The clean energy industry is expanding with support from various accelerator and incubator programs. These programs provide essential funding and mentorship to help early-stage companies grow.
Some programs have large portfolios, like Techstars with over 6,300 investments. Others, such as IIT Mandi Catalyst, have also backed hundreds of companies with over 300 investments.
Below is our list of the best 18 Clean Energy accelerators and incubators.
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2,189 Accelerators & Incubators
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1,600+ Unicorns
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250 AI Investors
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Get the Sheet for $50Techstars fuels the growth of early-stage startups with pre-seed investment and hands-on mentorship across dozens of industries. Its globally recognized accelerator programs equip founders with the capital and connections needed to build successful companies.
| Headquarters | Boulder, Colorado, United States |
| Year Founded | 2006 |
| Founders | Jakub Kulisa, Nikita Gupta, Jared Polis, Brad Feld, Asetila Koestinger Von Sonnenland, David Brown, Mike Romano, David Cohen |
| Investment Amount | $220,000 ($200K uncapped MFN SAFE + $20K for 5% equity) |
| Equity Taken | 5% + SAFE conversion |
| Nº of Investments | 6394 |
| Nº of Exits | 570 |
| Program Type | On-Site |
| Duration (Weeks) | 13 |
AcceliCITY champions startups that are building the next generation of smart city solutions, focusing on sustainability and urban resilience. Recognized as a top global Govtech accelerator, they connect innovative companies with the resources needed to tackle complex city-wide challenges.
| Headquarters | Boston, Massachusetts, United States |
| Year Founded | 2010 |
| Founders | Michael Lake |
| Nº of Investments | 392 |
| Nº of Exits | 15 |
| Program Type | Online |
| Duration (Weeks) | 9 |
EIT InnoEnergy helps catalyze the global energy transition by investing in and supporting startups focused on sustainable energy solutions. They provide innovators with a comprehensive ecosystem, including funding and strategic partnerships, to scale their clean technologies from concept to commercial impact.
| Headquarters | Eindhoven, Noord-Brabant, The Netherlands |
| Year Founded | 2010 |
| Founders | Elena Bou, Diego Pavía |
| Nº of Investments | 248 |
| Nº of Exits | 8 |
| Program Type | On-Site |
| Duration (Weeks) | 5 |
As an investment company and accelerator, Katapult backs highly scalable startups focused on creating a positive global impact. Their program supports companies developing solutions within the climate, ocean, and agri-tech industries.
| Headquarters | Oslo, Oslo, Norway |
| Year Founded | 2017 |
| Founders | Tharald Nustad, Anders Lier, Haakon Brunell, Rajeev Kapoor |
| Nº of Investments | 116 |
| Nº of Exits | 5 |
| Program Type | Online |
| Duration (Weeks) | 12 |
Upward helps launch and scale startups dedicated to decarbonizing the real estate industry. Through its Net Zero Lab, the program supports founders building solutions in clean energy, construction tech, and energy efficiency to accelerate the path to a net-zero built environment.
| Headquarters | New York, New York, United States |
| Year Founded | 2016 |
| Founders | Shana Schlossberg |
| Nº of Investments | 31 |
| Nº of Exits | 2 |
| Program Type | Online |
| Duration (Weeks) | 13 |
Accelerating Asia champions pre-Series A startups across Southeast and South Asia through its early-stage venture capital fund and accelerator. The program equips founders with investment and connects them to a powerful network of mentors and partners to scale their businesses in the region.
| Headquarters | Singapore, Central Region, Singapore |
| Year Founded | 2018 |
| Founders | Craig Dixon, Amra Naidoo |
| Nº of Investments | 98 |
| Nº of Exits | 2 |
| Program Type | On-Site |
| Duration (Weeks) | 12 |
As the incubation and acceleration arm of the Indian School of Business, DLabs champions a design-led approach to building new ventures. They support early-stage startups across diverse sectors including FinTech, Healthcare, and Clean Energy by providing critical resources and mentorship.
| Headquarters | Hyderabad, Andhra Pradesh, India |
| Year Founded | 2015 |
| Founders | — |
| Nº of Investments | 128 |
| Nº of Exits | 2 |
| Program Type | On-Site |
| Duration (Weeks) | 52 |
Operating as a world-leading research hub for nanoelectronics, imec helps deep-tech startups bridge the gap between advanced R&D and commercialization. The organization provides entrepreneurs with access to its innovation ecosystem and accelerator program to build solutions in fields like healthcare and clean energy.
| Headquarters | Leuven, Vlaams-Brabant, Belgium |
| Year Founded | 1982 |
| Founders | Roger Van Overstraeten |
| Nº of Investments | 13 |
| Nº of Exits | 1 |
As the first technology business incubator in Himachal Pradesh, IIT Mandi Catalyst propels early-stage startups with funding and mentorship in a distinctively low-cost, high-tech setting. They specialize in building ventures from the ground up in critical industries such as agriculture, healthcare, and clean energy.
| Headquarters | Mandi, Himachal Pradesh, India |
| Year Founded | 2016 |
| Founders | — |
| Nº of Investments | 311 |
| Nº of Exits | 1 |
Yunus Social Business champions social entrepreneurs dedicated to solving fundamental issues within developing and emerging nations. Through their accelerator programs, they help build sustainable businesses that provide access to essentials like healthcare, clean energy, and education.
| Headquarters | Berlin, Berlin, Germany |
| Year Founded | 2011 |
| Founders | Saskia Bruysten, Oyeniyi Yunus |
| Nº of Investments | 12 |
| Nº of Exits | 1 |
8 Additional Clean Energy Accelerators and Incubators Worth Applying To
The programs we've highlighted so far are just the beginning. These additional accelerators have collectively invested in over 170 startups, with programs running from the United States to Turkey.
They represent a growing global network of support for entrepreneurs tackling climate challenges. Here’s a look at the other accelerators helping founders in the clean energy space.