| Cromados Belen S. A. | Alajuela, | 2438-1993 | cromadosbelen@yahoo.es | | |
| Cromados De Costa Rica S.A. | Heredia, Heredia | 2239-1540 | | | |
| Cromados Guillermo Chacon | San José, Goicoechea | 2222-9071 | | | |
| Cromotec S.A. | San José, Santa Ana | 2282-6740 | | | |
| Cromotico | San José, Goicoechea | 2222-9071 | guillermo@cromotico.com | www.cromotico.com | |
| Cromozinc | San José, Moravia | 2236-2976 | alvarogmora@yahoo.es | | |
| Industrias De Niquelado Lanzoni | San José, San José | 2222-7252 | | | |
| Industrias Ferroquimicas S. A. | San José, San José | 2257-0485 | acalfr@racsa.co.cr | | |
| Mex S.A. | San José, Desamparados | 2254-2686 | | | |
