Redwood Bioscience Inc.


Brief Description

Redwood Bioscience, Inc. develops a protein-chemical engineering technology to produce antibody-drug conjugates and other semi-synthetic biotherapeutics. The company offers SMARTag site-specific protein modification and cytotoxin-linker technologies that enable the generation of homogenous bioconjugates engineered to enhance potency, safety, and stability. Its SMARTag platform provides precise payload positioning and defined stoichiometry of payload-protein ratios. The company was incorporated in 2008 and is based in Emeryville, California. Redwood Bioscience, Inc. operates as a subsidiary of Catalent, Inc.

The company was co-founded by UC Berkeley Professor of Chemistry Carolyn Bertozzi and David Rabuka, who was a PhD student in her lab. In 2022, Dr. Bertozzi shared the Nobel Prize in Chemistry.

Redwood Bioscience was acquired by Catalent Pharma Solutions in 2014.


  • 2008. Company founded
  • 2014. Company  acquired by Catalent Pharma Solutions (NYSE: CTLT) 


Carolyn Bertozzi, Brian Carlson, Peng Wu, Isaac Carrico, and Jason Rush