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Top 82 Clean (Renewable) Energy startups
Sep 09, 2025 | By Alexander Gillet | 22 |
Clean Energy startups generate and distribute energy from renewable sources, basically solar and wind.
1
Country: Australia | Funding: A$78.2M
The National Renewable Network is a linked network of solar and storage systems that transforms the way energy is supplied.
The National Renewable Network is a linked network of solar and storage systems that transforms the way energy is supplied.
2
Country: USA | Funding: $20.2B
Tesla accelerates the transition to electric mobility with a full range of increasingly affordable electric cars. Tesla also produces Solar Roof, home batteries and operates large solar stations with energy storage.
Tesla accelerates the transition to electric mobility with a full range of increasingly affordable electric cars. Tesla also produces Solar Roof, home batteries and operates large solar stations with energy storage.
3
Country: India | Funding: $3.7B
Avaada Energy is committed to provide affordable, clean and abundant power for India. For us, it is a new journey. A journey fuelled by our passion for sustainable energy and backed by our credentials and the trust of our stakeholders.
Avaada Energy is committed to provide affordable, clean and abundant power for India. For us, it is a new journey. A journey fuelled by our passion for sustainable energy and backed by our credentials and the trust of our stakeholders.
4
Country: USA | Funding: $3.2B
Sunnova provides low-cost solar power to homes. It owns the equipment, installs it, and also eventually sells the electricity it creates to customers.
Sunnova provides low-cost solar power to homes. It owns the equipment, installs it, and also eventually sells the electricity it creates to customers.
5
Country: UK | Funding: $2.9B
Octopus Energy develops cloud-based smart grid platform and provides fair prices forever and greener energy from the UK's largest investor in solar generation. It uses an innovative AI and data-based platform to balance loads around the grid.
Octopus Energy develops cloud-based smart grid platform and provides fair prices forever and greener energy from the UK's largest investor in solar generation. It uses an innovative AI and data-based platform to balance loads around the grid.
6
Country: USA | Funding: $2.1B
Silicon Ranch developer, owner and operator of solar energy facilities in US.
Silicon Ranch developer, owner and operator of solar energy facilities in US.
7
Country: Spain | Funding: $2B
ACCIONA is the development and management of infrastructure, renewable energy, water, and services.
ACCIONA is the development and management of infrastructure, renewable energy, water, and services.
8
Country: USA | Funding: $2B
Nexamp is bringing clean energy to homeowners and communities everywhere, and helping them save up to 10% on electricity costs without installing rooftop solar panels.
Nexamp is bringing clean energy to homeowners and communities everywhere, and helping them save up to 10% on electricity costs without installing rooftop solar panels.
9
Country: USA | Funding: $1.8B
Palmetto is the leading clean technology software and fulfillment company.
Palmetto is the leading clean technology software and fulfillment company.
10
Country: USA | Funding: $1.6B
Bright Night provides renewable power solutions in a safe and reliable way.
Bright Night provides renewable power solutions in a safe and reliable way.
11
Country: USA | Funding: $1.4B
energyRe is at the forefront of North America's energy transition. Building and delivering reliable clean power directly to where people live is not only our opportunity—it is our responsibility.
energyRe is at the forefront of North America's energy transition. Building and delivering reliable clean power directly to where people live is not only our opportunity—it is our responsibility.
12
Country: Sweden | Funding: $710M
Aira operates as a clean energy-tech company driving the clean energy revolution with air source heat pumps.
Aira operates as a clean energy-tech company driving the clean energy revolution with air source heat pumps.
13
Country: USA | Funding: $700M
AES Distributed Energy creates solar plus storage facilities, which includes systems that can hold and release solar energy at will.
AES Distributed Energy creates solar plus storage facilities, which includes systems that can hold and release solar energy at will.
14
Country: USA | Funding: $575.5M
Arcadia Power is a nationwide home energy platform providing clean energy and savings.
Arcadia Power is a nationwide home energy platform providing clean energy and savings.
15
Country: UK | Funding: £447M
OVO Energy is an independent energy technology company and supplier. OVO also installs world’s most advanced storage heaters
OVO Energy is an independent energy technology company and supplier. OVO also installs world’s most advanced storage heaters
16
Country: Australia | Funding: $306.5M
Brighte is a digital credit platform for financing home energy improvements.
Brighte is a digital credit platform for financing home energy improvements.
17
Country: Spain | Funding: $284.9M
Fotowatio Renewable Ventures is providing comprehensive renewable energy solutions across the globe.
Fotowatio Renewable Ventures is providing comprehensive renewable energy solutions across the globe.
18
Country: Germany | Funding: €259M
ZOLAR is an online provider of solar systems enables the entry into the private energy supply for private households.
ZOLAR is an online provider of solar systems enables the entry into the private energy supply for private households.
19
Country: Kenya | Funding: $270M
CrossBoundary is an investment company that dedicate its funds to commercial and industrial solar in Africa.
CrossBoundary is an investment company that dedicate its funds to commercial and industrial solar in Africa.
20
Country: Germany | Funding: €207.5M
ENVIRIA offers companies easy and safe access to scalable energy-as-a-service solutions and the renewable energy ecosystem.
ENVIRIA offers companies easy and safe access to scalable energy-as-a-service solutions and the renewable energy ecosystem.
