Trondheim company Seaweed Solutions AS breeds seaweed and supplies seeded lines and seed cultures to seaweed farms and kelp-restoration projects. It has had a Portuguese branch in Estoril, Cascais, since at least 2011, registered as Seaweed Energy Solutions AS – Sucursal em Portugal (NIF 980447909). In January 2026 it agreed to merge with SeaForester, a kelp-forest restoration company working in Portugal and Norway, to form SeaForester Group.
Seaweed Solutions AS (org. no. 993 491 780) was incorporated in Trondheim on 2 January 2009 and has 12 employees, according to the Norwegian business register, which lists its activity as aquaculture of kelp and seaweed. The company says it now works only on seaweed seeds and cultures. It sells seeded lines ready for sea farms and seed cultures for direct seeding, in the species Saccharina, Alaria and Laminaria, and runs its own R&D sea farms at Frøya. It says it has delivered more than one million metres of seeded line and has run cultivation research in nine countries. Its chief executive is Jon Funderud.
The Portuguese branch, Seaweed Energy Solutions AS – Sucursal em Portugal (NIF 980447909), still carries the company’s earlier name. It is a permanent representation registered at Rua Melo e Sousa, Bloco 2, Loja 212, in Estoril, Cascais. Its business code is CAE 03210, marine aquaculture, and its registered object is the development and production of bioenergy and other products from algae. Racius shows balance sheets filed from 2011 to 2024, so the branch has been in place for well over a decade.
The January 2026 merger made the Portugal link far more than a registered branch. SeaForester, which restores kelp forests in Portugal and Norway, and Seaweed Solutions signed a definitive agreement to combine as SeaForester Group, with three business lines: seeds and genetics, restoration, and regenerative biomass. The group said its restoration permits target 10,000 hectares, and it launched a capital raise alongside the deal. SeaForester’s chief executive Pål Bakken said the aim was to restore lost kelp forests and build up biomass production at scale. WWF Ventures, an investor in both companies, backed the combination. For Portugal’s blue economy, a Norwegian seed and genetics supplier is now part of the same group as a Portuguese-rooted restoration company.
On 9 January 2026 SeaForester and Seaweed Solutions announced their merger into SeaForester Group and the start of a capital raise, as reported by The Fish Site and WeAreAquaculture.
Sources: Brønnøysund Register Centre (incorporation, address, employees, activity); seaweedsolutions.com and About (products, species, Frøya farms, CEO); The Fish Site and WeAreAquaculture, 9 January 2026 (merger, business lines, quotes); nif.pt and Racius (NIF, address, CAE, object, filings). Fetched 26 October 2026.
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