- Josef Hain GmbH & Co. KG
- Josef Mountain Resort
- JOSEF PINTZ
- Josep Ferrando Architecture
- Josep Ruà Spatial designer
- joseph abate
- JOSHI EXPO ITALY
- Joshua Florquin Architecture
- Joshua Rice Design
- JOSKA KRISTALL GmbH & Co. KG
- Josko Fenster & Türen GmbH
- Jost Architects
- jot.jot
- JOTA
- JOTA SRL
- JOTAZ S.A.S.
- Jotto
- JØTUL ITALIA
- Jouin Manku