Antheia, Inc.

Ending drug shortages with advanced biosynthesis

Menlo Park, United States · Founded 2016 · $228.0M raised

Employees
1–10
Founded
2016
Business Model
B2B
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

5 technologies & apps tracked

Create a free account — 10 credits a month to unlock the full tech & app stack, funding history, and valuations.

Sign up to view the funding chart

Create a free account — you'll get 10 credits a month to unlock funding history, valuations, and tech stacks.

Funding History

Series CSeries CJan 2026
$24.0M

Sign up to see all 4 rounds

Full funding history, per-round amounts, and investor participation.

Investors

Similar Companies