The Yahoo-owned shopping site caters meals into the office Monday-Thursday and pays for employees to enjoy lunch out of the office each Friday. Employees also participate in weekly team runs, health bake-offs, among other team-building activities. 69% of the company’s executive team is female, and new mothers are encouraged to take off 180 days of maternity leave in addition to the time required by the Family and Medical Leave Act. Read the Great Place to Work review.