Ocean Infinity AB is the Gothenburg company of the Ocean Infinity marine-robotics group: registered in 2005, it reported SEK 1.07 billion in turnover and 87 employees for 2024. In October 2024 Portugal’s sea and atmosphere institute IPMA awarded it a €21.76 million contract for the 2025 geophysical and geotechnical survey of the Leixões and Figueira da Foz offshore-wind areas, and the company now has a Portuguese branch in Matosinhos (NIF 980870500).
Ocean Infinity AB was registered in Gothenburg on 21 April 2005 and is based at Sven Källfelts Gata 11 in Västra Frölunda, alongside its sister company Ocean Infinity (Offshore) AB and the Swedish holding company Ocean Infinity Group Holding AB. Its registered purpose covers towing, salvage, sea transport, offshore survey work, shipping and technical consultancy, and its 2024 accounts show turnover of SEK 1,068 million, 87 employees and a loss after financial items of SEK 174 million. The wider Ocean Infinity group, founded in July 2017 and based in Austin, Texas and Southampton, is led by chief executive Oliver Plunkett, who also chairs the Swedish company; it operates autonomous underwater vehicles and the Armada fleet of robotic surface vessels.
In Portugal the company works for the state. On 4 October 2024 the Instituto Português do Mar e da Atmosfera (IPMA) published the award of its survey services for the 2025 geophysical and geotechnical data-collection campaign to Ocean Infinity AB for €21,758,161.52 (TED 599818-2024), in four lots covering geophysics and geotechnics off Leixões and Figueira da Foz. According to IPMA’s project site, the campaign maps the seafloor and sub-seafloor of the two areas in PAER, Portugal’s allocation plan for offshore renewable energy, at ten times the data density of the 2024 exploratory survey: 6,761 km of survey lines off Leixões and 13,723 km off Figueira da Foz, plus grab samples, vibrocores and deep cone-penetration tests at 116 stations off Leixões and 236 off Figueira da Foz. Ocean Infinity used class-78 Armada vessels for the geophysics and class-86 vessels for the geotechnical work, run with skeleton crews, with IPMA’s SEISLAB team following operations in real time at the company’s remote operations centre in Gothenburg. The company has also registered Ocean Infinity AB – Sucursal em Portugal (NIF 980870500) in Matosinhos, the municipality that hosts the port of Leixões, as a permanent representation for subsea inspection services (CAE 71120).
Portugal’s offshore-wind areas cannot be tendered and engineered without detailed seabed data, and the contractor the state chose to collect that data for 2025 was a Gothenburg-registered company that ran the survey from a control centre in Sweden. The IPMA contract puts Swedish marine-survey capacity at the very start of Portugal’s offshore-wind pipeline, and the Matosinhos branch, registered for subsea inspection, gives Ocean Infinity a Portuguese base next to Leixões, one of the two survey areas.
The Portuguese branch’s commercial-register entries date from July and October 2025. For open public contracts in the corridor, see the NorthSouth HQ tenders page; for the policy background, see Portugal’s floating offshore wind auction.
Sources: Swedish company register data via allabolag.se (Ocean Infinity AB, 2024 accounts); nif.pt and racius.com (Portuguese branch); EU Tenders Electronic Daily, notice 599818-2024; IPMA “Technical Studies for OWF” project site (owf.ipma.pt); Wikipedia (Ocean Infinity). Spotted an error? Email miguel@fractio.se.
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