Mark Doble has been involved in the turf/golf industry for over 35 years. Mr. Doble is a principal in Key Golf Management which provides complete golf course maintenance for several high-end golf facilities in the Southwest. He is also President of Pro-Turf International, Inc., a holding company for several golf and turf related businesses which specialize in turf fertility, golf course related supplies and materials and golf course construction and renovations. Pro-Turf International, Inc. currently employs over 100 dedicated and loyal employees. In addition, Mr. Doble owns and operates an 18 hole Championship golf course in Arizona.

Mr. Doble holds a degree from Michigan State University and pursued advanced studies in International Agribusiness Management at Arizona State University. Mr. Doble was an instructor of Turfgrass Management at Mesa Community College from 1984-1991, a Charter Committeeman for inaugural development of the Sports Turf Managers Association in Arizona and the USA, a featured speaker and panel contributor at several turf related conferences, seminars and trade shows, and a private consultant for several golf and sportsfield facilities in the Southwest.

Mr. Doble has been married for 39 years and has two sons who are actively involved in the business.