Best Sustainability Tech Companies in Helsinki, Finland
The 65 best Sustainability Tech companies in Helsinki, Finland in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: One Click LCA.
Our analysis of 293 Sustainability Tech companies
$38.4b in tracked funding; 83% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Sustainability Tech companies in Helsinki
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Air0 Manufacturer of air purification devices and indoor air quality sensors | — | — | — | 2013 | Valle Kulmala Co-Founder & CEO | WordPressMySQLPHP+24 | 10 patents Advanced electrically enhanced indoor air purification systems for construction sites | — |
| 2 | Aircohol Online platform offering carbon capture solutions | — | — | — | 2015 | Simo Hämäläinen Founder & CEO | — | 5 patents Optimizing microbial bioreactors for biomass yield and carbon capture | — |
| 3 | Aquamatrix Cloud-connected water meter provider | — | — | — | 2017 | Matti Leppaniemi CEO | — | — | — |
| 4 | Biocode Platform offering carbon footprint tracking solution for food businesses | — | — | 11 | 2017 | Ernesto Hartikainen Chief Executive Officer | WordPressMySQLPHP+24 | — | — |
| 5 | Biohit Healthcare Diagnostics products and servcies | — | — | 42 | 1988 | — | WordPressMarkerMySQL+28 | — | — |
| 6 | Clouder Cloud-based building management platform | — | — | — | 2023 | Tomi Grönlund CEO & Founder | Apple iCloud MailTailwind CSSAstro+5 | 4 patents Virtualized cable network configuration and management for broadband service provisioning | 1 partnership |
| 7 | CO2API Provider of API that delivers emission factors for environmental impact calculations | — | — | — | 2023 | Matti Toivonen Co-Founder & CEO | — | — | — |
| 8 | Compensate Online platform to offset the carbon footprint | — | — | — | 2019 | Antero Vartia Founder | ScullyContentfulTypeScript+19 | — | — |
Top 12 Sustainability Tech companies in Helsinki
#1
Acquired · Helsinki, Uusimaa · founded 2018 · 22 employees$12.8Mraised▾
Provider of a carbon removal standard and registry. It offers a standard focused solely on carbon removal, ensuring durable carbon storage. The platform connects corporate buyers with carbon removal suppliers, facilitating the purchase of CO2 Removal Certificates (CORCs). It certifies suppliers that physically remove carbon dioxide from the atmosphere, contributing to net-negative emissions. The platform also provides resources and tools to support both buyers and suppliers in the carbon removal market.
- Sep 2025Series B$12.8M
#2
Series B · Helsinki, Uusimaa · founded 2016 · 20 employees$25.2Mraised▾
Developer of immunotherapies for cancer and infectious disease. The company uses immunogenic viruses as active carriers of tumor-specific peptides to direct the immune system to specifically target and kill cancer cells. The proprietary PeptiCRAd platform, an oncolytic adenovirus with immunogenic tumor peptides adsorbed onto the negatively charged viral capsid.
- Mar 2025Series B$20.6M
- Apr 2023Grant (prize money)$326.1K
- Nov 2021Series A$12.8M
- Feb 2020Seed$1.2M
#3
Seed · Helsinki, Uusimaa · founded 2022 · 9 employees$3Mraised▾
Online platform offering grid management solutions. It provides smart electricity management combined with demand response in households. It enables households to use electricity which produced from renewable sources, which help save money on electricity bills and balance out the grid.
#4
Late Stage · Helsinki, Uusimaa · founded 2001 · 35 employees$43.8Mraised▾
Provider of lifecycle assessment software for construction and manufacturing industries. The company offers software solutions for buildings, infrastructure, and manufacturing sectors. It provides tools for environmental product declaration generation, product carbon footprint assessment, and early design decarbonization. The company's software supports compliance with regulations and certifications, integrates with BIM and other platforms, and automates the EPD process. It serves architects, contractors, developers, engineers, consultants, and manufacturers in various industries, including construction products, mechanical and electrical products, transport, power and utilities, and mining.
