Sinar Inti Indoraya Group


PT. Sinar Inti Electrindo Raya

PT. Sinar inti Electrindo Raya was started in Jakarta, 1979. Soon, in 1984, the company was officially established. Located in a 10,000 square meters area, SIER has the strong commitment to maximize the quality of the product and services which completed by the sophisticated equipment and technology.

A full dedication and commitment journey to the quality of the product and service in all business lines has brought SIER rapidly grown and decided to form the incorporated in 1984. Soon after the achievement, the strong and powerful management team has decided to renew, re-enlarge and re-sharpen the vision of the company by concentrating on the strategic role of the technology as the solution to improve the quality of the service.

PT. Prima Contractor Indoraya

Primacon was firstly established in 2000. Anticipating the business improvement prospect, in 2004 the company was legalized under the Deed No. C-06506 HT.01.01.TH.2004 dated March 16th 2004. Starting from the vision of being “Top of Mind” in mechanical and electrical contractor business which is supported by the well experienced management and field team, now PrimaCon has grown rapidly.


Lemova is a vertical transportation brand which produced by PT. SIER. The idea of the business development would include: design, fabrication, installation, and elevator maintenance was seriously tilled in May 2010.

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Our address

Jl Arjuna Selatan Kav 1A. No. 10A - C
Kemanggisan, Jakarta Barat
Indonesia - 11480


Tel :  +62 21 53653203 (Hunting)
Fax :  +62 21 53653204