I am looking for a professional translation company in BKK with experience in marriage visa for me to stay in Thailand that can also submit the documents to the embassy for me or assist me at the embassy. The main requirement is that they guarantee their work and I don't get charged extra fees if they don't get it right and cause me to have to submit the forms again.

My embassy provided me with a number of Translators in their area. Ask your embassy for the same.

Here is a list of translators from the US embassy. http://photos.state.gov/libraries/thailand/231771/acs/translators_internet_service_photographers.pdf

I think most embassies even only accept those approved agencies...

Here is a list of translators from the US embassy. http://photos.state.gov/libraries/thailand/231771/acs/translators_internet_service_photographers.pdf

Thank you for that I will try the first one on the list A Language Lover's Translation Center they seem to have the most services so I can get my photo's done their also, has anyone had experience with them