Our Team

Keith E. Riddle, P.E., President


Mr. Riddle joined Riddle – Newman Engineering, Inc. in May 1988, and has served as Principal Engineer, Project Manager and Senior Design Engineer for a variety of projects covering all aspects of Civil Engineering.  Mr. Riddle has been the Engineer of Record for many large Institutional, Commercial, and Residential projects throughout Central Florida.  Most all projects include design and permitting of Stormwater, Water, and Wastewater facilities to serve these developments.  Projects range in size from small stand-alone branch bank facilities to Residential Communities consisting of 1,500 plus single-family residences.  

Robert huntley, senior cadd technician

Mr. Huntley joined Riddle - Newman Engineering in 1994 and is an expert in the Computer Aided Design and Drafting (CADD) field with extensive knowledge of AutoCad.

Nancy ault, administrative assistant

Nancy keeps the office running smooth and professional keeping tabs on all aspects of the company.  The projects would not get completed without her oversight.


Catherine has been running the back office for many years and keeps our records and finances straight.  She is a valuable member of the team.

Richard O. Newman, P.E., (1927-2015) FOUNDER

 As the founder of the firm in 1961, Mr. Newman was a leader and an innovator in the formation of what made Leesburg the heart of Lake County.    His expertise in the Engineering field and his selfless public service is greatly missed.