Headspace

• Total Equity Funding: $75 million
• Celebrity Investors: Jared Leto, Cash Warren, Jessica Alba, Ryan Seacrest

Between Sting's tantric yoga practice and the selection of $956 toiletry collections from Gwyneth Paltrow's Goop company, it's well known that celebs are fans of new-age wellness practices. Maybe that's why Headspace, a guided meditation app and multi-day digital course in mindfulness, has attracted so many celebrities: Jared Leto, Cash Warren, Jessica Alba and Ryan Seacrest all gave undisclosed amounts during a series A funding round that totaled $34.3 million in 2014. In fairness, their bet could pay off, as numerous studies point to real benefits from meditation, ranging from heightened attention spans to greater self-compassion.

Related: Jessica Alba and 21 Other Successful Female Entrepreneurs