Meet the Team

Our in-house staff of knowledgeable, dedicated professionals takes pride in providing outstanding, personalized service to our customers and our community. Call us today and become one of our many satisfied customers.

Mark Costis


Suzanne Ferro

Assistant to President

KJay Autullo

Chief Operating Officer

Dia Preston

Chief Financial Officer

David Dumphy

Vice President of Sales

Our Team Over The Years

Always Free Estimates & Proposals

Installation, maintenance, service & repair

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Serviced Customers

Years in Business

Total Customers


From the core of the engine to the controls, we stand by our product with one of the best warranties in the industry. We ensure that our generators are quiet, powerful and reliable – and this can only be done by sourcing the best possible product. Generac Generators are the largest and most reliable source for home, business, and recreational backup generators. We offer competitive sales, installation, and service to ensure that the quality of our guests’ experience is top-tier, no matter the nature of their generator needs. GenerX is proud to have been designated as Generac’s PowerPro Dealer for 6 consecutive years.

Recent Blogs

LIVE Power Outage Tracker

LIVE Power Outage Tracker

Here When You Need Us Most Aside from the GenerX core promise of providing quiet, powerful, and reliable Generac Generators, our favorite way to help people is by being there when you need us most.  One of the many ways we achieve this is by providing 24/7 maintenance...

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Hurricane Facts

Hurricane Facts

According to the NOAA, National Oceanic and Atmospheric Administration, hurricanes are among nature's most powerful and destructive phenomena.  On average, 12 tropical storms, 6 of which become hurricanes, form over the Atlantic Ocean, Caribbean Sea, or Gulf of Mexico...

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Happy Customers

"Mark Costis and the Generx team keep my whole house powered in case of city power outages. They have the greatest service and excellent products. With a full tank of propane (250 gallons) I can run my whole house for at least a week. Thanks Mark! A Generx Generator was a great investment!"


"Irma would've been an even bigger nightmare without our generator--it's officially my new favorite thing, and I'm grateful for the work you're doing in the Tampa Bay area."


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