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Top Climate tech companies in New York

Companies decarbonising power, transport, agriculture, and industry. Filtered to companies headquartered in New York.

Built from a search like: “Top Climate tech companies in New York”

Ranked by current headcount across Climate tech companies headquartered in New York. Refreshed daily.

  1. 1
    GE Power· Schenectady, New York, United States
    • 17.5k employees
    • Founded 1992
  2. 2
    NYC Department of Environmental Protection (NYC DEP)· Queens, New York, United States
    • 3k employees
  3. 3
    NYS Department of Environmental Conservation· Albany, New York, United States
    • 2.2k employees
  4. 4
    Hazen and Sawyer· New York, New York, United States
    • Grant
    • 2.2k employees
    • Founded 1951
  5. 5
    ENGIE Impact· New York, New York, United States
    • 1.1k employees
    • Founded 1996
  6. 6
    SavATree· Bedford Hills, New York, United States
    • Private equity
    • 1.1k employees
    • Founded 1985
  7. 7
    Auto Mecanica· Brooklyn, New York, United States
    • 627 employees
  8. 8
    Roux· Islandia, New York, United States
    • 451 employees
    • Founded 1981
  9. 9
    AKRF· New York, New York, United States
    • 430 employees
    • Founded 1981
  10. 10
    Metro Group· New York, New York, United States
    • 348 employees
    • Founded 1925
  11. 11
    Ecology and Environment, Inc.· Lancaster, New York, United States
    • 324 employees
  12. 12
    Con Edison Clean Energy Businesses· Valhalla, New York, United States
    • 317 employees
    • Founded 2016
  13. 13
    Sevenson Environmental Services Inc.· Niagara Falls, New York, United States
    • 300 employees
    • Founded 1917
  14. 14
    Miller Environmental Group, Inc.· Calverton, New York, United States
    • 256 employees
    • Founded 1971
  15. 15
    EDR (Environmental Design & Research)· Syracuse, New York, United States
    • 253 employees
    • Founded 1979
  16. 16
    Green City Force· Brooklyn, New York, United States
    • Grant
    • 213 employees
    • Founded 2009
  17. 17
    GDI· Rochester, New York, United States
    • Series A
    • 194 employees
    • Founded 2009
  18. 18
    Recycle Track Systems· New York, New York, United States
    • Series unknown
    • 186 employees
    • Founded 2015
  19. 19
    Venture Home· Brooklyn, New York, United States
    • 185 employees
    • Founded 2015
  20. 20
    Modern Disposal Services, Inc.· Lewiston, New York, United States
    • 178 employees
    • Founded 1964
  21. 21
    GrowNYC· New York, New York, United States
    • Grant
    • 174 employees
  22. 22
    SGS Environment, Health and Safety (North America)· East Syracuse, New York, United States
    • 166 employees
  23. 23
    Madison Energy Infrastructure· New York, New York, United States
    • Debt
    • 164 employees
    • Founded 2019
  24. 24
    Amogy· Brooklyn, New York, United States
    • Series unknown
    • 154 employees
    • Founded 2020
  25. 25
    Association for Energy Affordability, Inc.· Bronx, New York, United States
    • 144 employees
    • Founded 2012

Find engineers at Climate tech companies in New York

New York has long been a hub for Climate tech, and the list above ranks the largest Climate tech companies headquartered there by current headcount, drawn from public LinkedIn and Crunchbase records. With 520 matching companies in our index, this is a good map of where the Climate tech talent in New Yorklives — useful whether you’re recruiting, partnering, or sizing a market.

The biggest Climate tech companies in New York tend to be the gravitational centres for specialised talent — senior engineers, ML researchers, applied scientists, designers — while the smaller ones compete on speed, equity, and proximity to founders.

Refolk converts this list into a live search. Ask for “Climate tech engineers in New Yorkhiring senior staff” or “founders of Climate tech companies in New Yorkwho left in the last 12 months” and Refolk returns a ranked shortlist with the evidence that earned each person a spot.

How this list is built

Refolk pulled Climate tech companies headquartered in New York from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 10 employees. The list refreshes once a day.

Last refreshed: Thu, 07 May 2026 09:09:07 GMT

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