GTO, Inc., established 1987, is a leading U.S. based manufacturer of both professional and DIY gate operators and access controls for rural, urban, commercial and industrial environments. GTO, Inc. is a solely owned subsidiary of Nortek, Inc. under the HTG Group. Their brands include: GTO/PRO®, GTO ACCESS Systems®, Mighty Mule®, and Mighty Mule DIY EZ Gates®.