North American Technician Excellence


Executive Committee

Laura DiFilippo, Chairman
President and Co-Owner
DiFilippo’s Service Company

Kevin Dier, Vice-Chairman
Vice President, Business Development
Johnstone Supply

Kevin Traut, 2nd Vice-Chairman
Director of Education and Training
Isaac Heating & Air Conditioning

Mike Branson, Secretary/ Treasurer
EVP & GM, Air Operations
Rheem Manufacturing Company

John Lanier, Parliamentarian
Chief Operations Officer


Eddie Bluff
Co-Founder, Co-Owner, Partner

Site Seeker

Rhonda Wight
Refrigeration Sales

Mike Hellmann
Director of Sales

Edward McFarlane
VP of Learning and Development
Haller Ent.

Harold Nelson
Technical Support Manager

Quan Nguyen
Vice President/GM
Lennox Residential

Brent Schroeder 
President, Air Conditioning Business
Emerson Climate Technologies

Advisory Council

David McIlwaine, Past Chairman
HVAC Distributors

Wade Mayfield, Past Chairman
Thermal Services

Donald Frendberg, Past Chairman
Phase 3 Insights

Ray Isaac, Past Chairman
Isaac Heating & Air Conditioning, Inc.

Scott Boxer, Past Chairman
Service Experts Heating & Air Conditioning, LLC

Randy Tice, Past Chairman
APR Supply Company

John Garvelink, Past Chairman
Commercial Design Engineers, Ltd.