- Nov 2023PE$43.8M
#5
Series A · Helsinki, Uusimaa · founded 2019 · 9 employees$162Kraised▾
Provider of AI and computer vision-based weather forecasting systems. Its product portfolio includes storm tracker software and weather instruments. Its software has features like neural network-based weather and storm prediction using satellite images, historical catalogs of storm intensities, and dropsonde measurement. Its weather sonde utilizes IoT-based sensors and slow descent features.
- Mar 2025Series A$4.2M
- Dec 2022Grant (prize money)$4M
- Sep 2020Grant (prize money)$59.2K
- Feb 2020Seed$162K
#6
Series C · Helsinki, Uusimaa · founded 2016 · 34 employees$17.7Mraised▾
Manufacturer of bio-based, biodegradable plastic alternatives. It offers sustainable replacements for conventional plastics across various applications, including cosmetics, food services, and 3D printing. The materials are compatible with existing plastic processing machinery, facilitating a smooth transition for manufacturers. The company provides both raw materials and ready-made products through a network of partners. Its materials fully biodegrade without leaving microplastics.
- May 2023Series C$6.4M
- Apr 2023Conventional Debt—
- Dec 2022Series C—
- Oct 2020Grant (prize money)$58.3K
#7
Seed · Helsinki, Uusimaa · founded 2014 · 23 employees$5.2Mraised▾
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- Feb 2023Seed—
- Jun 2022Conventional Debt$5.1M
- May 2019Grant (prize money)$109.1K
- Mar 2015Angel—
#8
Funding Raised · Helsinki, Uusimaa · founded 2011 · 215 employees$1.3Mraised▾
SaaS-based platform energy plant management. It provides solutions for the energy market service, energy metering service, customer invoicing, monitoring service, exchange service, and others.
- Dec 2023Grant (prize money)$109.7K
- Oct 2021Grant (prize money)$299.1K
- Nov 2020Grant (prize money)$422.7K
- Oct 2020Grant (prize money)$505.6K
#9
Series A · Helsinki, Uusimaa · founded 2014 · 18 employees$5.8Mraised▾
Tera Loop is developing a large scale flywheel based Energy Storage System. The company claims that their product can store 500MW, with a capacity of up to 16GWh of power to be used by the grid. They products are to be installed underground leaving minimal environmental footprint, while staying conveniently out of sight.
- Apr 2021Grant (prize money)$60.6K
- Oct 2020Grant (prize money)$168.5K
- May 2019Grant (prize money)$2.7M
- Mar 2019Grant (prize money)$2.7M
#10
Seed · Helsinki, Uusimaa · founded 2020 · 9 employees$931.7Kraised▾
Developer of software for cities to manage climate action plans. The software facilitates collaboration among stakeholders and transparent communication of progress. It enables users to manage strategies and monitor the effects of actions. The platform provides tools for setting targets and making climate work visible and measurable.
- Oct 2023Seed$931.7K
#11
Late Stage · Helsinki, Uusimaa · founded 1988$23.1Mraised▾
Manufacturer of air purification equipment and medical grade respiratory masks. Products include air purifiers for indoor environments, ventilation duct cleaning machinery, and protective face coverings. These devices remove airborne particles and contaminants to maintain air quality in residential and commercial settings. The equipment utilizes filtration technology to capture fine particles and gases. Additional offerings include cleaning robots and cameras designed for maintenance of ventilation systems.
#12
Acquired · Helsinki, Uusimaa · founded 2004 · 57 employees$17.1Mraised▾
Provider of AI-powered robotic solutions for waste separation. It develops and offers a waste sorting system that separates raw materials from waste. The system has been equipped with infrared spectrum sensors, a 3D sensor system, an RGB camera, and a metal detector for the waste identification process. The robotic arm consists of a gripper that can identify and pick multiple-sized objects of different weights. The robotic operations are controlled by a proprietary machine-learning platform.
- Dec 2016Grant (prize money)$1.5M
- Jul 2015Grant (prize money)$1.6M
- Aug 2014Grant (prize money)—
- Sep 2012Series A$17.1M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Sustainability Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
What Helsinki researches in climate adaptation
- University of Helsinki12
- Helsinki Art Museum1
- Demos Helsinki1
- Helsinki Institute for Information Technology1
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.