Tessellis S.p.A. (formerly Tiscali S.p.A.[3]) is an Italian telecommunications company founded in 1998 and based in Cagliari, Sardinia, that provides Internet and telecommunications services in Italy, and, previously had operations in other European nations through its acquisition of many smaller European Internet Service Providers (ISPs) in the late 1990s.

[4] Since 2022, following the Tiscali-Linkem merger, the company has acquired full control of the retail services previously provided by Linkem (now OpNet), including the brand.

This pushed other Italian providers to repeal their fixed subscription fees, thus contributing to making the Internet accessible to the masses in Italy.

In November 1999 Tiscali, Franco Bernabè and Sanpaolo IMI founded Andala, which in 2000 was acquired by Hutchison Whampoa and won the tender for the award of 3G (UMTS) licenses.

[5][8] After announcing it in October 2022, on 19 January 2023 the name of the parent company became Tessellis S.p.A., which will continue to operate under both the commercial brands Tiscali and Linkem.

[9] In October 1999 (during the dot-com bubble), the company went through an initial public offering (IPO) to be traded on the Italian Stock Exchange at a share price of 46 Euros.

[citation needed] In May 2009, its IP/MPLS backbone counted 90 Points of Presence and extended over 17 European countries and across the United States and Hong Kong.

It is located in the area of Sa Illetta, which was once a small island reachable only by boat, between the Cagliari pond and the State Road 195 "Sulcitana", an important artery of Southern Sardinia.