| 1 | | Operaria | madrid |  ES | | | N/A | Psa Peugeot Citroën | N/A | Paris, Île-De-France, France | Automotive | N/A | N/A |
| 2 | | Operaria | bilbao | ES | | | N/A | Eika | N/A | Oslo, Oslo, Norway | Arts and Crafts | N/A | +47 22149623 |
| 3 | | Operaria | madrid | ES | N/A | | N/A | Repsol | N/A | Madrid, Madrid, Spain | Oil & Energy | N/A | +34 916302709 |
| 4 | | Operaria | barcelona | ES | N/A | | N/A | The Dow Chemical Company | N/A | Midland, Michigan, United States | Chemicals | Midland, Michigan, United States | +1 5024495200 |
| 5 | | Operaria De Limpieza | barcelona | ES | N/A | | N/A | Acciona | N/A | Comunidad De Madrid, Madrid, Spain | Arts and Crafts | N/A | +34 900866002 |
| 6 | | Operaria De Cadena | valladolid | ES | N/A | | N/A | Visteon Corporation | N/A | Michigan, United States | Automotive | N/A | +1 6148713527 |
| 7 | | Operaria De Servicios | bilbao | ES | N/A | | N/A | Osakidetza | N/A | N/A | Health, Wellness and Fitness | N/A | N/A |
| 8 | | Operaria | barcelona | ES | N/A | | N/A | Grupo Moldtrans | N/A | Montcada I Reixac, Catalonia, Spain | Transportation/Trucking/Railroad | N/A | N/A |
| 9 | | Operaria Laboratorio | N/A | ES | N/A | | N/A | Famar | N/A | Athens, Attiki, Greece | Pharmaceuticals | N/A | +30 2109898100 |
| 10 | | Operaria | barcelona | ES | N/A | | N/A | Mecaplast Group | N/A | Monaco, Monaco | Automotive | N/A | N/A |
| 11 | | Operaria | fuenlabrada | ES | N/A | | N/A | Psa Peugeot Citroën | N/A | Paris, Île-De-France, France | Automotive | N/A | N/A |
| 12 | | Operaria | barcelona | ES | | N/A | N/A | Smp Automotive Global | N/A | Germany | Automotive | N/A | N/A |
| 13 | | Operaria De Produccion | leon | ES | | N/A | N/A | Plastic Omnium | N/A | Perret, Brittany, France | Automotive | N/A | +33 322546300 |
| 14 | | Operaria | valladolid | ES | | N/A | N/A | Semius | N/A | N/A | Graphic Design | N/A | N/A |
| 15 | | Operaria Confecciã³n | granada | ES | | N/A | N/A | Busqueda Activa De Empleo | N/A | N/A | Textiles | N/A | N/A |
| 16 | | Operaria | barcelona | ES | | N/A | N/A | Ficosa | N/A | Barcelona, Catalonia, Spain | Automotive | N/A | +52 8181540400 |
| 17 | | Operaria | barcelona | ES | | N/A | N/A | Yo Misma | N/A | Spain | Fine Art | N/A | +34 602197343 |
| 18 | | Operaria | santa cruz de tenerife | ES | | N/A | N/A | Servicio Canario De Salud | N/A | Spain | Hospital & Health Care | N/A | +34 922951969 |
| 19 | | Operaria | madrid | ES | | N/A | N/A | Liconsa | N/A | N/A | Pharmaceuticals | N/A | +52 8008006939 |
| 20 | | Operaria | pamplona | ES | | | N/A | Cinfa | N/A | Navarra, Navarre, Spain | Pharmaceuticals | Navarra, Navarre, Spain | +34 948335005 |