Bob Bentz (1959-) is an experienced entrepreneur with expertise in mobile marketing, marketing, sales, advertising, Interactive Voice Response (IVR), pay per call, 900 numbers, telecom, dating services, media, and television. He is the author of Relevance Raises Response: How to Engage and Acquire with Mobile Marketing (2016) and Opportunity is Calling: How to Start Your Own 900 Number (1993). Bentz is the president of Advanced Telecom Services and its brands ATS Mobile and Purplegator. He is also a baseball coach who has coached six players who have gone on to play professionally.