| 1 | | Operario | marbella |  ES | | | N/A | Cepsa | N/A | Madrid, Madrid, Spain | Oil & Energy | N/A | +34 977175918 |
| 2 | | Operario | bilbao | ES | | | N/A | Michelin | N/A | Auvergne, France | Automotive | N/A | +33 473322000 |
| 3 | | Operario | barcelona | ES | | | N/A | Dalli Group | N/A | Cologne, Nordrhein-Westfalen, Germany | Consumer Goods | N/A | N/A |
| 4 | | Operario Rsu | madrid | ES | N/A | | N/A | Fcc Environmental Services | N/A | The Woodlands, Texas, United States | Environmental Services | The Woodlands, Texas, United States | +1 8776423702 |
| 5 | | Operario De Limpieza | barcelona | ES | N/A | | N/A | Interserve | N/A | Berks, West Berkshire, United Kingdom | Printing | N/A | +44 1612009300 |
| 6 | | Operario Producciã³n | valencia | ES | N/A | | N/A | Natra | N/A | Madrid, Madrid, Spain | Food Production | N/A | +34 914178868 |
| 7 | | Operario De Lã Nea | murcia | ES | N/A | | N/A | Carmencita (Jesus Navarro S.A.) | N/A | Novelda, Valencia, Spain | Food Production | N/A | N/A |
| 8 | | Operario | N/A | ES | N/A | | N/A | Gestamp | N/A | Madrid, Madrid, Spain | Automotive | N/A | +34 948978300 |
| 9 | | Operario De Transporte | jaca | ES | N/A | | N/A | Enagás | N/A | Madrid, Madrid, Spain | Mining & Metals | N/A | N/A |
| 10 | | Operario | irun | ES | N/A | | N/A | Fagor Ederlan S. Coop. | N/A | Eskoriatza, Basque Country, Spain | Automotive | N/A | +34 943719000 |
| 11 | | Operario De Cabeceras | bilbao | ES | N/A | | N/A | Eika | N/A | Oslo, Oslo, Norway | Banking | N/A | +47 22149623 |
| 12 | | Operario En Linea De Produccion De Empresa Alimentaria | valencia | ES | N/A | | N/A | Font Salem Sociedad Limitada | N/A | Spain | Food Production | N/A | N/A |
| 13 | | Operario | barcelona | ES | | N/A | N/A | Uralita | N/A | Madrid, Madrid, Spain | Building Materials | Madrid, Madrid, Spain | +34 915949000 |
| 14 | | Operario Fundiciã³n | bilbao | ES | | N/A | N/A | Fiasa | N/A | Rio Tercero, Cordoba, Argentina | Automotive | N/A | N/A |
| 15 | | Operario | barcelona | ES | | N/A | N/A | Bioiberica Sa | N/A | Barcelona, Catalonia, Spain | Pharmaceuticals | N/A | N/A |
| 16 | | Operario | zaragoza | ES | | N/A | N/A | Tereos | N/A | France | Food Production | N/A | +33 322877676 |
| 17 | | Operario Cine | usansolo | ES | | N/A | N/A | Cidesa | N/A | Asuncion, Central, Paraguay | Human Resources | N/A | +595 216160000 |
| 18 | | Operario En Farmacã Utica | tiana | ES | | N/A | N/A | Uriach | N/A | Barcelona, Catalonia, Spain | Pharmaceuticals | N/A | +34 938649692 |
| 19 | | Operario | madrid | ES | | | N/A | Indra | N/A | Alcobendas, Madrid, Spain | Aviation & Aerospace | Alcobendas, Madrid, Spain | +34 923126610 |
| 20 | | Operario De Lã Nea | valencia | ES | | N/A | N/A | Vaersa Valenciana De Aprovechamiento Energetico De Residuos Sa | N/A | Valencia, Comunidad Valenciana, Spain | Accounting | N/A | N/A |