Automotive Service Excellence


ASE's Mission is to improve the quality of vehicle repair and service through the testing and certification of repair and service professionals. About 400,000 professionals hold current ASE credentials.




Automatic Transmission Service Group

ATSG is the largest, Employee-Owned, technical support service in the Automatic Transmission Industry. We offer a Technical Hotline, Books, Software, Bulletins, Seminars, and Technical Courses to the Automatic Transmission Professional.