18 Founders Backed by Flagship Pioneering (2026)

Flagship Pioneering founders (18)

Flagship Pioneering founders covers 18 founders on Etiome, Extuitive and Mirai Bio and 10 other companies. The most common sectors are Biotech (16) and AI Infrastructure (2). Members are based in 2 cities, led by Cambridge, MA (17) and Boston, MA (1). Companies represented include Ampersand Biomedicines, Expedition Medicines, Foghorn Therapeutics, Harbinger Health, Inari, Lila Sciences, Prologue Medicines, Quotient Therapeutics, Serif Bio­med­i­cines and Terrana Biosciences. Every founder below links to a profile with their company, backers, and the filings behind each round.

• Founders listed: 18
• Companies represented: 13
• Top sector: Biotech (16 founders)
• Top location: Cambridge, MA (17 founders)
• Sectors represented: 2
• Locations represented: 2

• Adrian (Ad) Rawcliffe — Etiome
• Adrian Gottschalk — Foghorn Therapeutics
• Adrian Rawcliffe — Etiome
• Ajit Singh — Harbinger Health
• Armen Mkrtchyan — Extuitive
• Avak Kahvejian — Etiome
• Chong Guo — Extuitive
• Geoffrey Maltzahn — Lila Sciences
• Geoffrey Maltzahn — Mirai Bio
• Geoffrey Maltzahn — Quotient Therapeutics
• Hari Pujar — Mirai Bio
• Jacob Rubens — Serif Bio­med­i­cines
• Jason Gardner — Ampersand Biomedicines
• Lovisa Afzelius — Prologue Medicines
• Molly Gibson — Expedition Medicines
• Ponsi Trivisvavet — Inari
• Ryan Rapp — Terrana Biosciences
• Scott Lipnick — Etiome

Browse the full founder directory

Narrow Flagship Pioneering founders

• Flagship Pioneering · Cambridge, MA (17 founders)
• Flagship Pioneering · Biotech (16 founders)

Other founder hubs

• Correlation Ventures (31 founders)
• GV (23 founders)
• Icon Ventures (19 founders)
• Bessemer Venture Partners (51 founders)
• Matrix (32 founders)
• Madrona (24 founders)
• Tuesday Capital (20 founders)
• General Catalyst (52 founders)
• Gaingels (34 founders)
• HTGF (High-Tech Gruenderfonds) (25 founders)
• Kapor Capital (20 founders)
• Andreessen Horowitz (59 founders)
• Slow Ventures (34 founders)
• Liquid 2 Ventures (26 founders)
• Service Provider Capital (21 founders)
• MAGIC Fund (18 founders)
• Menlo Ventures (35 founders)
• Flybridge (27 founders)
• RRE Ventures (21 founders)
• Right Side Capital Management (18 founders)
• Felicis (37 founders)
• Polaris Partners (28 founders)
• FirstMark (21 founders)
• Legendary Ventures (18 founders)

Full founder directory · Investor directory · Company funding database