Pertamina, Chevron Pacific
Indonesia Power, Paiton Energy
Coca Cola Bottling Indonesia, Sinar Sosro, Oasis,Gudang Garam, Tirta Alam Segar, Tirta Investama,
Indah Kiat Pulp and Paper, Pindo Deli Pulp and Papermills, Pakerin, Kertas Leces
Gunung Raja Paksi, Denso Indonesia, Honda Precision Part Manufacturing, Excel Metal Industry
Wings Surya, Kaltim Nitrate, Trans Pacific Petrochemical Indotama, Petrokimia Gresik, Chandra Asri Petrochemical and Panca Amara Utama
Rekayasa INdustri, Wijaya Karya, Dwi Prima Engineering, Inti Karya Persada Teknik, JGC Indonesia and Suluh Ardhi Engineering