Seed · Agritech & Foodtech · Barcelona, Spain · Founded 2023 · 2–10 employees
Poseidona develops protein ingredients from recovered seaweeds and invasive algae, turning coastal biomass and industrial seaweed side‑streams into food-grade functional proteins to nourish people while restoring marine ecosystems. Their proprietary processing (currently being patented) uses enzymatic hydrolysis and tailored enzyme combinations to produce concentrated proteins with improved technofunctional properties for food manufacturers. The company is led by co‑founders Sònia Hurtado (CEO) and Dr. María Cermeño (CSO), both experienced food scientists with backgrounds in alternative proteins and circular upcycling. Poseidona closed an early funding round to advance R&D (a reported €1.1M pre-seed/seed round in March 2024) and has publicly announced further investment tranches and industrial partnerships that have raised its capitalization above €2.5M, signalling early commercial traction and partner interest.([poseidona.eu](https://poseidona.eu/))
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