| XPOL BUSINESS WORLD | BARCELONA |
| XPONENT TRIPLE AQ | BARCELONA |
| XPONENTIA, DESARROLLO DE NEGOCIO | BARCELONA |
| XPORC DE CARDONA | BARCELONA |
| XPRESA BIOENERGY | BARCELONA |
| XPRESA GEOPHYSICS | BARCELONA |
| XPRESA GEOTECNICS | BARCELONA |
| XPRESA HOLDING GRUP EMPRESARIAL | BARCELONA |
| XPRESA MARKETING Y COMUNICACION | BARCELONA |
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| XPRESA PROJECT MANAGEMENT | BARCELONA |
| XPRESA REAL ESTATE SERVICES | BARCELONA |
| XPRESA SERVEIS IMMOBILIARIS | BARCELONA |
| XPRESS GREEN SOLUTIONS | BARCELONA |
| XPRESS XRMAC | BARCELONA |
| XPROGUAR | BARCELONA |
| XPTITS SERVEIS EDUCATIUS | BARCELONA |
| XQM 2009 | BARCELONA |
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| XR 66 | BARCELONA |
| XR ASSETS & INVESTMENTS | BARCELONA |
| XR2303 FP, FORMACION Y RECICLAJE | BARCELONA |
