Riley Bridge & Engineering Co

The Johnson Companies began doing business in 1918 as J. K. Johnson Company. Over the century, J. K. Johnson Company's activities eventually expanded to the point that three companies were formed: they are Johnson Contractors, Inc, J. K. Johnson Mechanical Contractors, Inc, and Johnson Electric Company, Inc. These three companies make up the Johnson Companies but are separate and independent companies that provide our customers with the option of a general contracting company, a mechanical contractor, and/or an electrical contractor.

Pettus Mechanical and Plumbing Services is located in Muscle Shoals, Ala. The company has an average annual sales volume of $15 million. The corporation handles large plumbing and mechanical oriented projects in the commercial and industrial sectors. The company has also expanded to include heating, ventilation, controls, pneumatic and air conditioning work. Pettus is licensed to perform mechanical work in 40 states in the United States and general contractor work in six states. The company has completed jobs for International Paper, Wal-Mart, Sam's Club, Target, Tenneco, Sunbeam, Honeywell, Siemens Technologies, Tennessee Valley Authority, NASA, and Lowe's. The company also has branch offices in Mobile, Ala., and Counce, Tenn.

Founded in 1910, M&D Mechanical Contractors Inc. provides mechanical contracting services, to its customers. The firm offers services, such as field installations, pipe/sheet metal fabrication and design build. It serves the industrial, institutional, government and commercial sectors. M&D Mechanical Contractors Inc. has contributed to projects, including Shelby Center for Science & Technology, University of Ala, Madison Street Parking Garage, HSV Hosp and Samford University Boiler Plant #3 & Chiller Plant Expansion. The company is located in Decatur, Ala.