Sirputis
Where engineering meets seaweed
Sirputis launched on April 20, 2026 with 71 votes, #746 of 21,248 launches that month and more than 95% of that year's launches.
What it does
Sirputis builds engineering solutions for sustainable seaweed cultivation, harvesting, and processing.
We design and build seaweed processing equipment and modular biorefineries — from single screw presses to complete Arctic-proven 6,000 t/y plants.
Hammerfest, Norway · 70.6° north · delivered by Sirputis Complete processing lines and modular biorefineries — engineered in Lithuania, commissioned where the seaweed is. Washing, pressing, drying, extraction. From single machines to full plants. Development funder or coastal government? See the Coastal Community Programme → Fresh seaweed degrades within 24–48 hours. Our seeding machines and harvest-side equipment — commercially tested in the EU SeaMark project — are built for that clock. Receival, washing and de-sanding, pressing, drying, milling, extraction — containerised, pre-integrated, commissioned by our own engineers. Each module…from sirputis.com
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