Avenidas is a Palo Alto-based nonprofit that has helped older adults on the mid-Peninsula stay active, connected and independent since 1969. From its flagship enrichment center at 450 Bryant Street, plus the Rose Kleiner adult day health center in Mountain View, it runs fitness, arts and lifelong-learning classes, door-to-door transportation, caregiver support, the Avenidas Village aging-in-place membership, a Chinese Community Center and an LGBTQ Rainbow Collective - serving thousands of seniors and their families each year.
Chapter is an AI-native Medicare advisory platform that helps older Americans choose the right Medicare and retirement healthcare coverage. Instead of acting as a commission-driven marketplace, Chapter reviews plans from every insurance carrier nationwide and pairs that data with licensed, independent advisors to deliver unbiased recommendations. Founded in New York in 2020, the company has supported more than 500,000 enrollees and crossed $100 million in annual recurring revenue.
Cobi Blumenfeld-Gantz is the CEO and co-founder of Chapter, an AI-powered Medicare navigation platform he started in 2020 after watching his own parents struggle to enroll. Built with co-founder Vivek Ramaswamy and early backing from J.D. Vance, Chapter crossed $100 million in annual recurring revenue and raised a $100 million Series E in April 2026 at a roughly $3 billion valuation. A former Palantir government-team lead with degrees from Wharton and Cambridge, he calls himself one of the most hated people in the Medicare brokerage business precisely because Chapter's advisors are paid to recommend the best plan rather than the most lucrative one.