These are the 10 largest employers in Chattanooga Erlanger Health System, 7,870 full-time employees, 1,691 contractors and 589 part-time employees. BlueCross BlueShield of Tennessee, 5,193 full-time employees and 61 part-time employees. Hamilton County Schools, 4,674 full-time employees and 1,458 part-time employees. More items... May 1, 2019