Whether it's your garage, gate or door, The Chamberlain Group, Inc. (CGI) controls and protects the biggest entryways to home ... s and commercial properties worldwide with its Chamberlain® DIY, Merlin® and Grifco® brands. A leader in residential garage door openers, commercial door operators, gate access solutions and related accessories, CGI's innovative products keep families safe, secure and connected. Our global experience and innovation has resulted in industry leading designs and some of the most reliable and efficient products available in Australia and New Zealand. The Chamberlain Group, Inc. is the world's largest manufacturer of residential and commercial door operators, access control products and gate operators. read more