22. Marie Berry

Cofounder and CEO, Kara

My company: Kara is a marketing software that automates the production of marketing material, while maintaining brand integrity.

Why I started it: Having worked as a marketing exec for brands such as Ford, Chanel, and Adidas in North America, Europe, and Asia, I experienced firsthand how manual and inefficient the marketing production process is. I started Kara because I want to fix this problem and help marketers to deliver brand-perfect marketing material at scale.

My advice for starting a company like mine: Grit or quit — building a company is like a boxing match. Your only chance at winning is to step into the ring with the mindset that you are prepared to deal with whatever comes your way.