Top Series B AI companies
Companies building AI products, foundation models, and applied ML platforms. Filtered to companies whose latest disclosed round is Series B.
- StageSeries B
- IndustryAI
- Matches491
Built from a search like: “Top Series B AI companies”
Ranked by current headcount across Series B AI companies. Refreshed daily.
- 1Chief· New York, New York, United States
- Series B
- 8k employees
- Founded 2019
- 2Foundation Medicine· Boston, Massachusetts, United States
- Series B
- 1.8k employees
- Founded 2010
- 3MGI· Shenzhen, Guangdong, China
- Series B
- 1.3k employees
- Founded 2016
- 4Novogene· Xinchengzi, Beijing, China
- Series B
- 705 employees
- Founded 2011
- 5Sinocare Inc.· Changsha Village, Hainan, China
- Series B
- 574 employees
- Founded 2002
- 6Tidal Vision· Bellingham, Washington, United States
- Series B
- 353 employees
- Founded 2015
- 7INCOG BioPharma Services· Fishers, Indiana, United States
- Series B
- 305 employees
- Founded 2020
- 84baseCare· Bengaluru, Karnataka, India
- Series B
- 295 employees
- Founded 2018
- 9hVIVO· London, England, United Kingdom
- Series B
- 203 employees
- Founded 1989
- 10Sea6 Energy Pvt Ltd.· Bengaluru, Karnataka, India
- Series B
- 193 employees
- Founded 2010
- 11Alloyed· Yarnton, England, United Kingdom
- Series B
- 188 employees
- Founded 2017
- 12Emerald Cloud Lab· Austin, Texas, United States
- Series B
- 184 employees
- Founded 2010
- 13Immunai· New York, New York, United States
- Series B
- 184 employees
- Founded 2019
- 14Orna Therapeutics· New Bedford, Massachusetts, United States
- Series B
- 174 employees
- Founded 2019
- 15Metagenomi· Emeryville, California, United States
- Series B
- 174 employees
- Founded 2018
- 16ACROBiosystems· Newark, Delaware, United States
- Series B
- 174 employees
- Founded 2010
- 17Vial· San Francisco, California, United States
- Series B
- 165 employees
- Founded 2020
- 18Stämm· San Francisco, California, United States
- Series B
- 160 employees
- Founded 2016
- 19Genesis Molecular AI· Burlingame, California, United States
- Series B
- 156 employees
- Founded 2019
- 20GenePlanet· Ljubljana, Ljubljana, Slovenia
- Series B
- 156 employees
- Founded 2008
- 21QuEra Computing Inc.· Boston, Massachusetts, United States
- Series B
- 152 employees
- Founded 2018
- 22Kardigan· South San Francisco, California, United States
- Series B
- 152 employees
- Founded 2023
- 23String Bio Private Limited· Bengaluru, Karnataka, India
- Series B
- 150 employees
- Founded 2013
- 24Kailera Therapeutics
- Series B
- 144 employees
- Founded 2024
- 25至本医疗科技(上海)有限公司 OrigiMed· China
- Series B
- 140 employees
- Founded 2016
Find engineers and founders at Series B AI companies
Series B AI companies are some of the most active hirers in the market. The list above ranks the largest AI companies whose latest disclosed round is Series B, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 491matching companies, you’ll find senior engineers, founding designers, and operators worth tracking.
Companies at this stage in AI 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 AI talent is concentrating right now.
Refolk converts this list into a search. Ask for “Series B AI founders hiring senior engineers” or “design leads at Series B AI 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 07:56:16 GMT
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