| JC DESGUACES | ASTURIAS |
| JC INFRAESTRUCTURAS | ASTURIAS |
| JCFOREIGNEXCHANGE | ASTURIAS |
| JCL 48 | ASTURIAS |
| JD PRO-SPORT BICYCLE | ASTURIAS |
| JEDUAR DESARROLLOS DE INVERSIONES | ASTURIAS |
| JEFRASTUR | ASTURIAS |
| JEKEMA MULTISERVICIOS | ASTURIAS |
| JELK INNOVATION | ASTURIAS |
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| JEMARVI NARCEA | ASTURIAS |
| JEMOVALPA | ASTURIAS |
| JEMS OF JUPITER | ASTURIAS |
| JEN DE LA JUNGLA | ASTURIAS |
| JENCO RESTAURACION | ASTURIAS |
| JENNMAR SPAIN | ASTURIAS |
| JERONIMO ALVAREZ CONSTRUCCIONES | ASTURIAS |
| JEROSA SERVINOR | ASTURIAS |
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| JESALVAR 2005 | ASTURIAS |
| JESFER CIEN | ASTURIAS |
| JESUS & ALBERTO CAR | ASTURIAS |
