Series A Climate tech companies in London
Companies decarbonising power, transport, agriculture, and industry. Filtered to Series A-stage companies headquartered in London.
Built from a search like: “Top Series A Climate tech companies in London”
Ranked by current headcount across Series A Climate tech companies in London. Refreshed daily.
- 144.01· London, England, United Kingdom
- Series A
- 167 employees
- Founded 2020
- 2Recycleye· London, England, United Kingdom
- Series A
- 110 employees
- Founded 2019
- 3Origen· London, England, United Kingdom
- Series A
- 85 employees
- Founded 2013
- 4Supercritical· London, England, United Kingdom
- Series A
- 67 employees
- Founded 2021
- 5Revalue· London, England, United Kingdom
- Series A
- 60 employees
- Founded 2022
- 6Airly· London, England, United Kingdom
- Series A
- 42 employees
- Founded 2016
- 7Natcap· London, England, United Kingdom
- Series A
- 41 employees
- Founded 2018
- 8Puraffinity· London, England, United Kingdom
- Series A
- 40 employees
- Founded 2015
- 9Gaussion· London, England, United Kingdom
- Series A
- 23 employees
- Founded 2017
- 10Cocoon· London, England, United Kingdom
- Series A
- 17 employees
- Founded 2023
- 11Woodly· London, England, United Kingdom
- Series A
- 14 employees
- Founded 2017
Find engineers at Series A Climate tech companies in London
Searching for “engineers at top Series A Climate tech companies in London” surfaces this slice of the market. The list above ranks Climate tech companies headquartered in London whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. With 11 matching companies in our index, this is a tight read on where the Climate tech talent in London is heating up.
Three filters at once narrows the field hard. The companies that survive all three — Series A, Climate tech, in London — are usually the most targeted recruiting pool a hiring manager can ask for. Senior engineers, founding designers, and product leads here are about to become Climate tech’s next operators and angel investors.
Refolk converts this list into a live search. Ask for “senior engineers at Series A Climate tech companies in London hiring” or “founders of Series A Climate tech companies in London who left in the last year” and Refolk returns a ranked shortlist with the evidence behind each match.
How this list is built
Last refreshed: Thu, 07 May 2026 08:22:18 GMT
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