Astor

Astor is a Y Combinator-backed company that aI advisor for retail investors. Based in San Francisco, USA, the company participated in the Summer 2025 batch of Y Combinator.

Astor is an AI investment advisor for retail investors.

Founded by Bruno Koba (Nubank, monashees) and Daniel Tulha (Stripe, Robinhood), Astor gives every active investor an AI investment advisor working around the clock to surface their next great investment. We're backed by YC (S25).

Retail investors now account for 25% of all U.S. trading volume, nearly double from 2012. But over 56% still say they don't feel confident in their investment decisions. Astor fixes that.

Astor was part of Y Combinator's Summer 2025 cohort, has a team of approximately 5 employees, and is actively operating.