Best Energy Companies in Uusimaa, Finland
The 56 best Energy companies in Uusimaa, Finland in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Ilmatar.
Our analysis of 441 Energy companies
$135.1b in tracked funding; 76% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy companies in Uusimaa
| # | Company | Last round | Disclosed funding | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 21TDMC Manufacturer of motors for geo-thermal energy sector | — | — | 1 | Samuli Penttinen Co-Founder & CTO | — | — | 5 patents Waste‑heat recovery and flue‑gas cleaning technologies for power generation systems. | — |
| 2 | Aetlan Provider of energy and infrastructure analytics services | — | — | 1 | Shaheer Hussam Co-Founder & CEO | — | — | — | — |
| 3 | Arctic Impulse Energy company that is developing advanced immersion cooling solutions for applications, such as electric… | — | — | — | Jussi Kakkonen Founder & CEO & COB | — | — | 5 patents Battery thermal management and power supply systems for electronic components | — |
| 4 | Biotehdas Developer of bioenergy project | — | — | 18 | — | — | — | — | — |
| 5 | DustComb Solid fuels production technology | — | — | — | Henri Lohilahti CEO | — | — | — | — |
| 6 | EKOenergy Nonprofit ecolabel for renewable energy with extra sustainability criteria | — | — | 4 | — | WordPressMySQLPHP+22 | Top 5M | — | — |
| 7 | Electro Waves Provider of LED lighting and digital signage services | — | — | — | Miko Nurkki CEO | WordPress Block EditorWordPressMySQL+27 | Top 10M | — | 1 launch · 1 partnership |
| 8 | Eltel Networks Provider of technical services for power transmission and distribution networks | — | — | — | Juha Luusua CEO Eltel Finland | WordPressMySQLPHP+13 | Top 50M | 17 patents Power line maintenance tools and grid disturbance detection sensors | — |
Top 12 Energy companies in Uusimaa
#1
Public · Espoo, Uusimaa · founded 1998 · 8785 employees$114.8Mraised▾
Provider of clean energy solutions. The company offers electricity generation and heat production, electricity retail sales, district heating and cooling, and services for smart living. It also provides power trading services for energy-intensive industries and products and services for nuclear and thermal power plants. The company focuses on decarbonization and a transition to a carbon-neutral economy. Its offerings support industrial electrification and aim to meet customer needs for reliable energy.
- Jul 2025Grant (prize money)$99.1M
- Dec 2021Grant (prize money)$11.3M
- Jul 2021Grant (prize money)$265.7K
- Nov 2020Post IPO—
#2
Series B · Espoo, Uusimaa · founded 2021 · 9 employees$26.2Mraised▾
Developer of solar and wind energy projects
- Dec 2025Series B$18.8M
- Dec 2022Series B$26.2M
#3
Series C · Espoo, Uusimaa · founded 2023$13.1Mraised▾
Provider of nuclear engineering solutions to introduce zero-emission heating plants
- Jul 2025Series C$37.6M
- Mar 2025Series B$23.2M
- Mar 2024Series A$10.9M
- Jun 2023Seed$2.2M
#4
Late Stage · Helsinki, Uusimaa · founded 2011 · 85 employees$244Mraised▾
Operator of an energy company aimed at producing and selling renewable energy to consumers and businesses. The company specializes in the development, construction management, operational asset management and retail sales of renewable energy by operating wind farms, enabling clients to get a clean source of energy.
#5
Public · Espoo, Uusimaa · founded 2017 · 5297 employees$102.2Mraised▾
Manufacturer of renewable diesel, sustainable aviation fuel, and feedstocks. It refines waste, residues, and other raw materials into renewable fuels. The company provides solutions for mitigating climate change and accelerating a shift to a circular economy. It offers career opportunities for professionals with diverse backgrounds and expertise.
