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Startups in the renewable energy field are tackling the world's power needs from many different angles. This has led to large funding rounds for companies across the globe.
For instance, companies like Commonwealth Fusion Systems have raised over $2 billion for fusion energy. Others, like Koolboks, are focused on specific needs such as solar powered freezers.
Below is our list of 100 Renewable Energy startups worth keeping an eye on.
Everything you need to raise funding for your startup, including 3,500+ investors, 7 tools, 18 templates and 3 learning resources.
Buy It For $97 $297 →Information about the industries, countries, and cities they generally invest in.
Get the Sheet for $50Information about their valuation, HQ's location, founded year, name of founders, funding amount and number of employees.
Get the Sheet for $50List of startup investors in the BioTech, Health, and Medicine industries, along with their Twitter, LinkedIn, and email addresses.
Get the Sheet for $50List of 250 startup investors in the AI and Machine Learning industries, along with their Twitter, LinkedIn, and email addresses.
Get the Sheet for $50List of 250 startup investors in the FinTech and Finance industries, along with their Twitter, LinkedIn, and email addresses.
Get the Sheet for $50Tether builds AI software that turns millions of parked electric vehicles into the world’s largest battery. Their platform manages this distributed energy network, helping to balance the power grid and integrate more renewable sources.
Commonwealth Fusion Systems builds compact and powerful fusion devices designed to deliver clean, limitless energy on a commercial scale. Their technology, spun out of research from MIT, uses high-temperature superconducting magnets to create a faster and more efficient path to fusion power.
X-energy develops advanced modular nuclear reactors and the fuel technology required for clean energy generation. Their work focuses on creating safer and more scalable nuclear power solutions to support a zero-carbon future.
Helion Energy is developing fusion power technology to generate clean electricity. Their work focuses on creating commercially viable fusion generators that can provide a limitless source of zero-carbon energy.
Torus designs and manufactures integrated energy storage systems for residential and commercial use. Their flagship product, the Torus Station, helps customers store power from renewable sources to gain more control and independence from the traditional grid.
Masdar develops and operates a global portfolio of renewable energy projects, specializing in solar, wind, energy storage, and geothermal technologies. They are a major force in the world's clean energy transition, with a presence in dozens of countries.
Unbound Potential develops and provides large-scale energy storage systems for various applications. Their advanced battery technology is designed to make renewable energy sources more stable and dependable for industrial and grid use.
Radiant develops portable nuclear microreactors to provide clean energy for remote applications and disaster relief efforts. Their Kaleidos reactor is designed to be meltdown-proof, using advanced particle fuel that can be safely operated by a small team.
Fourth Power builds thermal battery systems that store renewable energy for the power grid. Their technology converts electricity into heat, stores it efficiently, and then turns it back into electricity on demand.
Koolboks manufactures solar-powered freezers and ice makers that provide continuous refrigeration. Their technology gives businesses and households in off-grid areas a reliable way to store perishable goods.
The top 10 are just a small slice of what’s happening in renewable energy. New companies are popping up everywhere, and they’re all tackling the problem in different ways.
Together, these startups have attracted tens of billions in funding, with some just getting started and others scaling up fast. Here’s a look at the other 90 companies helping to shape the future of energy.
