Garner Underground Inc.

Innovation in instrumentation and controls.

What We Do

The Garner Underground Inc. (GUI) was established in 2014 as the product development arm for its sister companies, EBTRON and GreenTrol Automation.

EBTRON and GreenTrol are leaders in instrumentation and control for today’s rapidly growing HVAC and agricultural markets. GUI will also provide services to customers outside of the EBTRON/GreenTrol family when the proper opportunity arises.

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Product design is typically microprocessor-based with embedded firmware and application software.   Most products have short development time-cycles and our design team handles all aspects of product development from inception to production.

Our Creative Team

We employ experienced and entry-level hardware, firmware and software engineers as well as technical document writers and production engineers.

Our creative team works hard and plays hard. GUI has a “work to live” philosophy and it shows. Our design team has the experience and know-how to create new and innovative products in today’s high tech markets that its sister companies serve.

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A career at GUI

We established GUI in Garner to tap the technical resources of nearby Raleigh and the Research Triangle Park area.

Located in a rural and relaxed setting, GUI is away from the day-to-day bustle and traffic of its nearby neighbors. GUI offers an alternative setting for today’s high-tech design professional and is always looking for new talent to join its design team. GUI offers competitive wages and an excellent benefit program.

GUI’s sister companies, EBTRON and GreenTrol Automation are located near the resort destination of Myrtle Beach, SC. Another sister company, Engineered Sales Corporation (ESC) is located in Rock Hill, SC just south of Charlotte, NC. Career opportunities are often available at these locations as well.

Contact GUI for more information on career opportunities at GUI or any of its sister companies.

CLICK HERE for a list of our current career opportunities.

Contact Us



111 West Main Street, Suite 201 Garner, NC 27529

1-866-260-9040

info@garnerundergroundinc.com