Seaweed technology partners — and what each one does with Sirputis
Sirputis builds seaweed technology with a network of farms, research institutes and fabricators in Norway, Sweden, Denmark, the Faroe Islands and Lithuania. A logo is wallpaper; a role is proof — each seaweed technology partner below is listed with its role and, where we built or tested something together, what that was.
Farms give us the operating feedback that shapes every harvester and seeder; research institutes validate processes and co-run EU projects such as Horizon Europe SeaMark; fabrication and programme partners build the machines and deliver funded projects such as the Inopažanga stabilisation system. Together they let us deliver from seeding to finished processing lines.
Seaweed farming & field partners

PurSea
Norwegian kelp farmer and field partner — Sirputis supplied harvest-side equipment for its cultivation lines, and PurSea's operating feedback flows back into the designs.
PurSea partnership page →
Arctic Seaweed
Norwegian grower — a cooperation and IP agreement (2022) on harvesting technology: the groundwork for the water-jet harvester patented in 2025.
Arctic Seaweed website →
Pure Algae
Land-based modular algae cultivation partner (Denmark) — controlled production systems that feed Sirputis processing designs for land-based sites.
Pure Algae website →Ocean Rainforest
Coordinator of Horizon Europe SeaMark (the €10m EU project scaling seaweed farming) — at-sea testing of the Sirputis High-Speed SeaSeeder at up to 3 km of grow line per hour (Faroe Islands).
SeaSeeder field test →Polar Algae
Operating partner in Hammerfest, Norway — Sirputis delivered the wet and dry processing lines at NorSea Polarbase in 2023; expansion stages ordered 2026 and in delivery.
Polar Algae reference plant, Hammerfest →Nordic SeaFarm
Swedish seaweed farm — deck-mounted seeding equipment co-developed and measured on the farm vessel (2023); harvester and conveyor equipment supplied since.
Nordic SeaFarm reference →Seaweed Solutions
Norwegian farm — open-sea trials of the Sirputis twine-seeder prototype (2023) and water-jet harvesting equipment supplied since.
Twine-seeder sea trial (2023) →Research partners

SINTEF
Research partner — Sirputis is delivering a pre-processing pilot line (10–500 kg/h) in 2026 for SINTEF's seaweed research platform.
SINTEF pilot line →
Nofima
Applied research partner in industrial processing of marine biomass; fellow beneficiary in the Horizon Europe SeaMark consortium.
Nofima website →
Møreforsking
Research collaboration on marine biomass utilisation and sustainable technology development.
Møreforsking website →Engineering, fabrication & programme partners
Metal Production
Engineering & fabrication partner in Šiauliai — fabricates the Sirputis lines in stainless steel and co-holds the harvester patent.
Metal Production partnership page →KANDAS
Partner, with beneficiary UAB Metal Production, in the EU-funded (Inopažanga) seaweed-stabilisation-system project. The grant runs 2024–2026; equipment is delivered in 2026 and commissioning is planned to 2027.
KANDAS stabilisation project →SoftSeaWeed
Digital farm-management partner — data-driven cultivation planning that Sirputis equipment plugs into.
SoftSeaWeed partnership page →Sirputis is a member of




From research to processing: a complete seaweed ecosystem
By combining research, engineering and farming, our partner network lets us deliver complete end-to-end solutions — from cultivation to final processing. See what has been built: seaweed processing plant references & funded projects.
Want to partner with Sirputis?
Research groups, farmers, operators and funders: tell us what you are building and where — we reply personally, normally within one business day. Coastal governments and NGOs: start with the coastal programmes.