Top Series B Climate tech companies
Companies decarbonising power, transport, agriculture, and industry. Filtered to companies whose latest disclosed round is Series B.
- StageSeries B
- IndustryClimate tech
- Matches105
Built from a search like: “Top Series B Climate tech companies”
Ranked by current headcount across Series B Climate tech companies. Refreshed daily.
- 1Suntech· Jiangsu, China
- Series B
- 1.8k employees
- Founded 2001
- 2Advanced Disposal Services, Inc.· Ponte Vedra Beach, Florida, United States
- Series B
- 1k employees
- Founded 2000
- 3Varaha· Gurugram, Haryana, India
- Series B
- 274 employees
- Founded 2022
- 45B· Mascot, New South Wales, Australia
- Series B
- 233 employees
- Founded 2013
- 5Agreena· Copenhagen, Capital Region of Denmark, Denmark
- Series B
- 215 employees
- Founded 2018
- 6TAS Environmental Services, L.P.· Irving, Texas, United States
- Series B
- 213 employees
- Founded 2004
- 7NEPRA - Let's Recycle· Ahmedabad, Gujarat, India
- Series B
- 200 employees
- Founded 2006
- 8Sigenergy· Shanghai, Shanghai, China
- Series B
- 194 employees
- Founded 2022
- 9TESVOLT AG· Wittenberg, Saxony-Anhalt, Germany
- Series B
- 176 employees
- Founded 2014
- 10Nuru· Goma, North Kivu, Democratic Republic of the Congo
- Series B
- 150 employees
- Founded 2015
- 11Olio • Share More, Waste Less· London Colney, England, United Kingdom
- Series B
- 145 employees
- Founded 2016
- 12Sunpower Technology (Jiangsu) Co., Ltd.· Nanjing, Jiangsu, China
- Series B
- 138 employees
- Founded 1997
- 13NatureMetrics· Guildford, England, United Kingdom
- Series B
- 132 employees
- Founded 2014
- 14Normative.io· Stockholm, Stockholm County, Sweden
- Series B
- 130 employees
- Founded 2014
- 15Arnergy· Kosofe, Lagos State, Nigeria
- Series B
- 124 employees
- Founded 2013
- 16eureciclo· São Paulo, São Paulo, Brazil
- Series B
- 118 employees
- Founded 2015
- 17GODI· Hyderabad, Telangana, India
- Series B
- 111 employees
- Founded 2020
- 18CHINT Green Energy· China
- Series B
- 100 employees
- Founded 2006
- 19neoom· Freistadt, Upper Austria, Austria
- Series B
- 96 employees
- Founded 2018
- 20Charm Industrial· San Francisco, California, United States
- Series B
- 95 employees
- Founded 2018
- 21Bio Petro Clean· Delhi, India
- Series B
- 95 employees
- Founded 2005
- 22Patch· San Francisco, California, United States
- Series B
- 94 employees
- Founded 2020
- 23Neuron Energy· Mumbai, Maharashtra, India
- Series B
- 88 employees
- Founded 2018
- 24ZwitterCo· Woburn, Massachusetts, United States
- Series B
- 85 employees
- Founded 2018
- 25auum· Paris, Île-de-France, France
- Series B
- 79 employees
- Founded 2019
Find engineers and founders at Series B Climate tech companies
Series B 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 B, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 105matching 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 B Climate tech founders hiring senior engineers” or “design leads at Series B Climate tech companies” and Refolk returns a fresh ranked shortlist with the sources behind each match.
How this list is built
Last refreshed: Thu, 07 May 2026 08:21:17 GMT
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- Series A Climate tech
- Series B AI
- Series B SaaS
- Series B Fintech
- Series B Developer tools
- Series B Cybersecurity
- Series B Healthtech
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