- Jul 2022Grant (prize money)—
- Nov 2021Grant (prize money)$99.9M
- Apr 2020Grant (prize money)$165.7K
- Jan 2020Grant (prize money)$199.7K
#6
Funding Raised · Helsinki, Uusimaa · founded 2017 · 30 employees$83.4Mraised▾
Manufacturer of wood pulp process for oil and gas industries
- Jun 2021Conventional Debt$83.4M
#7
Acquired · Espoo, Uusimaa · founded 2000 · 130 employees$174Mraised▾
WinWinD is a wind turbine manufacturer that has manufactured and supplied wind turbines with a capacity of 1 and 3 MW. The company has assembly factories in Hamina, Finland, and Chennai, India. WinWinD turbines are sold globally and they produce energy in Sweden, Estonia, France, Portugal, the Czech Republic and India. The company was acquired by SIVA Group in 2006 and later Masdar acquired 40% in 2008.Finnish investment fund, Suomen Teollisuussijoitus also has significant stake in the company.
- Sep 2008PE$174M
#8
Series C · Helsinki, Uusimaa · founded 2009 · 70 employees$6.3Mraised▾
Sustainable biogas and fertilizer solutions from organic waste, promoting circular economy. The company provides solutions addressing environmental challenges in energy and agriculture, transforming waste into sustainable organic fertilizers and renewable biogas energy. They build, own, and operate facilities, repurposing organic resources for carbon-reduced fertilizers and renewable energy. The company focuses on sustainability, offering products and services in the energy and fertilizer sectors. They are dedicated to a circular future, promoting fairness, honesty, integrity, identification, and cooperativeness. They are always looking for new talents to join the family. They are an Equal Opportunity Employer.
- May 2023Series C—
- Oct 2020Series B—
- Jul 2018Grant (prize money)$1.7M
- Dec 2017Series A—
#9
Seed · Helsinki, Uusimaa · founded 2020 · 7 employees$2.6Mraised▾
Provider of investment and maintenance the geothermal system
#10
Seed · Espoo, Uusimaa · founded 2018 · 6 employees$4.1Mraised▾
Developer of software-defined power converters for efficient and reliable energy solutions. These converters adapt to changing conditions, optimizing power conversion processes. The technology enables flexible control over output voltages and current levels. The converters are suitable for applications including solar panels, electric vehicles, and smart grids. The company’s technology simplifies maintenance with remote diagnostics and troubleshooting capabilities.
- May 2023Seed$4.1M
- May 2023Conventional Debt$1.8M
#11
Seed · Helsinki, Uusimaa · founded 2023$513.4Kraised▾
Hytrade | We accelerate the energy transition
#12
Funding Raised · Espoo, Uusimaa · founded 2017 · 1800 employees$2.8Mraised▾
Sumitomo SHI FW, a joint venture of Sumitomo Heavy Industries and Amec Foster Wheeler, supplies and installs circulating fluidized bed (CFB) steam generating units for industries such as utility power plants, combined heat and power plants, waste-to-energy plants and industrial steam power plants. Provides biomass gasifiers, CFB boilers, CFB scrubbers, BFB boilers and metallurgical waste boilers. Designed and supplied 2 CFB boilers for Shaw Group & Cleco Power, a 10MW Bubbling Fluidized Bed steam generator for Ingeteam Power Plants and many others.
- Jul 2021Grant (prize money)$387.2K
- Jun 2021Grant (prize money)$410.6K
- Apr 2020Grant (prize money)$324.8K
- Sep 2019Grant (prize money)$524.7K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy 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 Finland
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 218 Finland-affiliated papers.
- Aalto University73
- Lappeenranta-Lahti University of Technology54
- Tampere University24
- University of Oulu22
- University of Vaasa16
- Renewable energy1→8
- Electricity1→4
- Renewable energy39
- Battery (electricity)28
- Electricity19
- Photovoltaic system15
- Power (physics)13
- Renewable energy11
- Battery (electricity)6
- Environmental economics4
- Electrical engineering3
- Electric vehicle3
Where energy storage is researched across Finland
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.