OneSource (formerly Stelis Biopharma) is India’s first specialty pharma pure-play CDMO, delivering integrated development and manufacturing support across biologics, drug-device combinations, sterile injectables, and oral technologies, including soft gelatin capsules. Built from a three-decade legacy of specialized drug development and manufacturing, OneSource brings together formulation science, analytical expertise, scalable manufacturing, regulatory alignment, and global-quality systems across a network of five state-of-the-art facilities. Its model is designed to help pharma and biotech partners advance complex programs from early development and technology transfer through clinical supply, commercial manufacturing, fill-finish, device assembly, packaging, and lifecycle support.





