Association of English translation to Spanish language

My firm is in association with other book formulators and communication companies,We are working on some new research projects on our company which is to be published on our website, so We are looking for native speakers who can translate from English to Spanish to carry-out the translation of the Spanish version, to redraft, issue, duplicate, transcribe and refine some few suitable books from English to Spanish, so we're looking for a domestic Spanish translators who is cogent in the Spanish regional tongue.