Alyssa O’Toole, of Boston, Massachusetts. O’Toole is the founder of Musicians Playground, a Boston-based music studio and community built like a gym for musicians, offering adult hobbyists group classes in piano, voice, drums and guitar, along with music-based team-building events. She’s also the co-founder of Seven, a consulting company helping brick-and-mortar, service-based business owners scale to the $1 million revenue mark.