GTT Named Company of the Year in 2017 Leading Lights Awards

McLean, VA, May 18, 2017 GTT Communications, Inc. (NYSE: GTT), the leading global cloud networking provider to multinational clients, announced today that it has been recognized as Company of the Year (Public) in Light Reading’s 2017 Leading Lights Awards.

Now in its thirteenth year, the Leading Lights Awards honor the top companies in the communications industry, across 23 different award categories. The Company of the Year (Public) award recognizes a publicly listed company that stands out from competitors and demonstrates a commitment to growth and innovation. The award win is a testament to GTT’s success in the market, as illustrated by its revenue growth of 41.3% from 2015 to 2016, as well as its recent acquisition of Hibernia Networks.

“GTT is honored to be recognized as Company of the Year,” stated Rick Calder, GTT president and CEO. “We are committed to being the industry’s challenger brand, connecting people and organizations around the world through our expansive global network and comprehensive portfolio of cloud networking services.”

The 2017 Leading Lights Awards were presented on May 15, 2017, as part of Light Reading’s Big Communications Event in Austin, Texas.

About GTT

GTT provides multinationals with a better way to reach the cloud through its suite of cloud networking services, including wide area networking, internet, managed services and voice services. The company’s Tier 1 IP network, ranked in the top five worldwide, connects clients to any location in the world and any application in the cloud. GTT delivers an outstanding client experience by living its core values of simplicity, speed and agility. For more information on how GTT is redefining global communications, please visit www.gtt.net.

GTT Media Inquiries:

Randy Slack

+1-646-254-6905

Randall.slack@gtt.net