Corbin Russwin has been a leader in high-quality commercial grade hardware targeted at commercial and institutional facilities. The company offers ANSI/BHMA Grade 1 mortise locks, cylindrical locks, exit devices, door control, high security key systems and electromechanical and access control hardware.

Founded in 1989, DynaLock Corporation. manufactures high security locking and access control products. It's modern 18000 square foot facility in Bristol, CT utilizes the latest in computerized machining centers and robotics. DynaLock Corporation. specializes in the manufacture of UL listed electromagnetic locks and delay egress systems.

Founded in 1864, McKinney Products Company designs and manufactures high-quality architectural hinges for commercial use. With roots in Cincinnati OH, McKinney manufactured in the heart of the Pennsylvania steel industry for many years. McKinney became an ASSA ABLOY Group company in 1996. McKinney offers the broadest range of full mortise hinges in a variety of metals, finishes, sizes, and weights to meet all security applications.