Seng Heng Sdn Bhd in one of Sarawak's pioneering providers of integrated marine and engineering services, with a strong focus on the oil and gas industry. Established in 1999 through the initial operations under Seng Heng Speedboat Services, the company began by offering passenger boat transportation, particularly for offshore projects. Over the years, Seng Heng expanded its capabilities by forming subsidiaries – Intrarise Sdn Bhd and Intra Blue Ocean Engineering Sdn Bhd – to broaden its service portfolio and support growing industry demands.

Today, with an experienced in-house team, Seng Heng operates independently without reliance on third-party services, ensuring consistent quality, quicker turnaround times, and greater project control. the company's fleet includes pilot boats, a landing craft, and a standby/survey vessel–strengthening its operational efficiency and competitive edge.

With over two decades of experience, Seng Heng has earned the trust of major clients. Its commitment to excellence, reliability, and innovation continues to position Seng Heng as a key player in Malaysia's marine and offshore services sector.