Yacht builders of Italy and the NetherlandsFor RMK Yachts · teams on LinkedIn, 21 October 2026

Mercury Yacht Construction

Netherlands · ZwijndrechtGrade B39 of 40

Oceanco's wholly owned hull builder in Zwijndrecht, building steel hulls for 80 m-plus yachts in a 204 m hall on the former Heerema yard.

2020
Founded
Oceanco Group, 100%
Owner
inside Oceanco
Revenue
144,000 m2 · 204 m hall
Site
Steel hulls, 80 m and above
Product
General manager from Royal Huisman and IHC
Head

What happened, 2023 to 2026

  1. Aug 2025OwnerOceanco, and with it Mercury, bought by Gabe Newell
  2. Sep 2025BuildSecond 13,400 m2 complex bought next door
  3. Sep 2026Top seatNew general manager, from Royal Huisman operations and Royal IHC

What it adds up to. The hull plant of a yacht group, run like a steel-construction yard by people from dredger building and offshore fabrication.

Who runs it

  1. General Managersince 2026
  2. Manager Productionsince 2023
  3. Manager Operationssince 2026
  4. Manager engineeringsince 2024

Organisation. Hull plant: general manager, operations, production, engineering

What it shows for a new yard. The model for the hull-building half of a greenfield yard: general manager, operations, production, engineering, planning.

Former leaders now elsewhere1 people who held a top or senior seat here

  1. now Manager Engineering at Vitters Shipyard

The top team as read on LinkedIn37 people read as staff, October 2026

A General Manager (Sep 2026, from Royal Huisman and IHC operations) over a Manager Operations (Sep 2026, from Heerema), Manager Production (2023, from Oceanco), Manager Engineering (2024, from IHC), planning office manager, production leaders per workshop, lead engineers; staffed heavily from Royal IHC and the Zwijnenburg yard it replaced.

Mercury is Oceanco's hull and superstructure subsidiary, 40 people on LinkedIn, organised as a steel-construction plant: general manager, operations, production, engineering, planning. Its leaders come from dredger-building (IHC) and offshore fabrication (Heerema), not from yachting. The most 'shipbuilding' organisation on the list, and the model for the hull-building half of a yard like Yalova.

Top seat
Senior layer · 3

Engineering and design 1

Production and operations 2

Managers · 9

Engineering and design 2

Production and operations 6

Purchasing and supply chain 1

24 more people read as staff below manager level: see them in the directory.

Seats and dates are as the people describe them on LinkedIn; a person who moved in the last months can still show the old seat. Tap a person for the profile and the reading.

Candidates at Mercury Yacht Construction1 in the pools; the shortlisted first, then by tier and score

Hans de Lang

General Manager at Mercury Yacht Construction BV (an Oceanco Company) · Papendrecht, Netherlands
COO / technicalPossible matchAt Mercury Yacht Construction
80of 200
* Commercial leadership30%No evidence in the profile.
* Yacht network20%No evidence in the profile.
* Technical and pricing20%General Manager Royal IHC Interior; General Manager Piping @ Royal IHC
* Business building20%General Manager @ Mercury Yacht Construction (Sep 2026 – Present)
Leadership maturity10%Production and operations management at IHC and Royal Huisman

Reading. General manager since Sep 2026; Royal Huisman operational and refit manager, Royal IHC general manager of interior and piping units and production manager; automotive engineer. A production general manager for Oceanco's hull subsidiary.

