Retrofit

Retrofit is an AI-curated vintage marketplace that uses AI agents to sift through hundreds of thousands of secondhand listings, analyzing social media trends, sales data and personal style to surface pieces matched to a shopper's taste, size and budget. Founded in 2024 by Sandra Lifshits and Maddy Yip and backed by Y Combinator (W25), it standardizes photography and descriptions from partner vintage stores so shoppers get a clean, personalized feed instead of endless digging.