Chapter Acquires AI Startup Ridgeway

Oct 22, 2026
Medicare advisory company Chapter acquired Ridgeway, an applied AI startup founded by former OpenAI engineer Hamza Mostafa. Ridgeway staff will join Chapter to develop AI products for retirees.

Chapter announced in a press release that it has acquired Ridgeway, an applied AI startup founded by Hamza Mostafa.

Mostafa and members of Ridgeway's engineering team will join Chapter to develop AI products for retirees. Chapter currently uses AI to help its Medicare advisers identify relevant questions and information for customers.

Before founding Ridgeway, Mostafa worked on ChatGPT Agent and ChatGPT Deep Research at OpenAI. Ridgeway previously raised $2.8 million from Emergence Capital and Susa Ventures.

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