1975 Founded Radiant Utama with activities of NDT
1979 Established Supraco for offshore maintenance services
1984 Established Horizon Nusantara Eksplora, JV in geophysical services
1985 Established Radiant Utama Interinsco for Inspection services
1986 Established Robertson, JV in geological services
1988 Started our own onshore drilling operation
1992 Started integrated based management services in BP
1995 Established TAC with Pertamina – Ramok Senabing
1996 Established TAC with Pertamina – Sukatani
1999 Started Guna Mandiri as oil&gas manpower supply to middle east
2002 Awarded ISO 9001 for Radiant drilling & Radiant inspection services
2003 Awarded ISO 9001 for Supraco operation
2003 Nissho Iwai entered into Radiant Utama Interinsco