Thai Subsea Services Ltd. is a dedicated commercial diving and marine support contractor based in Thailand, serving the global maritime logistics and offshore energy sectors. Headquartered in the Chonburi province, the company benefits from strategic proximity to Laem Chabang, the nation’s largest deep-water port, while maintaining the logistical capability to mobilize personnel and equipment to key maritime hubs throughout the region, including Rayong, Koh Si Chang, Phuket, and Songkhla.
The core of the company’s operations revolves around underwater ship husbandry, a critical discipline for maintaining vessel hydrodynamics and operational efficiency. Thai Subsea provides comprehensive hull cleaning services, distinguishing its technical approach through the use of specialized hydraulic brush kart systems. These units are designed to remove marine fouling from the flat bottoms and vertical sides of large commercial vessels, a process that directly correlates to reduced fuel consumption and lower carbon emissions for fleet operators. Beyond hull maintenance, the company executes propeller polishing and essential underwater repairs, such as valve replacements, blanking, and plugging, which allow vessels to address technical issues without the significant downtime associated with unscheduled dry-docking.
A significant portion of Thai Subsea’s portfolio involves high-level underwater inspection and survey work. The firm holds accreditations from major international classification societies—including ABS, Bureau Veritas, DNV, Lloyd’s Register, and ClassNK—enabling it to conduct approved In-Water Surveys (IWS) on behalf of vessel owners and insurers. These inspections are vital for assessing structural integrity and ensuring regulatory compliance. Furthermore, the company addresses increasingly stringent international environmental regulations by offering biofouling management services that align with specific biosecurity entry requirements for strict jurisdictions such as Australia and New Zealand.
The operational workforce consists of certified commercial divers and technical staff who employ surface-supplied diving equipment to execute complex subsea tasks safely. Their expertise extends to non-destructive testing (NDT) and underwater welding, supporting both routine shipping operations and offshore infrastructure, such as Single Point Mooring (SPM) maintenance. By integrating technical diving capabilities with maritime engineering standards, Thai Subsea functions as a key support entity within the Southeast Asian maritime corridor, facilitating the continuous movement of global tonnage through the region’s busy waterways.
