Tersan Shipyard Proudly Delivers Acta Hercules to Acta Marine

Following the delivery of Acta Pegasus in December 2025, Acta Hercules continues the series with enhanced offshore capabilities and sustainable design features. Built at Tersan Shipyard’s Yalova premises, the vessel accommodates up to 135 persons and is equipped with advanced offshore access and lifting systems, including a 3D motion-compensated SMST gangway and crane.

In line with Acta Marine’s sustainability ambitions, Acta Hercules is delivered methanol-ready, supporting the transition toward lower-emission offshore operations.

Built on Ulstein’s advanced twin X-STERN hull design, Acta Hercules ensures reduced pitching, enhanced operability, and optimal performance in challenging weather conditions. With dual-fuel engines capable of operating on marine gas oil or methanol blends, combined with substantial Battery Energy Storage capacity, the vessel is designed for efficiency and sustainability.

Mehmet Gazioğlu, CEO of Tersan Shipyard, stated: “Delivering Acta Hercules right after Pegasus demonstrates the strength of our collaboration with Acta Marine and our ability to build complex offshore

vessels to the highest international standards. We are proud to contribute to Europe’s energy transition with our shipbuilding expertise in cooperation with Acta Marine.”

Designed with crew wellbeing at its core, Acta Hercules offers 88 high-comfort cabins, modern amenities, multifunctional lounges, gyms, sauna, and smart connectivity throughout.

Rob Boer, CEO of Acta Marine, commented: “The delivery of Acta Hercules marks an important step in the expansion of our next-generation fleet. The vessel reflects our continued commitment to delivering reliable, high-quality offshore support services to our clients in the offshore wind sector. We appreciate the efforts and craftsmanship of Tersan Shipyard and all partners involved in bringing this vessel to completion. We look forward to continuing our cooperation on the remaining vessels in the series and to welcoming Acta Gemini and Acta Aquarius to the fleet in line with planned schedule.”

The remaining two vessels of the series, Acta Gemini and Acta Aquarius, are scheduled for delivery later in 2026. This four-vessel program represents Acta Marine’s continued investment in a modern, sustainable, and future-ready fleet.

About Tersan Shipyard

Tersan Shipyard is one of Turkey’s largest newbuild shipyards, employing more than 4.500 people across three facilities, located in Istanbul and Yalova, Turkey and Leirvik, Norway. With a proven track record of delivering over 150 vessels, Tersan specializes in the construction of technologically advanced offshore, fishing and various other types of vessels for international clients, predominantly in Northern Europe.

Tersan has extensive experience in building of alternative-fueled and battery-powered vessels as well as a wide range of high value-added niche vessels of diverse types and sizes. Tersan has been recognized as the export leader of Turkey in new shipbuilding sector for ten of the past twelve years.

About Acta Marine

Acta Marine is a leading provider of Walk to Work (W2W) and offshore support vessel solutions for the Offshore Wind, Oil & Gas, and Marine Infrastructure sectors. With a modern and specialized fleet, Acta Marine is committed to providing safe, reliable, and efficient services to its clients worldwide. The company is headquartered in Rotterdam and has operational offices in France and the UK.