| QUADRES ELECTRICS MATARO | BARCELONA |
| QUADRES HORTA | BARCELONA |
| QUADRICULA COMUNICACIO GLOBAL | BARCELONA |
| QUADRIGA REAL ESTATE | BARCELONA |
| QUADRIGAL PROCESS ENGINEERING | BARCELONA |
| QUADRIGRAM | BARCELONA |
| QUADRIVIUM 2015 | BARCELONA |
| QUADROMANIA | BARCELONA |
| QUADRUPLE | BARCELONA |
|
|
| QUADS EMOCION | BARCELONA |
| QUADS I MOTOS DEL VALLES | BARCELONA |
| QUADS MANRESA | BARCELONA |
| QUADS MARIN | BARCELONA |
| QUADS MONTSENY | BARCELONA |
| QUADS SABADELL | BARCELONA |
| QUADS SITGES NEEX | BARCELONA |
| QUAESTIO IURIS | BARCELONA |
|
|
| QUAESTOR INVESTMENTS | BARCELONA |
| QUAESTOR INVESTMENTS SICAV | BARCELONA |
| QUAFF BREWERY | BARCELONA |
