13 Founders in Waltham, MA building Biotech (2026)

13 founders in Waltham, MA and building Biotech, with company, funding, and investor detail. Includes Altido Therapeutics and Mercy BioAnalytics.

Founders in Waltham, MA and building Biotech (15)

Founders in Waltham, MA and building Biotech covers 15 founders on Arsenal Medical, Zenas BioPharma and Affinia Therapeutics and 10 other companies. The most common sector is Biotech (15). Companies represented include Alloy Therapeutics, Altido Therapeutics, Cogent Biosciences, Crescent Biopharma, ElevateBio, Jade Biosciences, Kailera Therapeutics, Mercy BioAnalytics, Sionna Therapeutics and Xilio Therapeutics. Every founder below links to a profile with their company, backers, and the filings behind each round.

Founders listed: 15
Companies represented: 13
Top sector: Biotech (15 founders)
Top location: Waltham, MA (15 founders)

Chip Clark — Altido Therapeutics
Dawn Mattoon — Mercy BioAnalytics
Denali Therapeutics team — ElevateBio
Errik Anderson — Alloy Therapeutics
Jason P. Hafler — Cogent Biosciences
Joe Farmer — Zenas BioPharma
Josh Brumm — Crescent Biopharma
Lee Core — Arsenal Medical
Lonnie Moulder — Zenas BioPharma
Michael Cloonan — Sionna Therapeutics
Rene Russo — Xilio Therapeutics
Rick Modi — Affinia Therapeutics
Ron Renaud — Kailera Therapeutics
Tom Frohlich — Jade Biosciences
Upma Sharma — Arsenal Medical

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