• ACM (VE)
  • Agenda Natural Energy (PD)
  • Astrim S.p.A. (PD)
  • Cogeme S.p.A. (BS)
  • CPL Concordia (BO)
  • Cristoforetti servizi energia s.r.l. (TN)
  • De Santis impianti s.r.l. (PD)
  • Ecoware S.p.A. (PD)
  • GT Energy
  • Guerrato S.p.A. (RO)
  • Manutencoop Facility Management (BO)
  • PVB Solution (TN)
  • Sinergie S.p.A. (PD)
  • Siram S.p.A. (MI)
  • Veritas spa (VE)