RxDefine

RxDefine, now known as Ostro, is a healthcare engagement software company focused on the life sciences industry rather than a therapeutics developer. The company builds AI-driven, compliant brand engagement tools that help pharmaceutical, medical device, and diagnostic companies deliver approved information and personalized digital journeys to patients and healthcare professionals. Its products support conversational engagement, content delivery, navigation, and analytics across branded digital channels. Founded in 2019 in Miami, the company rebranded from RxDefine to Ostro in 2022 and was acquired by Veeva Systems in March 2026 for approximately $100 million. Ostro continues to operate as an independent unit within Veeva and is integrated with Veeva's commercial life sciences software strategy.