Top Series B companies
Companies that have closed a Series B — proven scaling motion, hiring aggressively.
Ranked by current headcount across Series B companies. Refreshed daily.
- 1Outlier· San Francisco, California, United States
- Series B
- 27.7k employees
- Founded 2023
- 2Bajaj Auto Ltd· Pimpri Chinchwad, Maharashtra, India
- Series B
- 21.5k employees
- Founded 1945
- 3Aster DM Healthcare· United Arab Emirates
- Series B
- 19.4k employees
- Founded 1987
- 4Fortinet· Sunnyvale, California, United States
- Series B
- 16k employees
- Founded 2014
- 5
- Series B
- 13.7k employees
- Founded 2003
- 6BNP Paribas Fortis· Brussels, Brussels Region, Belgium
- Series B
- 12k employees
- Founded 2008
- 7Railway· San Francisco, California, United States
- Series B
- 10.7k employees
- Founded 2020
- 8Cloud Software Group· Fort Lauderdale, Florida, United States
- Series B
- 9.5k employees
- Founded 2008
- 9Evolution· Birkirkara, Malta
- Series B
- 8.8k employees
- Founded 2006
- 10Chief· New York, New York, United States
- Series B
- 8k employees
- Founded 2019
- 11Datavant· Phoenix, Arizona, United States
- Series B
- 7.1k employees
- Founded 2017
- 12Shipt· Birmingham, Alabama, United States
- Series B
- 6.5k employees
- Founded 2014
- 13Driver· San Francisco, California, United States
- Series B
- 6.2k employees
- Founded 2015
- 14GitHub· San Francisco, California, United States
- Series B
- 6k employees
- Founded 2008
- 15SICEPAT EKSPRES INDONESIA· Gambir, Jakarta, Indonesia
- Series B
- 5.7k employees
- Founded 2014
- 16PlanetSpark· Gurugram, Haryana, India
- Series B
- 5.4k employees
- Founded 2017
- 17Pictet Group· Commugny, Vaud, Switzerland
- Series B
- 5.1k employees
- Founded 1991
- 18Alibaba Cloud· Hangzhou, Zhejiang, China
- Series B
- 4.9k employees
- Founded 2009
- 19Cloudstaff· Millers Point, New South Wales, Australia
- Series B
- 4.8k employees
- Founded 2005
- 20Universidad Tecnológica Nacional· Buenos Aires, Buenos Aires Province, Argentina
- Series B
- 4.5k employees
- Founded 1948
- 21Sama· San Francisco, California, United States
- Series B
- 4.3k employees
- Founded 2008
- 22Extreme Networks· Morrisville, North Carolina, United States
- Series B
- 4k employees
- Founded 1996
- 23Tredence Inc.· San Jose, California, United States
- Series B
- 4k employees
- Founded 2013
- 24MyTutor.co.uk· London, England, United Kingdom
- Series B
- 4k employees
- Founded 2013
- 25中腾信金融信息服务(上海)有限公司· China
- Series B
- 3.9k employees
- Founded 2014
Find engineers at top Series B companies
Series B companies are some of the most active hirers in the market. The list above ranks the largest Series B-stage companies by current headcount, drawn from public LinkedIn and Crunchbase records. Across 7,458matching companies, you’ll find senior engineers, founding designers, product leads, and operators worth tracking.
Companies at this stage tend to share a profile: clear product-market fit, fresh capital, and aggressive hiring plans. That makes the people already there valuable signals — early hires usually become the next hiring managers, founders, and angel investors.
Refolk lets you reach into this pool with plain English. Ask for “Series B fintech founders hiring senior engineers” or “design leads at Series B 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 04:00:12 GMT
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