Ninety-nine percent of employees say the staffing agency has a great atmosphere. Roth Staffing, where 70% of workers are women, offers a 9/80 flex schedule in which coworkers can work 9 longer days and get every other Friday off. That equals 26 three-day weekends throughout the year. About 79% of employees take advantage of it. The company also recognizes top performers with an annual all-expenses paid trip to Maui, one guest included. Read the Great Place to Work review.