+ Petrochina Madura
+ PLTU 7 Bojonegoro
+ Denki Enginering
+ Chevron Geothermal Salak Ltd. 
+ SPE Petroleum Ltd
+ Indelberg Indonesia Perkasa
+ PT. Caltex Pacific Indonesia    
+ PT. Tanjung Redep Hutani
+ PT. Kiani Lestari
+ PD. Pasar Jaya    
+ PT. ANTAM Tbk.    
+ PT. Indonesia Power Tbk.
+ PT. Yamaha Motor Electronics Indonesia 
+ PT. Adhi Karya
+ PT. Gunanusa Utama Fabricator    
+ PT. Ricobana Abadi
+ PT. Rekind (Rekayasa Industri)
+ KIM (Kawasan Industri Mitrakarawang)
+ PT Waskita Karya
+ PT. Omron Manufacturing Of Indonesia
+ PT. Hitachi Transport System