looking for translator - psychology research

hi all,
I'm looking for a certified translation company to handle english to spanish translation (and possibly other languages such as russian, hindi and chinese/mandarin) of neurospychological tests.
it is crucial that the company has experience in psychology research translations.

if you belong to one of these, i'd like the following:
- name of company
- location (I would prefer if it were in the Philadelphia, PA, area)
- usual rate charged for translation.

thank you much!

Dear Psyche,
This is not a commercial forum or market place. Only queries or lexical contributions are accepted.
Thanks!

Hello, I think there is a link to translations above the heading in this page, next to the logo.

See you!