It’s the real life Baby-sitters Club. Meet 15-year-old Noa Mintz, founder of Nannies by Noa, a full-service agency that now serves 190 clients in the tri-state area by matching them with babysitters and full-time nannies. Her startup is “poised to make millions,” and Noa hired a CEO when managing hundreds of business emails a day got to be too much for one high school student. Her business continues to grow, charging 15% of each nanny’s initial gross salary for placement, and has just begun partnering with the Ivy Key tutoring and test-prep service. (New York Post)