Our leadership team

Daniel Nathrath

Co-founder & Chief Executive Officer

Daniel is driving Ada's overall success by developing and disseminating its long-term strategy in close collaboration with the leadership team. For 2 decades, Daniel has led the charge to bring transformational technology to new industries. He founded and led several internet startups based in Denmark, Germany, the US, and the UK. After studying law as a Fulbright Scholar at the University of Houston, he earned his Master of Business Administration at the University of Chicago. Daniel worked at Boston Consulting Group before starting his entrepreneurial journey.

Dr. Claire Novorol

Co-founder & Chief Medical Officer

Claire is a trained medical doctor. She worked as a pediatrician in London before specializing in clinical genetics. She earned a degree in both pathology and medicine from the University of Bristol, and a PhD in neuroscience from the University of Cambridge. Claire oversees medical quality and our medical teams. She gives a voice to patients and healthcare professionals to make sure our products meet their needs.

Prof. Dr. Martin Hirsch

Co-founder & Chief Scientific Advisor

Martin has a PhD in neuroscience and a diploma in physiology. A medical researcher turned entrepreneur, Martin shifted from theory to innovation after publishing his work on nerve modeling in the scientific journal Nature. His first venture was a nerve modeling program that saved thousands of animals from lab testing. He developed the first version of Ada for doctors and continues to shape the way Ada learns today. Martin is a grandson of the celebrated Nobel Laureate Werner Heisenberg.

Patrick Wetherille

Chief Operating Officer

Patrick Wetherille is the COO of Ada, leading daily operations while shaping the organization's strategic vision to empower individuals to actively manage their health and access appropriate care. Prior to joining Ada, Patrick served as CEO of Lose It!, driving the company to growth, profitability, and its acquisition by Everyday Health Group (a Ziff Davis Company) in 2022, where he served as Managing Director. He holds an MBA from Harvard Business School, an MPP from Georgetown University, and a BA in Economics and Political Science from Haverford College.

Graham French

Chief Technology Officer and SVP Engineering

Graham leads the strategy and execution for Ada's technology team. Graham is a hands-on technology leader with 25 years of experience spanning multiple technologies, including natural language processing, knowledge graphs, commerce, and developer infrastructure. Before Ada, he spent 10 years at Amazon and Meta in senior leadership roles and founded Amazon's Cambridge (UK) Development Center to build and launch Alexa's question-answering capabilities.

Nick Altebrando

Chief Product Officer

Nick has more than 20 years of experience in health tech, including leadership roles at startups focused on AI-based personalized nutrition, telehealth, and digital behavioral health. At Ada, he oversees the product, marketing, and design teams. His team's mission is to leverage Ada's responsible AI for screening and care navigation to drive superior health outcomes for customers and users.