
APSEZ has built a strong and competitive marine services business through targeted acquisitions, continuous fleet expansion and entry into high-growth maritime markets. The business provides a comprehensive range of services, including towage, pilotage and offshore support for oil and gas assets as well as offshore wind. A versatile fleet of tugs and offshore support vessels supports ports and offshore installations with high reliability and global service standards.
APSEZ’s marine operations operate through three integrated entities: Ocean Sparkle Ltd. (OSL), TAHID and Astro Offshore. OSL serves the domestic market, while TAHID and Astro Offshore operate in international markets.
Additionally, APSEZ operates 47 vessels across its ports.
Ocean Sparkle Ltd. (OSL)

Astro Offshore, based in Dubai, operates offshore vessels that provide essential marine support to global energy and infrastructure sectors. The company serves offshore energy, subsea, marine construction and offshore logistics segments, supporting safe and reliable operations across the value chain. Its presence across the Middle East, South and Southeast Asia, and Africa reflects a strategy to diversify vessel deployment.
APSEZ delivers comprehensive dredging and reclamation solutions for port and harbour construction. Since 2005, the company has built a robust dredging fleet and, with 64 dredgers, ranks among India’s largest dredging operators. APSEZ is also the largest private player in the capital dredging segment. A diverse fleet supports both capital and maintenance dredging at APSEZ ports and for external clients. The company also provides inland dredging to maintain navigable depths on key inland waterways.