Tusass A/S, commonly known as Tusass (formerly Greenland Technical Organization and Tele-Post), is a Greenlandic postal and telecommunications company dating back to 1879. Tusass is the largest telecommunications company in Greenland. The company's headquarters are located in Nuuk. The company is divided into three business areas: Postal service, Commercial and Technology and IT. Tusass manages the top-level domain for Greenland .gl, and owns the sea cable Greenland Connect.