Antheia, Inc.
Ending drug shortages with advanced biosynthesis
Menlo Park, United States · Founded 2016 · $228.0M raised
- Headquarters
- Menlo Park, California
- Employees
- 1–10
- Founded
- 2016
- Business Model
- B2B
- Website
- antheia.bio
- Total Funding
- $228.0M
- Last Round
- $24.0M Series CJan 2026
- Rounds
- 4
About
Antheia, Inc. is a next-generation pharmaceutical ingredient manufacturer using synthetic biology and advanced biosynthesis to produce Active Pharmaceutical Ingredients (APIs) and Key Starting Materials (KSMs) for essential medicines. Founded by Stanford synthetic biology pioneer Dr. Christina Smolke, Antheia engineers yeast to reconstruct complex plant biosynthetic pathways—converting simple sugars into high-value pharmaceutical compounds at commercial scale via fermentation. The company has a pipeline of 70+ biosynthetic KSMs and APIs and achieved commercial-scale shipment of thebaine for use in Narcan (naloxone) production, addressing critical drug shortage vulnerabilities in the U.S. pharmaceutical supply chain.
Summary
Antheia, Inc. is a Biotech company based in Menlo Park, United States, founded in 2016. It has raised $228.0M in total across 4 rounds, most recently a $24.0M Series C round in Jan 2026. Investors include Global Health Investment Corporation, Viking Global and Khosla Ventures.
Tech & App Stack
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Funding History
Jan 2026
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Series B through Series C — per-round amounts, valuations, and who invested in each round.
Investors
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