Hi Merkadados,

Everything depends on your needs. There are some bilingual companies out there that could give you good content either in English or Spanish but if your goals are set for SEO you need a proper keyword research in both languages as well as keyword rich content generation.

In order to take care of all these needs you need a bilingual SEO company that could provide you with the whole package. Some companies might give you good quality content but not SEO targeted copy, whereas other might give you a good keyword research and SEO compliance in terms of keyword density but not enough linguistic an cultural awareness.

WebCertain has both spanish native speakers versed in linguistics and communication and the general SEO awareness that could cater for your needs.