Williams Mechanical LLC, 4536 Hickory Hollow Rd, Pegram, TN 37143, US

Established in 1885, Johnson Controls is one of the leading manufacturers of batteries for automobiles and hybrid electric vehicles. The company has a staff of more than 14,000 trained and certified professionals throughout the world. It offers a range of security-related solutions that include access control, badging, remote monitoring, video surveillance, inspection and visitor management services. Johnson Controls designs and undertakes commercial, residential and industrial projects. The company offers assessment and performance improvement services that include equipment analysis, personal coaching, on-site training and mentoring. Additionally, it provides seating systems, cockpits, floor consoles and door panels. Johnson Controls maintains its corporate headquarters in Milwaukee.