Ritu Narayan is a busy mom who found herself with a problem when her kids began going to school: she no longer needed a nanny, but she did need a reliable, safe driving and babysitting service that she could trust to take care of her kids when she could not. So, Zum was born. Zum is a ride sharing service that offers parents a network of vetted childcare providers who can drive your children to their various activities and babysit if you choose.