Neptune Marine Services Limited is a foreign-owned public company, deriving revenue from the provision of commercial  diving services, subsea engineering, repair and maintenance solutions, and dry underwater welding activities. The company operates in Australia, the United Kingdom, Singapore, Indonesia, Malaysia, Bahrain, and the United States, and is administered by its head office in Welshpool, Western Australia

Neptune Marine Services is listed on the ASX under the code NMS.

The company is a majority-owned subsidiary of MTQ Corporation Limited, a Singapore-based oil & gas equipment manufacturer.

Neptune Marine Services provides engineering and diving services, repair and maintenance solutions, and dry underwater welding activities for the oil and gas, marine and renewable energy industries. The company has operations in South East Asia, the United Kingdom, the United States, the Middle East, and Australia.

Neptune Marine Services divides its operations into the following:

  • Engineering Services: Subsea and pipeline engineering, fabrication, assembly and testing, refurbishment, maintenance, installation, NEPSYS dry underwater welding, and project management.
  • Offshore Services: Commercial diving, inspection, repair and maintenance support, difficult and confined area access via rope access, tension netting and modular platforms, remotely operated vehicles (ROVs), geographical support, project management, subsea pipeline/cable stabilisation and protection, and hydrographic surveying.

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