Credential Evaluation (for H1B) - Please suggest Agencies that are good...


I would like to know if there is a list of “recommeneded” Agencies who do the Credential Evaluation? I want to know this information in regards to H1B application. My all credentials are from india.

Please let me know about the services… Which ones are good/bad or quick/slow etc… Please share any related experiences and recommend few for the H1B related work (I came to know that they mostly need the main docunments Evaluated and not the course-by-course evaluation, I hope that’s true)

Thanks in advance.