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About HSM Offshore Energy
Company Overview
Name
HSM Offshore Energy (privately owned, acquired by management and Gilde Investment in 2021) (source: hsmoffshoreenergy.com)
HeadquartersSchiedam, Netherlands
Founded2009
SizeApproximately 150 employees in recent years (source: linkedin.com). Annual revenue exceeding €250 million (source: hsmoffshoreenergy.com)
What They Do
HSM Offshore Energy is a specialized offshore energy contractor based in Schiedam delivering EPCIC projects focused on offshore wind, offshore high-voltage substations, offshore gas, green hydrogen, and carbon capture infrastructure (source: hsmoffshoreenergy.com, hsmoffshoreenergy.com). The company has a long history in steel fabrication and began offshore activities in 1973, operating under the name HSM Offshore Energy since 2009 (source: hsmoffshoreenergy.com). Their core activities include engineering, procurement, construction, installation, and commissioning of multidisciplinary offshore projects, with a strong focus on offshore high-voltage AC substations and their steel jacket foundations, offshore green hydrogen platforms, offshore gas production and processing modules, and carbon capture and storage infrastructure (source: hsmoffshoreenergy.com). HSM positions itself as an integrated fabrication and integration contractor managing the full scope from engineering to commissioning, including project management, physical assembly, offshore transport, and installation (source: hsmoffshoreenergy.com). A distinctive feature is their extensive experience in offshore fabrication and jacket foundations, combined with a leading role in manufacturing offshore high-voltage substations for wind farms (source: hsmoffshoreenergy.com). Additionally, they develop scalable offshore green hydrogen production platforms ranging from 50 MW to over 400 MW in collaboration with H2SEA (source: hsmoffshoreenergy.com).
Projects & Experience
In 2024, HSM Offshore Energy rolled out the THOR offshore high-voltage substation topside and lifted GIS modules for RWE Renewables at their Schiedam yard, a contract awarded in 2022 that included the EPCIC delivery of the offshore substation and jacket foundation (source: hsmoffshoreenergy.com, hsmoffshoreenergy.com). In April 2025, HSM was awarded an EPCIC contract by ScottishPower Renewables for the East Anglia TWO offshore substation and jacket foundation, a 960 MW wind farm off the Suffolk coast featuring a 5,100-ton offshore high-voltage substation and a 3,700-ton jacket foundation (source: hsmoffshoreenergy.com). The Jasmund Offshore Substation project continued in 2025 through the HSI joint venture, consisting of HSM Offshore Energy, Smulders, and Iv, relocating the topside and transformers for 50Hertz at the Stormpolder yard, linked to the Windanker wind farm in the Baltic Sea (source: hsmoffshoreenergy.com). In 2024, HSM also rolled out the N05-A topside for ONE-Dyas in Schiedam; this platform will be the first electrified gas production platform in the North Sea, powered by offshore renewable energy from the nearby Riffgat wind farm (source: hsmoffshoreenergy.com). Historically, the company has delivered over 150 offshore platforms, modules, and jackets within upstream energy, gas, and offshore wind infrastructure (source: hsmoffshoreenergy.com, linkedin.com).
Recent Developments
In November 2023, HSM Offshore Energy introduced a new brand identity to reflect the evolving offshore energy mix (source: hsmoffshoreenergy.com). In April 2024, the company began steel processing for the THOR project in Schiedam for RWE (source: hsmoffshoreenergy.com) and rolled out the N05-A topside for ONE-Dyas (source: hsmoffshoreenergy.com). In November 2024, the THOR OHVS topside was rolled out and GIS modules lifted for RWE Renewables (source: hsmoffshoreenergy.com). In March 2025, the Jasmund Offshore Substation topside and transformers were relocated at the Stormpolder yard for 50Hertz (source: hsmoffshoreenergy.com). In April 2025, HSM was awarded the East Anglia TWO contract by ScottishPower Renewables (source: hsmoffshoreenergy.com).
Careers at HSM Offshore Energy
HSM Offshore Energy offers various roles in engineering, project management, construction, and yard operations, with vacancies such as Project Engineer and Supervisor in Schiedam (source: hsmoffshoreenergy.com, hsmoffshoreenergy.com). The organization includes departments for engineering, procurement, project control, fabrication, logistics, installation, commissioning, commercial development, and HSE, reflecting the integrated EPCIC approach (source: hsmoffshoreenergy.com, hsmoffshoreenergy.com). Additionally, the company has an office in Houston, Texas, indicating commercial and business development activities focused on the US offshore wind market (source: hsmoffshoreenergy.com). The company culture emphasizes technological excellence and multidisciplinary execution of large-scale offshore infrastructure projects, with a strong focus on industrial execution at the Schiedam yard (source: hsmoffshoreenergy.com, hsmoffshoreenergy.com).
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