Best Environment Companies in Stockholm, Sweden
The 67 best Environment companies in Stockholm, Sweden in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Elvy Energy.
Our analysis of 309 Environment companies
$75.8b in tracked funding; 79% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Environment companies in Stockholm
| # | Company | Last round | Disclosed funding | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Aligera Independent power producer | — | — | — | Jorgen Bender Founder & CEO | — | — | — | — |
| 2 | Alnarp Cleanwater Developer of bio-based wastewater treatment solution | — | — | — | Susanne Gabrielson CEO & MD | Cart FunctionalityWooCommerceWordPress+23 | Top 5M | 5 patents Plant-based phytoremediation systems for sewage and wastewater treatment | — |
| 3 | Ap7 Provider of state-sponsored default pension fund management. | — | — | 3 | — | WordPressMySQLPHP+23 | Top 1M | — | — |
| 4 | Beccs Provider of carbon dioxide capture and storage services | — | — | — | Anders Egelrud CEO | WordPressMySQLPHP+18 | Top 10M | — | 1 partnership |
| 5 | Berner Industrier Provider of lower emission and working environment services | — | — | — | Caroline Reuterskiold CEO | WordPressMySQLPHP+11 | Top 10M | — | — |
| 6 | BIG BAG Provider of waste management services | — | — | 35 | — | DrupalPHPVimeo+13 | Top 5M | — | — |
| 7 | Bluewater Provider of water purifier services | — | — | — | Bengt Rittri CEO | SanityShopifyHeadless UI+24 | Top 5M | — | 1 launch |
| 8 | Bright Sunday Developer of solar energy projects | — | — | 12 | Erik Strandberg Group Chief Financial Officer (Co-founder) | WordPressMySQLPHP+30 | Top 50M | — | — |
Top 12 Environment companies in Stockholm
#1
Series A · Stockholm, Stockholm County · founded 2023$592.9Mraised▾
Provider of fixed-price energy subscriptions including solar, heat pump, battery. The subscriptions cover installation, service, maintenance, and repairs for a fixed monthly cost. The service includes energy analysis to determine the optimal energy system. The subscriptions aim to reduce energy costs and increase energy independence.
- May 2026Series A$6.9M
- Dec 2025Conventional Debt$585.9M
#2
Series C · Stockholm, Stockholm County · founded 2013$7.3Mraised▾
Blykalla is a Swedish deep-tech startup that is developing and building small modular reactors to deliver clean, safe, and scalable base load power. They are at the forefront of technological innovation in the energy sector and are focused on industrializing leading research.
- Dec 2025Series C$50M
- Feb 2025Series B$15.7M
- Feb 2025Grant (prize money)$2.6M
- Apr 2024Series A$7.3M
#3
Series A · Stockholm, Stockholm County · founded 2019 · 19 employees$8.6Mraised▾
Developer nuclear energy projects
- Mar 2025Series A$10.9M
- Aug 2023Seed$5.4M
- Dec 2022Seed$3.1M
- Dec 2022Grant (prize money)—
#4
Seed · Stockholm, Stockholm County · founded 2022$5.5Mraised▾
Provider of carbon credits solutions
- Jun 2024Seed$5.5M
#5
Acquired · Stockholm, Stockholm County · founded 2013 · 132 employees$39.4Mraised▾
Manufacturer of solar roof tiles or building integrated photovoltaic tiles. It uses monocrystalline solar cells sandwiched between two large sheets of glass which reduces the number of connections and makes it cheaper.
- Jan 2023Series A$14.6M
- Sep 2022Series A$15.2M
- Apr 2021Seed$5.4M
- Dec 2020Seed$1.8M
#6
Series A · Stockholm, Stockholm County · founded 2017 · 47 employees$5.8Mraised▾
Provider of AI-driven energy optimization solutions for commercial buildings. It offers solutions that optimize heating, cooling, and ventilation using AI and engineering insights. The system is designed as a retrofit to improve energy efficiency. It provides add-on services for spot price optimization and power load reduction, utilizing building's capacity to store heat or cold. The solutions focus on reducing energy consumption, lowering operational costs, and aligning with sustainability goals and regulatory compliance.
- Feb 2024Series A$5.8M
#7
Series A · Stockholm, Stockholm County · founded 2018 · 12 employees$6.5Mraised▾
Provider of water management services
- Jan 2023Series A$6.5M
#8
Acquired · Stockholm, Stockholm County · founded 2013 · 43 employees$14Mraised▾
Developer of solar energy projects
- May 2017Series B$11.3M
- Oct 2015Series A$2.7M
#9
Series A · Stockholm, Stockholm County · founded 2009 · 31 employees$12.1Mraised▾
Developer of floating wind energy projects
- Apr 2016Series A$3.1M
- Nov 2014Series A$7.5M
- Sep 2014Series A$1.6M
#10
Seed · Stockholm, Stockholm County · founded 2015 · 14 employees$1.8Mraised▾
Provider of water savings services
- May 2019Grant (prize money)$55.7K
- Mar 2019Grant (prize money)$56.9K
- Dec 2018Seed$1.8M
#11
Funding Raised · Stockholm, Stockholm County · founded 2009 · 23 employees$2.1Mraised▾
It is a Nordic greentech company that specializes in producing circular bioenergy and plant nutrition by recycling organic waste. They are one of the largest biogas producers in the Nordics and are committed to contributing to a sustainable transition from fossil to renewable energy.
- Sep 2015Grant (prize money)$2.1M
#12
Funding Raised · Stockholm, Stockholm County · founded 2007$884.7Kraised▾
Provider of carbon capture and storage services
- Jul 2020Grant (prize money)$332.2K
- Nov 2018Grant (prize money)$552.4K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Environment coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
What Stockholm researches in environmental monitoring
- Stockholm University28
- Stockholm Environment Institute2
- Stockholm Resilience Centre2
- Stockholm County Council1
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.