- Jipson Design
- Jirui industrial Ltd
- JIS (Europe) Ltd
- Jiso Iluminacion, S.L.
- JITKA SKUHRAVA GLASS
- Jiu Jiang Fared Optics Co., Ltd.
- JIUHUA GROUP NIGERIA LTD
- JiuJiang CaiXing Sanitary & Bath Co., Ltd.
- JJ Pierson & Sons
- JJ+ estudio
- jjoo design
- JK Architecture Engineering
- JK architekci
- JK Lab Architects
- JK lighting
- JKMM Architects
- JKURTZ Architects
- JLBM,architect
- JLE Arquitectos