What is the highest number of people occupying the ISS at on time ?
The total number of employees in the Group reached 200 , 0002000 A new five - year strategy “ create2005 “ was launched , introducing the Facility Services concept2003 ISS ’ first major pan-European Integrated Facility Services contract signed2005 A new strategy was introduced aiming at a continuous transformation of ISS towards an Integrated Facility Services company .