Alkonusa, also known as ATI, is a certified mechanical, electrical, electronic, plumbing, and HVAC (MEP-HVAC) contractor, registered with a level 4 qualification.

Our headquarters are located in Surabaya, with branch offices in Jakarta and Denpasar. We also have project offices in Makassar, Yogyakarta, Batu, Sidoarjo, Bogor, and Bandung.