Best Places to Work in Healthcare - 2020 Yoga classes taught and attended by Protenus team members All <Prev Next> Rank 13 - Supplier Protenus Supplier, Baltimore , MD Tweet Share Share Email More Years on the list: 3 Number of U.S. employees: 76 Voluntary employee turnover: 12% What employees love: Flexible work schedules with unlimited PTO; can bring pets to work; 12 weeks paid family leave for new moms and dads