F an Daidi is a Chinese businesswoman who is a co-founder and a major shareholder of Hangzhou Tigermed Consulting, a leading Chinese contract research organization (CRO). A CRO provides outsourced clinical trial and other research services to pharmaceutical and biotechnology companies. She founded the company with her husband, Ye Xiaoping, who serves as chairman.

Tigermed has become a key player in the global drug development industry, helping both domestic Chinese and international pharmaceutical companies to conduct the clinical trials necessary to get their drugs approved. The company's growth has been fueled by the booming Chinese biopharma industry and the increasing trend of outsourcing research and development. The company is publicly listed, and Fan's large stake in the successful enterprise she co-founded is the source of her billionaire status.