Highest salary at Yale Es in year 2017 was $62,000. Number of employees at Yale Es in year 2017 was 24. Average annual salary was $27,905 and median salary was $32,163. Yale Es average salary is 40 percent lower than USA average and median salary is 26 percent lower than USA median salary. From 2016 to 2017, the average salary of employees at this employer increased 4.3 percent, the median salary increased 1.2 percent.