Milledge A. Hart, III a native Texan, is a graduate of the United States Naval Academy. Following service in the Marine Corps, Mr. Hart joined IBM Corporation as a marketing representative. In 1962, Mr. Hart joined Ross Perot as one of the founders of Electronic Data Systems Corp. In 1969, he became Executive Vice President of the company and became President in 1970, the position he held until his retirement in 1977.
Later in 1978 Mr. Hart founded, and remains Chairman of the Board of Rmax Operating, LLC, which manufactures rigid isocyanurate insulation. Rmax currently has plants in Dallas, Texas; Greenville, South Carolina; and Reno, Nevada. Its products include residential wall and roof insulation, and commercial roof insulation, as well as other specialty products.
In 1983, he formed Hart Group, a diversified group of companies involved in insulation manufacturing and investments. Subsequently, Hart Group Inc. was founded in 1988.
In addition to being Chairman of the Board of Hart Group, Inc. and Rmax Operating, LLC, Mr. Hart serves/has served on the following outside boards - The Home Depot, Inc. (one of the original founders; retired from Board in 2008 after 30 years of service); Docucorp International; Southern Methodist University; Duke University, Trustee Emeritus, Sanford Institute Board of Visitors. Terry Sanford Institute of Public Policy and Hart Leadership Program benefactor (endowed this undergraduate program in 1986); and the Baylor Health Care System Foundation Board.