Climate Tech accelerator and startup program deadlines

Next cohort not yet announced

These programs are active but have not published a next window. We re-check them weekly, and this page will say so until they do.

• 1337 Ventures Alpha Startups Pre-Accelerator — The official page shows Cohort 64 in July 2025; no current 2026 deadline is published.
• Activate Fellowship — Activate has not published a fixed annual deadline in the guide's sources, so check the program's site for the current cycle. The appointment begins June 1 and fellows are expected to start no later than September 1, but the program publishes those dates without a year.
• Amazon Devices Climate Tech Accelerator — Applications for the 2026 cohort are closed.
• Amazon Sustainability Accelerator — Climate Tech — 2026 applications closed on 2026-07-10.
• America’s Seed Fund powered by NSF SBIR/STTR
• ASEAN Accelerator Programme — The cited official page describes the program and its 2025 activities, with a 2026 showcase, but does not publish a 2026/2027 startup application deadline or funding amount.
• AWS Clean Energy Accelerator 4.0 — The cited page identifies the 4.0 cohort but does not publish a 2026/2027 application deadline.
• BNDES Garagem — The cited official page describes the second edition but does not provide a current founder application deadline.
• CalSEED — Cohort 7 prototype awards were announced in 2026; no next application deadline was published.
• Carbon to Value Initiative
• Colorado Advanced Industries Early-Stage Capital and Retention Grant
• Colorado Advanced Industries Proof of Concept Grant
• CoMotion Labs Climate Tech Incubator — The official page states that this program is no longer accepting applications.
• Creative Destruction Lab — Windows and start dates are set per stream and per location, so CDL publishes no single application calendar; check the current cycle on CDL's own site.
• Creative Destruction Lab — Climate Stream — Applications for the 2026/27 program have closed.
• DOE SBIR/STTR — FY26 Phase I Genesis Mission opportunity was open as of the cited page; the page does not state a closing date.
• Dubai Future Accelerators — Applications are challenge-based; no current year-qualified deadline is published on the cited page.
• Eastern Caribbean Greenpreneurs — The official funding page lists the opportunity but does not publish a current dated application deadline.
• Egypt PropTech Challenge 2026
• EIT 28DIGITAL Co-Creation Accelerator
• EnergyLab Climate Solutions Accelerator — The 2026 intake is closed; 2027 expression of interest is available but no deadline is published.
• Founders Factory — Each corporate-partnered program runs its own window and its own form, and Founders Factory publishes no group-wide deadline. The index and the individual program pages can disagree on status, so verify on the destination page.
• Free Electrons — Applications for the 2026 program closed on 2026-01-31.
• Google for Startups Accelerator — There is no single form and no single deadline: each regional and thematic accelerator runs its own process and deadline on its own page.
• Green RISE East Africa Fellowship and Accelerator — Applications opened in 2026; the cited page does not provide a closing date
• Greentown Houston — The official membership page does not publish a standard check size, equity term, or dated cohort deadline.
• Greentown Labs — Greentown’s membership application remains open with no closing date listed, and review typically takes two weeks. The latest dated cohort found, Go Make 2027: Advanced Carbon Materials, had a deadline of October 9, 2026, which has passed; no later cohort deadline is published on the cited pages. The Go Make page itself displays “Apply by Oct. 9” without a year, while its announcement specifies 2026.
• Halcyon — The official programs page shows active programs but does not publish a dated deadline for the general program listing.
• IndieBio (SOSV NY / SOSV SF) — Deadline dates and batch timing are not published; read the SOSV application page before planning around a start date.
• Innosphere Accelerator
• InovAtiva de Impacto Socioambiental
• Los Angeles Cleantech Incubator (LACI) Incubation Program — Cohort 13's application window is closed: the landing-page timeline says June 1–July 10, 2026 (its separate ‘Application Deadline: July 10’ callout omits the year), while the application portal gives July 12, 2026. Cohort 13 is scheduled for November 2026–November 2028; no later application window is announced on the official pages reviewed.
• Manufacturing Hardware Accelerator — The program recruits in the fall and runs January–October; no 2027 deadline was published.
• MassCEC Catalyst & Academic Activator Grants
• mHUB Startup Accelerator
• Newlab — A separate 2026 Founder Fellowship had a published application window through December 31, 2025, with activities starting in March 2026; that dated cohort is distinct from Newlab's general startup membership application, which it says is always open.
• Presight Accelerator — Cohort II applications closed on 2026-02-15
• Santander X Explorer — The page lists registration until August 20 without a year; the next edition is identified as 2026.
• Startup Qatar Investment Program — No current year-qualified application deadline is published on the official program page.
• Startupbootcamp — There is no single group-wide form or deadline: track pages open and close on their own schedules. Checked 2026-08-24, five tracks showed applications open (Georgia I, Energy & Climate III, Food & AgriTech III, Health & LifeScience I, DeepTech & Robotics III).
• The Bridge by Entrepreneurs First — The site says “Next deadline August 30th” without printing a year, so no dated deadline is recorded.
• Venture For ClimateTech — Cohort 6 is the latest published intake found, and its application window is closed. The FAQ lists Jan 5–Feb 20, 2026; the program later extended the deadline to Feb 27, 2026 at 5:00 PM ET. No future application window is published. The main page still says it is 'currently recruiting' for Cohort 6, but the dedicated application page says applications are closed. 2026 updates show Cohort 6 selected and progressing to its September showcase, with no indication the program has wound down.