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Enersense Offshore Oy is part of the Enersense Group, a Finnish company providing world class project execution

and steel construction services to a wide range of customers.

Enersense Offshore Oy offers a wide range of specialty services provided with unmatched expertise.

Enersense Offshore Oy offers a wide range of specialty services provided with unmatched expertise.


SPAR Platforms

Pori Yard has proven expertise covering construction of exploration and service rigs including

  • 14 Spar platforms
  • 16 semi-submersible rigs
  • 5 jack-up drilling rigs
  • 3 drill ships
  • Deepwater floating platform for production and drilling with oil / condensate storage options
  • Low motions even in harsh environments – support dry trees, steel catenary risers (SCRs) or flexible risers
  • Unconditionally stable with simple ballast and marine systems
  • Hull fabrication in Pori or locally with Pori supervision (e.g. Kikeh in Malaysia)
  • Topsides installation by heavy lift or by catamaran floatover (e.g. Kikeh)
  • Full drilling or with tender support
  • 14 Spar’s out of the 21 worldwide have been built in Pori

Subsea Products

Delivering critical components to some of the most challenging projects in the Gulf of Mexico and West Africa.

  • Goosenecks
  • Parking structures
  • Pre-Commissioning structures
  • Pig Launcher Receivers
  • Buoyancy cans for free standing hybrid risers
  • Suction piles for manifolds, risers or tethers


Heavy Pressure Vessels

We manufacture heavy pressure vessels and related equipment for the process, gas and power industries.

  • Large storage bullets and spheres for LNG, LPG and CO2 including high quality surface protection
  • High quality, heavy and moderate size reactors, absorbers and HP separators

Windmill Foundations

Pori Yard has engineered and fabricated the sub-structure for Hywind, the world’s first full scale offshore floating wind turbine, off the Norwegian coast.

By adapting our core competencies, we are able to deliver:

  • Sub-structures for deepwater floating wind turbines
  • Foundations for shallow water fixed wind turbines
  • Floating or fixed sub-structures for substation platforms

The name of Pori Offshore Constructions Oy will be changed to Enersense Offshore Oy

December 1, 2021

Enersense International Plc
Press release, 1 December 2021 at 11:00 a.m.

Enersense, which acquired the entire share capital of Pori Offshore Constructions Oy on 4 October, will standardise the legal names of its companies starting on 1 December in Finland as part of the integration and brand renewal of the company.

Due to the change Pori Offshore Constructions Oy’s name will change to Enersense Offshore Oy.

”We believe that the Mäntyluoto shipyard is well positioned to develop and take a major role in offshore wind power and industry projects both domestically and abroad as part of our joint Enersense brand”, states Enersense’s CEO Jussi Holopainen.

At the same time Enersense Group’s old company names starting with Empower will be changed to start with Enersense. The name change will not have an effect on the companies’ business identity codes, they will remain the same.

Enersense has been chosen as a contractor to construct a pontoon for the port of HaminaKotka

October 26, 2021

Enersense International PlcPress release, 25 October 2021 at 3:45 p.m. Pori Offshore Constructions Ltd, which operates in the Smart Industry business area of Enersense International Plc, a provider of zero-emission energy solutions, has signed an agreement with HaminaKotka Satama Oy on the construction of a pontoon. The pontoon will be constructed at Enersense’s site in Mäntyluoto, Pori. The project will be carried out as a lump-sum contract, and it consists of the construction of a pontoon weighing approximately 610 tonnes and a ramp weighing approximately 200 tonnes. The pontoon is specifically designed for loading and unloading operations of ro-ro vessels as an extension for the existing pier. A ro-ro (roll-on/roll-off) vessel refers to a ship on which the loading takes place by…

Enersense acquires the share capital of Pori Offshore Constructions

October 14, 2021

Pori Offshore Constructions is part of the Finnish business delegation supporting Minister Skinnari by offering solutions for green transition.

April 27, 2021



December 23, 2020

The aim of the joint project is to develop competitive concepts for the needs of growing offshore wind power construction and production https://www.businessfinland.fi/ajankohtaista/uutiset/2020/baltic-offshore-wind–hankkeessa-rakennetaan-merituulivoimaan-perustuvaa-paastottoman-energian-ekosysteemia