Creyon Bio
Pharmaceutical ManufacturingCalifornia, United States11-50 Employees
Creyon Bio is a San Diego-based pharmaceutical manufacturing company with 11–50 employees. It operates as an AI-driven drug development firm that designs tissue-specific, RNA-targeted nucleic acid therapies intended to be safer, more effective, and to support patient adherence. The company focuses on conditions where current RNA therapies face barriers to delivery and tolerability, including neuromuscular, central nervous system, and immunology disorders. Its mission is to unlock the therapeutic potential of RNA medicines through intelligent design, precise delivery, and a deep understanding of tissue biology to improve patient outcomes and quality of life, with a long-term view of tissue-aware, computationally designed, patient-centered RNA medicines. In 2025, Creyon Bio announced the appointment of Serge Messerlian as chief executive officer and entered into a partnership with Eli Lilly worth over $1 billion to develop RNA-targeted oligonucleotide therapies. Public disclosures indicate revenues in the range of $10–25 million and funding of $40 million.