Indosat Ooredoo

PT Indosat Tbk. (commonly referred to as Indosat Ooredoo, formerly Indosat) is one of the telecommunications services and networks providers in Indonesia. The company offers communication services for mobile phone users, both for prepaid and postpaid, under the brands, Matrix Ooredoo, Mentari Ooredoo and IM3 Ooredoo. The company also provides other services, which are fixed voice services (including International Direct Dialing/IDD) and Multimedia, Internet, and Data Communication Services/MIDI.

In 2011, Indosat Ooredoo owned 21% of the market share. In 2013, the company had 58.5 million mobile phone subscribers. In 2015, the number of subscribers increased to 68.5 million, or up by 24.7% compared with 54.9 million in 2014.

In February 2013, the Qatar telecommunications company formerly known as Qtel, which owned 65% of Indosat's shares, was rebranded to Ooredoo and planned to also rebrand all its businesses) and subsidiaries in the Middle East, Africa, and Southeast Asia with the same Ooredoo brand identity in 2013 or 2014. Two years later, on November 19, 2015, Indosat finally transformed its identity and logo into the Indosat Ooredoo brand.