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

Here are accelerators 51-60:

51. IBM Sustainability Accelerator: This is a pro bono program that serves nonprofit and governmental organizations globally. Those organizations, leveraging IBM's hybrid cloud and artificial intelligence (AI) technologies, support communities that are especially vulnerable to environmental threats -- such as climate change, extreme weather, and pollution. Related February 2025 Update: The IBM Sustainability Accelerator is seeking applications for its next cohort. The accelerator is open to nonprofit and government organizations worldwide. Deadline for submissions for this cohort is April 30, 2025.

52. IBM Impact Accelerator: The program in November 2025 selected five organizations for its 2025 cohort. The cohort will "use IBM solutions to help build smarter supply chains and strengthen digital infrastructure for long-term resilience and sustainability," IBM said.

53. IdeaSpace: The startup accelerator and early-stage venture investment firm in late 2025 named Alwyn Rosel as the new executive director of IdeaSpace and QBO Innovation, succeeding Jay Fajardo. IdeaSpace is based in the Philippines.

54. Innovate For Tomorrow Impact Accelerator 2025: The accelerator as of November 2025 is seeking submissions focused on waste, resource recovery and smart technology. Dubai Holdings runs the accelerator.

55. Innovate UK's Global Incubator Programme: Incubator members, including eight UK-based climate technology startups, participated in a cohort meeting in New York during September 2025. NYU Tandon School of Engineering's Urban Future Lab (UFL) hosted the meeting. Related: List of 90+ sustainability accelerators and incubators.

56. Intel Ignite: This is the chip giant's accelerator program for early-stage startups. Intel in October 2023 selected 10 companies for its U.S. cohort. Among sustainability-oriented startups to note:

• Gaia AI: Measurement and analytical tool for data-driven forest management.
• Intramotev: Self-propelled battery-electric railcars for the railroad industry.
• Mesodyne: Power generator that provides reliable, efficient, quiet, portable and long-endurance power from any fuel.
• TryCarbonara: A platform to measure and reduce the carbon emissions of software.

57. International Airlines Group Accelerator. The IAG in August 2025 welcomed 29 start-ups from 11 countries, focusing on AI, sustainability, and next-gen aviation solutions, according to Aerospace Global News.

58. Ireland's National Sustainability Accelerator: Also known as the 2050 accelerator, the program gives "top Irish and international startups the opportunity to work with companies leading Ireland’s transition to Net Zero."

59. Johnson Controls Incubator: Johnson Controls-Hitachi Air Conditioning Limited will launch a startup incubator in Kadi, Gujarat, The Economic Times of India reported in October 2024. The incubator plans to support manufacturing-focused startups that foster technological advancements, sustainability, and energy efficiency. The incubator involves a partnership with India's Department for Promotion of Industry and Internal Trade (DPIIT). We don't know when the incubator will select its first cohort of startups.

60. KPMG Nature Positive Challenge: The Nature Positive Challenge focuses on "rebuilding and protecting natural ecosystems and promoting sustainable agriculture and food systems," the company said. The 2025 annual competition is open to startups in Australia, Fiji and Papua New Guinea.

See accelerators 61-70 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.).