Ško-energo
ORLEN Unipetrol RPA
ORLEN Unipetrol RPA – Česká rafinérská
Lovochemie
KSB
Spolchemie
Siemens
Bilfinger Industrial Services GmbH
AGC Flat Glass
ARVOS Ljungström s.r.o.
Linde
Slovpump
Synthomer
MERO / LK pumpen
Sigma
Air Products