Top Climate Startups in 2026
Climate tech, energy, agriculture, and sustainability startups
About Climate startups
The Climate category collects 177 tech startups indexed on techstartupslist.com. Climate tech, energy, agriculture, and sustainability startups. Notable companies in this space include Oklo, 1849 bio, Abatable, Advano, and Aerones — each profile links to the company's own site, lists open roles when their careers page is scrapable, and surfaces team size, founding year, and category tags. Common themes across these Climate startups: Climate, Energy, ClimateTech, Hard Tech, Agriculture. Filtering by any of these tags in the directory narrows the list further. Geographically, the Climate index leans toward San Francisco, New York City and Los Angeles, with the rest spread across remote-first teams and other hubs. Many of these companies came in through the Y Combinator scrape (batches F25, F26, S14, S15); 1 is currently flagged as trending based on recent momentum signals; and the index refreshes daily so this page stays current as funding rounds close, jobs open, and new entrants ship. For a broader view, see the full directory or jump to Climate jobs to apply directly — every outbound link goes to the company's own site, not a paywalled middleman.
Showing 48 of 177 Filter the directory by this category →
Five standout startups, five open roles, every Monday
A weekly digest pulled from the 5,200+ startups and 6,700+ jobs we track. No fluff, no resend.
Double opt-in. Unsubscribe anytime.
Frequently asked questions
What are the top Climate startups in 2026?
Based on our index, Oklo, 1849 bio and Abatable are among the Climate startups tracked on techstartupslist.com. The full list ranks 177 companies in this category.
How many Climate startups are in the techstartupslist.com directory?
We currently index 177 Climate startups. New entries are added automatically as they are discovered from Y Combinator, Greenhouse, Ashby, and other sources.
How often is the Climate category updated?
The Climate listing is refreshed daily by an automated scraper that pulls from Y Combinator and other public sources. The last index update for this page was 2026-09-02.
Where can I find jobs at Climate startups?
Open roles at indexed Climate startups are aggregated on our jobs page at https://www.techstartupslist.com/jobs. Each role links directly to the company's official application page — we don't act as a middleman.