Sariaatmadja business journey began in 1983, when he founded PT Elang Mahkota Komputer. Initially, this company was a distributor of
Compaq in Indonesia. In 1997, PT Elang Mahkota Komputer changed its name to
PT Elang Mahkota Teknologi (Emtek). On 2 August 2004, Emtek together with
MRA Media established the first local private television station in Jakarta,
O Channel (now
Moji) which focuses its broadcasts in the
Jakarta metropolitan area. In 2005, Emtek acquired
Surya Citra Media through PT Abhimata Mediatama. In 2007, Emtek bought MRA Media's shares, so that O Channel was fully owned by Emtek. On April 17, 2008, Emtek decided to directly control Surya Citra Media. Onn 12 January 2010, Emtek officially listed its initial shares on the
Indonesia Stock Exchange. On 13 May 2011, Emtek officially purchased 27.24% of Indosiar Karya Media (
Indosiar's parent company) shares from PT Prima Visualindo. At the end of the mandatory tender offer, Emtek officially controlled 84.77% of Indosiar. On 23 November 2011, Emtek successfully launched a
subscription television with the Nexmedia, that can be installed with a regular television antenna. However, Nexmedia stopped operating on 1 September 2019, then replaced by
Vidio and Nex Parabola. In recent years, Emtek has also been aggressive in acquiring shares in a number of start-up companies. After establishing the
DANA digital wallet platform, Emtek also controlled 50% of the shares of PT Nusa Satu Inti Artha which manages the DOKU digital wallet platform. Then Emtek also bought 34.88% of the shares of the e-commerce company
Bukalapak. To increase its investment portion in the health industry, in 2020 Emtek acquired 71.88% of the shares of PT Sarana Metropolitan Tbk (SAME), which is the controller of the Omni International Hospital network. This acquisition completes its ownership in the EMC Hospital network. According to
Forbes magazine, in 2021 Sariaatmadja's wealth was estimated to reach US$3.6 billion. This amount has placed him in the ranks of the 10 richest people in Indonesia. In 2018, Forbes also ranked Sariaatmadja as one of the 40 most generous people in Asia. == References ==