| XTERN SOLUCIONES EMPRESARIALES | MADRID |
| XTERNA MEDICAL | MADRID |
| XTERNABILIZA GESTION | MADRID |
| XTMPANEL MULTIMEDIA | MADRID |
| XTRABOLD DESIGN STUDIO | MADRID |
| XTRACINEMA | MADRID |
| XTRAGAMES | MADRID |
| XTRAGAMES INTERNATIONAL BUSINESS | MADRID |
| XTRASBETTER | MADRID |
|
|
| XTRATECH INFORMATION SOLUTIONS | MADRID |
| XTRATEGA ARCHITECTURE INVESTMENTS & SOLUTIONS | MADRID |
| XTRATEGO BUSINESS CONSULTANTS | MADRID |
| XTRAVAGANCE CHIC | MADRID |
| XTREAM SISTEMAS DE INFORMACION GLOBAL | MADRID |
| XTREM AIRSOFT DISTRIBUCIONES DEPORTIVAS | MADRID |
| XTREM EVENTS | MADRID |
| XTREM HIPHOP SHOP | MADRID |
|
|
| XTREM PARK | MADRID |
| XTREME BIKE SOLUTIONS | MADRID |
| XTREME ESPECIALIST TRAINNING | MADRID |
