Indosat
Indosat mangrupa salah sahiji pausahaan telekomunikasi di Indonésia.

Produk sareng layanan

Seluler
Matrix (Pasca mayar GSM)
Mentari (Pra mayar GSM)
IM3 (Pra mayar GSM)
Blackberry
Indosat 3.5G Broadband
Star One (Pra jeung  Pasca mayar CDMA)

Telepon teu usik
Lintasarta: Layanan panyadia komunikasi data nanggo kecepatan tinggi sareng layanan integrasi jeung nu mumule layanan jaringan corporate nu gaduh cakupan sa Indonésia Indonésia.
Indosat M2: Salah sahiji nu ngamimitian ngembangkeun layanan multimedia jeung  internet dina cakupan sa Indonésia.
Indosat Corporate: An integrated telecommunications service for corporate that offer solutions: voice, mobile, connectivity and VAS & hosting, to enhance the business operation.
SLI : Layanan sambungan telepon ka luar negeri
 SLI 001 
 SLI 008
VoIP : Layanan sambungan telepon nu béana murah nu ngaliwat sistem protokol internet.
Indosat Flat Call 01016

Anak pausahaan 
PT Aplikanusa Lintasarta
PT Indosat Mega Media 
Indosat Finance Company B. V. (“IFB”) (Non-Operational)
Indosat International Finance Company B. V. (“IIFB”) (Non-Operational)
Indosat Singapore PTE. LTD. (“ISP”)
Acasia Communications SDN. BHD. (“Acasia)
Asean Cableship PTE. LTD (“ACPL”)
ASéaN Telecom Holdings SDN. BHD. (“ATH”)
PT StarOne Mitra Telekomunikasi (“SMT”)

Tingal 
 PT Indosat Mega Media (IndosatM2)
 PT Aplikanusa Lintasarta (Lintasarta)

Loka luar 
 Official site 
 IndosatM2 Website 
 / STT Sell its share in Indosat to Quatar Telecom 

Pausahaan télékomuniasi