| 1 | | Obrero | vigo |  ES | | | N/A | Psa Peugeot Citroën | N/A | Paris, Île-De-France, France | Automotive | N/A | N/A |
| 2 | | Obrero | a coruña | ES | N/A | | N/A | Honeywell | N/A | Morristown, New Jersey, United States | Electrical/Electronic Manufacturing | N/A | +1 8778412840 |
| 3 | | Obrero | bilbao | ES | N/A | | N/A | Vidrala | N/A | Alava, Asturias, Spain | Packaging and Containers | N/A | +34 946719700 |
| 4 | | Obrero | N/A | ES | N/A | | N/A | Dragados Sa | N/A | Madrid, Madrid, Spain | Construction | N/A | +34 934856642 |
| 5 | | Obrero | madrid | ES | N/A | | N/A | Abwe | N/A | Harrisburg, Pennsylvania, United States | Religious Institutions | Harrisburg, Pennsylvania, United States | N/A |
| 6 | | Obrero | barcelona | ES | N/A | | N/A | Dragados Sa | N/A | Madrid, Madrid, Spain | Construction | N/A | +34 934856642 |
| 7 | | Obrero | N/A | ES | N/A | | N/A | Auxiliar Conservera S.A. | N/A | Molina De Segura, Murcia, Spain | Packaging and Containers | N/A | N/A |
| 8 | | Obrero Sin Especializaciã³n | barcelona | ES | N/A | | N/A | Securitas | N/A | Badhoevedorp, North Holland, Netherlands | Security and Investigations | Badhoevedorp, North Holland, Netherlands | +31 883221100 |
| 9 | | Obrero Agrã Cola | murcia | ES | N/A | | N/A | Semilleros Jimenado | N/A | N/A | Farming | N/A | N/A |
| 10 | | Obrero | madrid | ES | N/A | | N/A | Fmt | N/A | Findlay, Ohio, United States | Machinery | Findlay, Ohio, United States | +1 4194343100 |
| 11 | | Obrero Guarro | bilbao | ES | | N/A | N/A | Arcelormittal | N/A | Luxembourg | Mining & Metals | N/A | +44 1724810000 |
| 12 | | Obrero | zaragoza | ES | | N/A | N/A | Faurecia | N/A | Nanterre, Ile-De-France, France | Automotive | N/A | +33 389628200 |
| 13 | | Obrero Especialista | ciudad real | ES | | N/A | N/A | Exide Technologies | N/A | Milton, Georgia, United States | Automotive | Milton, Georgia, United States | +1 4043280899 |
| 14 | | Obrero | burgos | ES | | | N/A | Bridgestone | N/A | Nashville, Tennessee, United States | Automotive | Nashville, Tennessee, United States | +1 7026373217 |
| 15 | | Obrero | madrid | ES | | | N/A | Mercadona | N/A | Tavernes Blanques, Valencia, Spain | Supermarkets | Tavernes Blanques, Valencia, Spain | +34 917167768 |
| 16 | | Obrero | madrid | ES | | N/A | N/A | Rojo | N/A | Denmark | Construction | N/A | N/A |
| 17 | | Obrero | gijon | ES | | N/A | N/A | Cla | N/A | N/A | Farming | N/A | N/A |
| 18 | | Obrero | madrid | ES | | N/A | N/A | Comfica Soluciones Integrales S.L. | N/A | Spain | Telecommunications | N/A | +34 916856077 |
| 19 | | Obrero | madrid | ES | | N/A | N/A | Pepsico | N/A | Purchase, New York, United States | Food Production | Purchase, New York, United States | +1 5012102430 |
| 20 | | Obrero | bilbao | ES | | N/A | N/A | Michelin | N/A | Auvergne, France | Automotive | N/A | +33 473322000 |