| QUA3 ENGINYERIA I ARQUITECTURA | BARCELONA |
| QUABER | BARCELONA |
| QUABU SOLUTIONS | BARCELONA |
| QUACKERY | BARCELONA |
| QUACKS PRODUCTS | BARCELONA |
| QUAD EXPLORER | BARCELONA |
| QUAD NATIONAL MOTOR ESPAÑA | BARCELONA |
| QUAD&ATVSPORTWEAR | BARCELONA |
| QUAD'S ANOIA | BARCELONA |
|
|
| QUAD'S LLUIS | BARCELONA |
| QUADERN ARQ SOCIS | BARCELONA |
| QUADERN GRAF | BARCELONA |
| QUADERNA ESTRATEGIA CORPORATIVA | BARCELONA |
| QUADERNS CREMA | BARCELONA |
| QUADEST | BARCELONA |
| QUADMASTER | BARCELONA |
| QUADPACK INDUSTRIES | BARCELONA |
|
|
| QUADPACK MANUFACTURING DIVISION | BARCELONA |
| QUADPACK PLASTICS | BARCELONA |
| QUADPACK SPAIN | BARCELONA |
