COMPANY PROFILE · UPDATED 01 AUG 2026

Sonoma Biotherapeutics

Sonoma Biotherapeutics is a company invloved the development of adoptive Treg therapies cell for autoimmune and degenerative diseases. Using next generation genome editing and target-specific cell therapy, Sonoma is focused on developing…

South San Francisco, CA

sonomabio.com ↗

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Healthcare & Biotech Biotech & Drug Discovery Medical Organizations Series B Companies In Peninsula Bay Area Has Woman Founder Biotechnology Companies

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Founded: 2020
Headcount: 94
Open roles: 0
Last raised: Grant

LOCATIONS

Where they work

Sonoma Biotherapeutics offices

South San Francisco, CA400 E Jamie Ct suite 202

FUNDING

Capital raised

Total raised

$365,300,000

Investors

Funding rounds

Grant
ScaleReady
$300KNov 3, 2025
Corporate Round
Regeneron Pharmaceuticals
$30MMar 27, 2023
Series B
Ally Bridge Group, Fidelity, NS Investment, JDRF T1D Fund, Lilly Asia Ventures, ArrowMark Colorado Holdings, 8VC, Vertex Ventures HC, Casdin Capital, GV, Avidity Partners, Lifeforce Capital, Arch Venture Partners, Janus Capital, Alexandria Venture Investments, Mirae Asset, Deep Track Capital, Osage University Partners II, Frazier Management, Octagon Capital Advisors
$265MAug 3, 2021
Series A
Arch Venture Partners, 8VC, Lilly Asia Ventures, Lyell Immunopharma, JDRF T1D Fund, Alexandria Venture Investments, Lifeforce Capital, Octagon Capital Advisors
$30MSep 29, 2020
Series A
Lyell Immunopharma, 8VC, Milky Way Ventures, Arch Venture Partners
$40MFeb 5, 2020

Funding data via Diffbot, SEC EDGAR filings and company announcements — a round from a filing or announcement links to it

OPEN ROLES

Roles at Sonoma Biotherapeutics

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LEADERSHIP

Founders & key people

Fred Ramsdell

American immunologist

UC San DiegoUCLA

Jeffrey Bluestone

Immunologist, researcher

Sonoma BiotherapeuticsParker Institute for Cancer ImmunotherapyProvention BioUCSFUCSF Medical CenterImmune Tolerance NetworkCornell UniversityRutgers UniversityCook High SchoolJohn P. Stevens High School

Qizhi Tang

Founder at Sonoma Biotherapeutics

UCSFSonoma BiotherapeuticsQihan BiotechEncellineGenesisHuazhong University of Science and TechnologyUniversity of Illinois at ChicagoUniversity of ChicagoPeking Union Medical College