7 Founders Backed by WestRiver Group (2026)

7 founders backed by WestRiver Group, with company, stage, and round detail. Includes Colossal Biosciences and Lumen Bioscience.

WestRiver Group founders (7)

WestRiver Group founders covers 7 founders on Talespin, Colossal Biosciences and Groopit and 3 other companies. The most common sectors are Biotech (2), Education (2) and Healthtech (1). Members are based in 4 cities, led by Seattle, WA (3), Culver City, CA (2) and Bellevue, WA (1). The remaining members span SaaS (1). Companies represented include Lumen Bioscience, Pioneer Square Labs and Viome. Every founder below links to a profile with their company, backers, and the filings behind each round.

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•By Alejandro Cremades