I don't know for certain if AWS does custom contract training but if they do this person should be able to tell you:
Natalia Lopez de Quintana Senior Education Coordinator
nlopez@aws.org
Here is another lead ... This guy is a consultant/trainer I hold in the highest regard:
AMoore999@comcast.net
Consulting/Inspection - Welding, NDT, and Training
The other excellent sourse of training I know about is the Hobart Institute of Technology.
They deliver training and certification services to clients worldwide.
http://www.welding.org/s-3-certification.aspx