Jim Browning seems to still make Dye transfers : http://www.dyetransfer.org/
In Germany there is Dye transfer international :http://www.dyetransfer.de/process.html
Charles Cramer still does Dye transfers: http://www.charlescramer.com/dyetransfer.html
CVI lab in NYC wasn't able to find a website their contact data is:
Cvi Lab Dye Transfer
(212) 226-3399
23 Prince St, New York, NY