#unicorns

A total of 28 companies joined The Crunchbase Unicorn Board in April, with robotics startups and frontier labs leading by number of entrants for the second consecutive month.

Artificial intelligence unicorns are multiplying fast, and not all of them deserve the attention they get. This guide covers the most valuable private AI companies of 2026, what they actually build, who is paying for it, and what separates genuine commercial value from inflated numbers.