He waited nearly 20 years to start a company. Now he's the cofounder of a double unicorn.

Snehal Antani became a cofounder in his late 30s. His AI hacking startup, Horizon3, now has a market value above $2 billion. Courtesy of Horizon3 Horizon3 CEO Snehal Antani spent two decades building the skills he believed he'd need to be a founder. Antani said that experience helped the startup survive a funding crunch and the collapse of Silicon Valley Bank. There was one skill, though, he hadn't learned and got a crash course in: fundraising. Earlier this month, the AI hacking startup…