GCommercial offer for private customers at: https://www.cgd.pt/Particulares/Pages/Particulares.aspx Commercial offer for corporate customers at: https://www.cgd.pt/Empresas/Pages/Empresas.aspx n.a  G4-5 Location of the organization's head office CGD's head office is located at Avenida João XXI, 63, 1000300 Lisbon.