GTT, a publicly owned company headquartered in the US, was founded in 1998 and employs approximately 3,140 individuals. Functioning as a provider of enterprise and telecoms software, the company operates a global communications network, offering telecommunications services to large, multinational enterprises, carriers, and governments across five continents. Offerings include wide-area networks, Internet services (including Internet transit), voice, and other transport and infrastructure services.
On January 23, 2026, GTT Communications expanded the geographic reach of its global enterprise voice services, adding Japan to the list of countries supported through its SIP-based Envision platform. This strategic move targets multinational enterprises that are standardizing voice communications across regions and transitioning from legacy telephony toward cloud-based collaboration tools.
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