- Z Elektronika kft
- Z Lab Engineering
- Z Lab Engineering
- Z. DUE sas
- Z. Mosessco Architect & Townplanner Ltd.
- z.a.i. SRL
- Z.A.TERMOFRIGOTECNICA
- Z.D. DI ZANIN DAVIDE E C.
- Z.E.RI.CO.
- Z.F. Srl
- Z.G.CAMINI INOX SRL
- Z.G.CAMINI INOX SRL
- Z.I. Lattonerie
- Z.I.A.C.
- Z.S.E Ospel S.A.
- Z.Style
- Z3 Arquitectura Interior
- Z3Z ARCHITEKCI
- Z4Z4 AAA
- z5ai -Marco Gigliotti Architetto