PT Sarana Menara Nusantara Tbk. (SMN) was established in June 2008 with a primary focus to invest in operating companies that specialize in owning and operating telecommunication towers for wireless operators. SMN's activities are conducted through its subsidiary, PT Profesional Telekomunikasi Indonesia (Protelindo).

Protelindo was established in 2003 and has become the largest independent owner and operator of towers for wireless operators in Indonesia. Protelindo's primary business is leasing space at its multi-tenant tower for all major wireless operators in Indonesia under long term lease agreements. Protelindo owns and operates over 17,400 towers in Indonesia.