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 18,100 towers in Indonesia.

On March 8, 2010, SMN completed an initial public offering of its shares and is now listed on the Indonesian Stock Exchange (IDX) under the ticker symbol "TOWR".