26 Best Climate Tech Green Tech Startups in Helsinki to Watch in 2025

The Definitive Seedtable Ranking of Climate Tech Green Tech Startups in Helsinki

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 26 start-ups with an aggregate funding of $430.3m. The average funding per company in this subset is $16.5m.

Last update to the database: Feb 18, 2025. See changelog.

See all results for this search

Track over 71,000 companies

Discover
Fast-growing Global startups

Seedtable uses technology and people to track over 71,000 companies to help you find the right ones to partner with.

Pricing + Sign up

10

Funding Rounds

$44.8m

Money raised

A food technology company, based in Finland and founded in 2017, that has a process to electrolyze water for production of hydrogen in a system to feed bacteria to produce an edible protein food product with a low environmental impact. Their technology is being developed for space travel and future food production on Mars.

1

Funding Rounds

$14.3m

Money raised

Canatu Oy's business is the production and sales of a new class of versatile carbon based components based on its novel NanoBud nanomaterial.

1

Funding Rounds

$1.0m

Money raised

Sulapac is a fully biodegradable material innovation made of sustainably sourced wood and plant-based binders.

4

Funding Rounds

$76.1m

Money raised

MaaS Global is a Helsinki-based mobility-as-a-service operator offering alternative options for how people move.

3

Funding Rounds

$18.7m

Money raised

ZenRobotics is a Helsinki-based developer of intelligent sorting robots for waste management.

4

Funding Rounds

$48.4m

Money raised

Carbo Culture captures and sequesters carbon from agricultural waste by turning it into biochar, a material that can be used to amend soil and help plant growth.

1

Funding Rounds

$915.0k

Money raised

BroadBit is a technology company that is developing new batteries that use novel sodium-based chemistries to power the future green economy.

Location:

Key people:

4

Funding Rounds

$10.0m

Money raised

Altum is an ultrasonic cleaning technology for industrial applications founded in 2016 by Esteban Soto.

Location:

Key people:

1

Funding Rounds

$2.4m

Money raised

Tespack specializes in generating energy on the go. Tespack Smartpacks are wearable solar backpacks that collect energy from the sun, stores it, and then uses the power to charge devices outside people's homes. The company's goal is to make everyone energy independent and reduce their carbon footprint.

5

Funding Rounds

$22.0m

Money raised

Norsepower is a mechanical sails for large ships founded in 2012 by Tuomas Riski.

Location:

Key people:

1

Funding Rounds

$130.0k

Money raised

Kapacity.io is a Helsinki-based environmental technology company developing electricity demand response servics to reduce energy costs and emissions in residential areas.

Location:

Key people:

3

Funding Rounds

$9.0m

Money raised

iFarm creates innovative, data-driven vertical farming solutions.

2

Funding Rounds

$5.0m

Money raised

AI-powered weather intelligence solutions provider to measure, predict, and adapt to extreme weather.

2

Funding Rounds

$26.1m

Money raised

Small modular reactor (SMR) technology developer for district heating and industrial applications.

Location:

Key people:

1

Funding Rounds

$2.2m

Money raised

Woodly is a Helsinki-based producer of bioplastics for furniture, furnishing accessories, cots, and beds, and toys.

2

Funding Rounds

$32.3m

Money raised

Films and sensors for 3D touch surfaces and heater solutions.

2

Funding Rounds

$31.6m

Money raised

Cactos is a developer of smart energy storage systems founded in 2021 by Olli Nuutila.

Location:

Key people:

1

Funding Rounds

$140.0k

Money raised

Software solution for measuring and reducing food waste in professional kitchens.

1

Funding Rounds

$770.0k

Money raised

API-First EV Charging Platform integrates payment, business systems, data and electricity management with EV charging service

1

Funding Rounds

$4.7m

Money raised

Pioneering cleantech company in area of cost-effective renewable energy production and nutrient recycling from wet biomass.

1

Funding Rounds

$28.0m

Money raised

Oddlygood is a processor of oat-based milks and yogurts as well as plant-based cheese and other dairy alternatives

1

Funding Rounds

$260.0k

Money raised

Clean energy company transforming kinetic fluid and gas energy into electrical energy.

1

Funding Rounds

$44.0m

Money raised

One Click Lca is a construction decarbonisation platform founded in 2001.

1

Funding Rounds

$930.0k

Money raised

Climate action planning platform for cities and governments.

1

Funding Rounds

$3.4m

Money raised

Platform connecting web3 technology to the real world through sustainable fashion.

Industries:

Location:

1

Funding Rounds

$3.2m

Money raised

Fiberwood is an eco-friendly wood fiber insulation founded in 2019.

Industries:

Location:

Sign up to access our full database

Enter your email and get access to 71,000 + technology companies you can partner with.

Join 29000+ founders, operators, and investors.