Rezon Bio is a biologics end-to-end CDMO specializing in mammalian drug substance development and GMP manufacturing.

Headquartered in Poland, the company operates two mirrored-capability facilities in Gdańsk and Duchnice audited by EMA and FDA. Drawing on a legacy of biosimilars development and global commercialization, Rezon Bio combines proven experience, digital transparency, and cost-to-value efficiency to help clients move from concept to market with confidence.