Career

  • General Manager · Mercury Yacht Construction BV (an Oceanco Company) Sep 2026 – Present
  • Project Manager · Straatman Mooring Systems Jan 2026 – Present
  • Manager Operations · Straatman Mooring Systems Mar 2026 – Sep 2026
  • Operational manager · Royal Huisman Sep 2024 – Jan 2026
  • Refit Manager · Royal Huisman Mar 2023 – Jan 2026
  • General Manager Royal IHC Interior · Royal IHC Jun 2021 – Mar 2023
  • General Manager Piping · Royal IHC Nov 2019 – Mar 2023
  • Manager Production · Royal IHC Mar 2013 – Jun 2021

and 5 earlier roles

Education

HTS Autotechniek Apeldoorn B.sc · Automotive engineering; Moller instituut Hogeschool Tilburg Sience & Chemistry; Titus Brandsma college Havo · secundairy school

LinkedIn profile ·

Facts and news, with sourcesthe research behind the overview

Show the facts and the dated news with their sources

Identity

  • Full name: Mercury Yacht Construction B.V. ("an Oceanco company"). source
  • Founded: 2020, "to control the primary build process, secure enough capacity, and keep high-quality knowledge in-house.".
  • Headquarters and yard: Noordweg 8, 3336 LH Zwijndrecht, Netherlands, on the former Heerema Fabrication Group yard that Oceanco bought in 2019 (Oceanco press release, 2019-05-20). source 1 source 2
  • Ownership: 100% owned by Oceanco Group ("Mercury is fully owned by Oceanco Group and takes care of building Oceanco's new hulls"). source
    • Ultimate owner: Oceanco was bought by Gabe Newell (Valve co-founder) from the Barwani family in 2025-08. source 1 source 2
  • Sister companies (Oceanco Group): Lateral Naval Architects, Aluship, and Alewijnse (systems integrator, joined 2025-08). source

Size

  • Employees: not found. The company says only that most of the team is relatively young. source
  • Revenue: not found (subsidiary, not published separately).
  • Boat International Global Order Book: not applicable; Mercury builds hulls for Oceanco projects, which are counted under Oceanco.
  • Facilities (company statement, undated page read 2026-10-21): 144,000 m² structural and refit site; construction hall 204 x 50 x 30 m (4 x 35 t overhead cranes, 6 x 8 t semi-gantry cranes); refit hall 132 x 50 x 38 m (2 x 75 t cranes); 400 m quay. source
  • 2025-09: Oceanco bought a second complex at Noordweg 15A, Zwijndrecht (about 13,400 m²); its use was not stated. source

Product

  • What it does: builds steel hulls (casco) of Oceanco superyachts (80 m plus), supports refit construction work for Oceanco Life Cycle Support, and is open to third-party construction work. source
  • Hull materials: high-grade steel. source
  • Series / semi-custom / full-custom: not applicable; it is a structural subcontractor for full-custom Oceanco yachts. No own model lines.
  • Hull flow: hulls are built in Zwijndrecht, then moved about 10 km by water to Oceanco's outfitting yard in Alblasserdam (Oceanco, 2019-05-20). source
  • Notable deliveries 2023 to 2026: no named hull credited to Mercury in public press. Not found.
  • Training: runs "De Vakschool", a paid work-study programme for hull builders and welders (3 days work, 2 days school), with partners Zwijnenburg Shipyards, Bayards Yacht Structures and Scheepswerf Slob. source

Leadership

  • Managing Director: Mark Mieras, as of an undated customer reference page (site footer 2026). source
  • Team listed on the company site, as of 2026-10-21 (page undated): Corné Koorneef (Manager Engineering), Jermain de Wit (Production Coordinator), Coen Lodder (Production Engineer), Stefan van Amelsvoort (Manager Bedrijfsbureau). source
  • Parent CEO: Marcel Onkenhout, Oceanco CEO, as of 2025-08 (quoted on the Alewijnse deal). source

News 2023 to 2026

  1. 2025-09

    Oceanco buys a further 13,400 m² complex at Noordweg 15A in Zwijndrecht, next to Mercury's site.swzmaritime.nl

  2. 2025-08

    Oceanco Group, Mercury's parent, acquires systems integrator Alewijnse; Mercury is named as an existing group company.yachtbuyer.com

  3. 2025-08

    Gabe Newell buys Oceanco (and with it Mercury) from the Barwani family.swzmaritime.nl

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