At year-end 2014, IRIS had 208 employees (194 man-labour years). The proportion of foreign employees equals 25 percent. This is a diverse group representing 23 different nationalities.
Four employees have completed a Ph.D. during the year. The number of researchers having a Ph.D. is now 92 (84 in 2013).
The average age of the employees was 45.3 years at the end of 2014.