Translation of content – multiple languages

We need content for a travel booking system translated into the following languages:
English to:
Spanish
French
Italian
German
It is descriptive and some technical phrases.
Ideally looking for people with travel industry experience
It is around 200 pages and growing.
Each page around 200 words.
Proof reading of the english would also be helpful.
It is ongoing work for the successful candidates.
We would consider a company that can do all the languages.