Management Team

Donald D. Viar, MBA, CPA (inactive), CSE 

Managing Partner

Don serves as the driving force behind our company's sales, marketing, and operations activities. His experience and strategic vision have transformed EpiOn from a small-town technology company into a national professional services firm. Don has literally worked with more than 500 companies across his career and has been able to study their use of technology, policy, and operational best practices to bring them to bear for EpiOn's clients. Prior to joining EpiOn, Don served as the Retail Controller for Cracker Barrel Old Country Store, as a founder of ConnectedHealth.Net (a $15 million subsidiary of Ernst & Young), as a Senior Consultant for Ernst & Young's Emerging Technologies team, and as a Senior Auditor for Ernst & Young. In these capacities Don frequently served as a trusted advisor to the top executives of multi-billion dollar and Fortune 100 companies. He is a graduate of Tennessee Technological University with a Bachelors of Science in Management Information Systems and a Masters in Business Administration.

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James D. Viar


Jim has more than 35 years of successful entrepreneurial and sales experience across a variety of industries. Jim serves as a highly valuable member of the management team from a motivational and advisory perspective. His sales experience and high personal integrity have a tremendous impact upon our company.

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Aaron L. Riddick, MCSE, CCDA, CCNA, CCSP, A+

Operations Manager 

Aaron serves as the manager of our overall field operations. In addition to his client service duties, he is responsible for the daily direction of our technical staff. Aaron is an expert in advanced networking solutions for large scale networks, advanced network security, and IP telephony solutions. He graduated from Tennessee Technological University with a Bachelors of Science in Electrical Engineering with an emphasis in computer design.