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Top Series A Climate tech companies

Companies decarbonising power, transport, agriculture, and industry. Filtered to companies whose latest disclosed round is Series A.

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Built from a search like: “Top Series A Climate tech companies”

Ranked by current headcount across Series A Climate tech companies. Refreshed daily.

  1. 1
    LONGi Solar· China
    • Series A
    • 2k employees
    • Founded 2000
  2. 2
    SMA Solar· Sandershausen, Hesse, Germany
    • Series A
    • 2k employees
    • Founded 2023
  3. 3
    Red Ambiental· Monterrey, Nuevo León, Mexico
    • Series A
    • 828 employees
    • Founded 1997
  4. 4
    GameChange Energy· Norwalk, Connecticut, United States
    • Series A
    • 531 employees
    • Founded 2012
  5. 5
    Musa· São Paulo, São Paulo, Brazil
    • Series A
    • 355 employees
    • Founded 2020
Reveal 191 more·100 free credits, no card

Find engineers and founders at Series A Climate tech companies

Series A Climate tech companies are some of the most active hirers in the market. The list above ranks the largest Climate tech companies whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 196matching companies, you’ll find senior engineers, founding designers, and operators worth tracking.

Companies at this stage in Climate tech share a profile: a working product, fresh capital, and a hiring plan that wants senior people yesterday. Looking at headcount, last round, and HQ side by side gives you a quick read on where Climate tech talent is concentrating right now.

Refolk converts this list into a search. Ask for “Series A Climate tech founders hiring senior engineers” or “design leads at Series A Climate tech companies” and Refolk returns a fresh ranked shortlist with the sources behind each match.

How this list is built

Refolk pulled Climate tech companies whose latest disclosed funding round is Series A from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes once a day.

Last refreshed: Sun, 21 Jun 2026 11:22:25 GMT

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