Highest salary at Nsseo in year 2018 was $307,767. Number of employees at Nsseo in year 2018 was 200. Average annual salary was $54,354 and median salary was $56,349. Nsseo average salary is 16 percent higher than USA average and median salary is 30 percent higher than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 11.5 percent, the median salary increased 6.3 percent.