| Startup | Main Industry | Year Founded | Amount Raised | Last Funding Round |
|---|---|---|---|---|
| Energy | 2002 | $392M | Venture Round | |
| Energy | 2018 | $229.8M | Series B | |
| Energy | 2020 | $64M | Series B | |
| Energy | 2016 | $26.6M | Series C | |
| Biotech | 2021 | $54.1M | Series B | |
| Energy | 2017 | $18.2M | — | |
| Energy | 2019 | $25.4M | Seed | |
| Energy | 2022 | $1.9B | Debt Financing | |
| AgTech | 2018 | $90.9M | Series B | |
| Hardware | 2020 | $30.3M | Grant | |
| Energy | 2017 | $3.5B | Undisclosed | |
| Energy | 2013 | $106.6M | Venture Round | |
| Energy | 2016 | $55.6M | Venture Round | |
| Energy | 2022 | $100.7M | Venture Round | |
| Hardware | 2021 | $240M | Series D | |
| Environment | 2022 | $93.6M | Grant | |
| Energy | 2020 | $299.5M | Series B | |
| Fintech | 2003 | $1.2B | Debt Financing | |
| AI | 2025 | $850k | Seed | |
| Mobility | 2009 | $310.8M | Undisclosed | |
| Fintech | 2017 | $39.1M | Debt Financing | |
| Energy | 1981 | $1B | Debt Financing | |
| Manufacturing | 2013 | $240M | Debt Financing | |
| Energy | 2021 | $20M | Series A | |
| Energy | 2015 | $76.8M | Series B | |
| Environment | 2007 | $329.3M | Series D | |
| Energy | 2020 | $298.3M | Venture Round | |
| Hardware | 2012 | $352.6M | Venture Round | |
| Energy | 2019 | $1.5B | Debt Financing | |
| Energy | 2017 | $60.1M | Series B | |
| Hardware | 2016 | $320M | Undisclosed | |
| Energy | 2023 | $65M | Series A | |
| Analytics | 2011 | $100.7M | Venture Round | |
| Hardware | 2020 | $113.6M | Venture Round | |
| Energy | 2017 | $551.5M | Private Equity | |
| Energy | — | $557.7M | Debt Financing | |
| Environment | 2007 | $505.3M | Grant | |
| Energy | 2021 | $151.7M | Debt Financing | |
| Energy | 2012 | $151.7M | Series A | |
| Hardware | 2017 | $1.6B | Debt Financing | |
| Hardware | 2020 | $61.5M | Grant | |
| Analytics | 2016 | $139.6M | Series D | |
| Energy | 2000 | $2.6B | Debt Financing | |
| Enterprise | 2001 | $10.5B | Debt Financing | |
| Energy | 2020 | $9M | Seed | |
| Manufacturing | 2022 | $7M | Seed | |
| Manufacturing | 2018 | $649.5M | Equity Crowdfunding | |
| Hardware | 2021 | $29.1M | Series B | |
| AI | 2024 | $500k | Pre-Seed | |
| Energy | 2006 | $676M | Undisclosed | |
| Energy | 2009 | $7.7B | Debt Financing | |
| Fintech | 1997 | $4.1B | Debt Financing | |
| Mobility | 2009 | A$150M | Corporate Round | |
| Energy | 2009 | $7M | Grant | |
| Mobility | 2021 | $652.5M | Venture Round | |
| Hardware | 2009 | $357.5M | Debt Financing | |
| Hardware | 1999 | $162.2M | Debt Financing | |
| Energy | 2010 | ₹23.7B | Secondary Market | |
| Energy | 2005 | $3.2B | Debt Financing | |
| Hardware | 2021 | A$1.2B | Debt Financing | |
| Energy | 2021 | $8.5M | Series A | |
| Energy | 2009 | $940M | Debt Financing | |
| Energy | 2023 | $900M | Series A | |
| Mobility | 2024 | £60M | Debt Financing | |
| Energy | 2017 | CA$14.7M | Series A | |
| Energy | 2020 | $10.9B | Debt Financing | |
| Energy | 2018 | $23M | Series B | |
| Energy | 2018 | $2.1B | Undisclosed | |
| Energy | 2011 | $548M | Debt Financing | |
| Energy | 2009 | $149.9M | Debt Financing | |
| Hardware | 2022 | $121.4M | Debt Financing | |
| Environment | 2020 | $202M | Venture Round | |
| Manufacturing | 2019 | $115M | Series A | |
| Energy | 2015 | $1.5B | Debt Financing | |
| Analytics | 2017 | $789.6M | Debt Financing | |
| Energy | 2022 | $18.6M | Series A | |
| Security | 2017 | $27.2M | Venture Round | |
| Mobility | 2009 | $473.4M | Series E | |
| Environment | 2006 | £120M | Debt Financing | |
| Energy | 2016 | $1.4B | Debt Financing | |
| Environment | 2016 | $19.3M | Venture Round | |
| Energy | 2014 | $575.5M | Series E | |
| Energy | 2017 | $1.5B | Debt Financing | |
| Energy | 2021 | $24.3M | Venture Round | |
| Energy | 2017 | $480M | Debt Financing | |
| Energy | 2011 | $2.1B | Private Equity | |
| Energy | 2021 | $38M | Series A | |
| Environment | 2018 | $187.5M | Debt Financing | |
| Energy | 2019 | $297M | Corporate Round | |
| Mobility | 2016 | $30M | Private Equity |
