Meet Our Team

Martech Enterprise was founded by owner and operator Mark Grattafiori. Mark and his experienced team offer unparalleled customer service, attention to detail, and work closely with each client to deliver an on-time and on-budget product. Martech Enterprise has served Grand Rapids, Hart, Montague, Muskegon, Pentwater, Rothbury, Shelby, Whitehall and surrounding areas of Michigan for over 22 years. We invite you to learn more about our team’s experience and urge you to contact us for more information.


Mark Grattafiori

  • Owner/Started business in 1992

  • Over 28 years experience in residential and commercial HVAC sales, design, service and repair.

  • Master Electrician

  • Bachelor’s of Science in HVAC and Refrigeration

  • Associate’s in Applied Science in HVAC, Refrigeration and Installation


Jeff Dykema

  • Joined Martech in 2012 and is our Electrical Project Manager

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  • Jeff has 24 years of experience in electrical installation, maintenance and repair.

  • Jeff is a journeyman electrician


Bryan Anderson

  • Joined in 2007 and is our HVAC Project Manager

  • Fluent in mechanical installation, service and repair for Residential & Commercial

  • Licensed Mechanical Contractor


Lisa Harris

  • Joined Martech in 2013 and is our Office Manager

  • Over 20 years experience in office and customer service duties

  • Focused on customer service and satisfaction


Justin Horton

  • Joined Martech in 2017 and is our Business Sales Manager

  • Over 10 years experience in various management and supervision positions

  • Trained Sales Professional

  • Focused on building and maintaining relationships with homeowners, contractors, and businesses.