GTT Communications, Inc. (“GTT”) (NYSE MKT: GTT), the leading global cloud networking provider to multinational enterprises announced today that Bob Burris has joined the GTT leadership team as Senior Vice President of Global Engineering and Operations, supporting GTT’s worldwide network encompassing 55 major metropolitan markets in 26 countries. “Bob brings significant communications industry experience, particularly in building organizations and supporting global infrastructure,” said Rick Calder, President and CEO of GTT. “As we execute our growth strategy, Bob and his Global Engineering and Operations organization will focus on growing the worldwide GTT network and delivering outstanding client support.” Mr. Burris has a long and distinguished career in the communications industry bringing more than 30 years of operational, engineering and technical experience to GTT. Mr. Burris joins GTT from Harris Caprock and earlier in his career he held senior level management positions at Core 180, Arbinet and Cable & Wireless. About GTT GTT operates a global Tier 1 IP network with the most interconnected Ethernet service platform around the world. We provide highly reliable, scalable and secure cloud networking services. Our clients trust us to deliver solutions with simplicity, speed and agility that are unmatched by other network providers. For more information visit GTT www.gtt.net.