Superior Mechanical Systems, 600 Atando Ave, Charlotte, NC 28206, US

Founded in 1948, Mechanical Contractors has been designing, installing and maintaining mechanical systems in Charlotte and Raleigh, N.C., for more than 50 years. Nearly 70 percent of the company s annual volume is performed within a design/build structure, in which Mechanical s estimators prepare a quotation, the company s full-service engineering department draws up the plans using computer-aided drafting technology and its project managers see it through the construction phase to deliver the final product. In addition to design and installation, the company s commercial and industrial service department maintains a 15-vehicle fleet that offers 24-hour emergency service. Mechanical Contractors employs approximately 150 people at its offices in Charlotte and Raleigh.