. the conventional <500V) and 14-18% lower CAPEX for hydrogen production. LUT University R2B…
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HHYGRONVTT
Energy-efficient air conditioning via advanced dehumidification. VTT LaunchPad team.
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IPInkjet Printable Perovskite Solar PanelsAalto · Espoo
Perovskite solar cells inkjet-printed directly onto glass or similar substrates, patternable into any architectural design and producible outside a cleanroom. 4 patents (incl. 2-sided structure and ink).…
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PPivotCoreTampere Univ.
Adaptive, model-based control for medium-voltage power converters that adjusts to real system conditions in real time - improves stability and cuts tuning/engineering effort without new hardware. Targets…
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RReLIGHTUniversity of Helsinki · Helsinki
Composite nanoparticle catalysts for green hydrogen electrolysis (PEM, alkaline, AEM) that drastically cut the amount of noble metal needed, lowering CAPEX/OPEX and supply-chain risk. University of Helsinki…
Other sectors
How this list was made
Every company is checked by hand against the trade register and its own material, and placed in the one sector that best describes its business or technology. Service firms and consultancies are left out. The full rules are on the landscape ↗