Employees also get such benefits as three to four weeks of vacation per year and tuition reimbursement.?No. 4 SAS, Cary, N.C.?SAS employees at the Cary (N.C.) headquarters get three weeks vacation per year, flexible working schedules, subsidized on-site child-care centers (with subsidized child care in regional offices), on-site summer camp for school age children, and on-site fitness and health c