MCLEAN, Va., December 3, 2019 GTT Communications, Inc. (NYSE: GTT), a leading global cloud networking provider to multinational clients, will attend the UBS Global TMT Conference on December 9 in New York. Management will present at 10 a.m. ET and meet with investors that day.

A webcast of the presentation session and a copy of GTT’s latest investor presentation will be available on the company’s website.

About GTT

GTT connects people across organizations, around the world and to every application in the cloud. Our clients benefit from an outstanding service experience built on our core values of simplicity, speed and agility. GTT owns and operates a global Tier 1 internet network and provides a comprehensive suite of cloud networking services. For more information on GTT (NYSE: GTT), please visit www.gtt.net.

GTT Media Inquiries:

Marion Janic, RooneyPartners

+1-212-223-4017

mjanic@rooneyco.com

GTT Investor Relations:                                                      

Carolyn Capaccio/Jody Burfening, LHA

+1-212-838-3777

ccapaccio@lhai.com

Bob Cavosi, RooneyPartners

+1-646-638-9891

rcavosi@rooneyco.com