List: 114 Technology Accelerators for Sustainability, Green IT and Climate Tech Startups

Here are accelerators 101 to 110.

101. TotalEnergies On accelerator program: This accelerator program supports start-ups "developing innovative solutions in the electricity and renewable energy sectors."

102. Toyota Open Labs: The organization nurtures sustainability startups across five market segments -- energy, circular economy, carbon neutrality, smart communities and mobility for all.

103. TRUK Accelerator: Organized by NEOHUB AND Oxentia, the TRUK accelerator in mid-2025 graduated its first cohort of startups focused on climate tech, circular economy, carbon management, sustainable logistics, and green materials.

104. United Nations Accelerator: The United Nations Development Programme (UNDP) in Europe and Central Asia has launched the BOOST x CEF: Green Urban Tech open call. The call "seeks solutions that can turn real-time data into greener decisions, engage residents in sustainable lifestyles, and help build urban systems that are more resilient to climate and other risks," UNDP reported.  Program participants can compete for up to US$30,000 in funding to adapt, pilot, or implement solutions in 2026.

105. University of Washington Climate Tech Incubator: Driven by the university's CoMotion Labs, six startups participated in the inaugural incubator in mid-2025.

106. Unreasonable Food: Launched by Mars and Unreasonable Group, the Unreasonable Food accelerator supports startups that focus on four business areas: Shaping the Future of Food, Improving Farmer Livelihood, Transforming Food Supply Chains and Reimagining Sustainable Packaging. The Year 1 Cohort, announced in April 2024, included 15 startups.

107. Venture For ClimateTech: The organization in January 2024 opened applications for its fourth cohort. ClimateTech startups can apply to join the accelerator here. Venture For ClimateTech provides cohort teams with up to $50,000 in non-dilutive funding, along with one-on-one mentoring, access to investors, and educational programming to prepare early-stage companies for first customers, pilot runs, and investment, the organization said.

108. Wells Fargo Innovation Incubator (IN²): As of August 2024, this was a $50 million clean technology program funded by the Wells Fargo Foundation and co-administered by the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL).

• The program selected 10 organizations in August 2024 to participate in the inaugural cohort of the new Scalable Tech Track program for cleantech adoption. Moreover, IN² as of that time was accepting applications from cleantech startups ready for large-scale pilots with at least one year of post-revenue traction.
• The program in November 2024 selected three startups for its next cohort in the Emerging Tech Track. The startups are Blip Energy of Chicago, Illinois; Evercloak of Ontario, Canada; and Transaera of Somerville, Massachusetts.

109. Women in Tech Accelerator: For its 2025 cohort, the Standard Chartered Kenya and Strathmore University’s Women in Tech Accelerator attracted 84 applications, with 15 startups selected for a 12-week accelerator program, Dawan Africa reported. The program focused on sustainability, ESG integration, financial modlling, and product development.

110. Ycombinator ClimateTech: The accelerator of of February 2024 has funded more than 100 climate tech startups, and together they are worth over $10 billion. Startups in this accelerator typically focus on such areas as Energy Related, Science Required, Climate Adaptation, Green Fintech, and Carbon Accounting & Offsets.

See accelerators 111 and beyond on the next page. Did we fail to mention a sustainability-focused accelerator? If so please email me the details (accelerator name, website, focus, etc.).