1.STRABAG SE
2.Bilfinger SE
3.Dussmann Group
4.Compass Group PLC
5.WISAG Facility Service Holding GmbH
6.Vinci SA
7.SPIE Group
8.Gegenabuer Holding SE
9.Aramark
10.Cushman & Wakefield PLC
11.ISS Facilities Services Inc.
12.Sodexo Inc.
13.Jones Lang LaSalle Incorporated (JLL)
14.Apleona GmbH
15.K?TTER GmbH & Co. KG