We do not think we are the perfect answer for all couples, so we want people to know that there are some good alternatives (and maybe a warning about the others). So here is a list of some other service providers who offer legal document services to assist with your marriage registration in Thailand.
Siam Legal
http://www.siam-legal.com/purchase/purchase-thailand-marriage.php or
http://www.marriagethailand.com/marriage-registration.php or
http://www.marrythailand.com/
Those are all sites belonging to Siam legal
Chaninat and Leeds
http://www.thailand-lawyer.com/marriage.html
SunBelt Legal Advisors
http://www.sunbeltlegaladvisors.com
Thailand for You
Not at all recommended, as they used our client’s photos without permission and ignored the requests to remove them.
http://www.th4u.com/thai_marriage.htm