Tusass (formerly Tele-Post) is a Greenlandic postal and telecommunications company dating back to 1879.

The company is divided into three business areas: postal (mail), commercial and IT services.

After the merger, Kalaallit Allakkeriviat became a business unit and was renamed as POST Greenland.

[11] In December 2019 it was announced that Tusass had chosen Ericsson to build a 5G network in Greenland.

A ground station in Tasiilaq was completed in 2020 offering for the first time flat-rate broadband to the town.

[21] Mobile broadband based on 5G Non-Standalone (NSA) Fixed Wireless Access (FWA) launched in three cities in October 2022, offering 80 Mbit/s as the top speed.

[22] In 2023 Tusass switched to a new Hispasat satellite called Amazonas Nexus (Tusass refers to it as GreenSAT), to be used for flat-rate Internet for remote farms and for the most-northern town of Qaanaaq where a new ground station has been built.