PT Radiant Utama Interinsco Tbk engages in the provision of technical support services to the oil and gas industry. It operates through the following business segments: Operating Support Services, Offshore Support Service, Inspection Services, and Other Services. The Operating Support Services segment covers human resources, repairs and maintenance, vehicle rental, and integrated base management for oil and gas. The Offshore Support Service segment provides services for offshore activities including the operation of a mobile offshore production unit, and local shipping services. The Inspection Services segment offers voluntary inspection, statutory inspection, non-destructive testing services and oil country tubular goods, and environmental survey. The Other Services segment includes construction services, building management services, and others. The company was founded on August 22, 1984 and is headquartered in Jakarta, Indonesia.