23. Patrick Brown — Founder & CEO of Impossible Foods

Patrick "Pat" O'Reilly Brown is the chief executive and founder of Impossible Foods, the company at the forefront of the plant-based "meat" movement. He founded the company in 2011, and in 2016 the now famous Impossible Burger launched in restaurants.

Unlike traditional vegetarian and vegan burgers, which are typically crumbly in texture and made mainly from pulses, the Impossible Burger is remarkably close to meat in taste and texture, and has since spawned a wave of similar products launching across the globe.

Designed to be good for both people and the planet, and to appeal to meat-eaters as well as veggies, the "meat" can also be eaten as meatballs or mince for the likes of tacos. The company claims that each time someone eats one of their burgers as opposed to a meat version, they save the equivalent of a 10-minute shower's worth of water and 18 driving miles of greenhouse gas emissions. Earlier this year, Burger King rolled out Impossible Whoppers across the US.

Read more: This Silicon Valley startup behind the veggie burger that 'bleeds' just fixed its biggest problem