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Robert Henry Diefenbacher Edit Profile

marketing executive

Robert Henry Diefenbacher, American marketing executive. Recipient fellowship Rensselaer Polytech Institute, 1962.


Diefenbacher, Robert Henry was born on August 23, 1937 in Greenport, New York, United States. Son of Paul Lloyd and Vera Estelle (Ruland) Diefenbacher.


Bachelor of Management Engineering, Rensselaer Polytechnic Institute, 1959. Master of Management Engineering, Rensselaer Polytechnic Institute, 1963.


With International Business Machines Corporation Corporation, Armonk, New York, 1963-1973, sales manager, 1974-1978, marketing management, 1979-1981. Product marketing director Decision Data Computer Corporation, Horsham, Pennsylvania, 1982-1984. Sales and marketing director MNEMOS, West Trenton, New Jersey, 1984-1985.

Vice president product and market planning Decision Industries corporation, 1985-1988. Columnist Midrange Systems Magazine, since 1988. President, owner Denbrook Systems Associates, Malvern, Pennsylvania, since 1983.

President, founder Denbrook Printcrafters, Ltd., Exton, since 1988, Denbrook Design Group.


Member advisory board Pennsylvania State University of Technology Development Center, Malvern, 1989-1994. Ruling elder, Presbyterian Church, Paoli, Pennsylvania, since 1966. Republican committeeman, Albany, New York, 1967-1969.

Chairman Friends of the Park, West Whiteland Township, since 1993. Member Central Chester County Chamber of Chamber (board directors 1993-1994, president 1995), Tau Beta Pi.


  • Other Interests

    Sailing, yacht racing, photography.


Married Elizabeth Ann Brubaker, December 27, 1962. Children: Robert Alan, Elizabeth Louise.

Paul Lloyd Diefenbacher

Vera Estelle (Ruland) Diefenbacher

Elizabeth Ann Brubaker

Robert Alan Diefenbacher

Elizabeth Louise Diefenbacher