Hi there,
I have been in the same situation, except translation was required from English to German, French or Italian. I checked with my Embassy here in Bern & they had a list online of approved companies that offered translation. I also searched on line for translators of foreign documents, then called for prices. I found the prices to be expensive ranging from 180 CH-FR to 250, just for a birth certificate. I don't know where you are located, so it may be cheaper than here.
Hope that gives you some help.