396 ocean startups and private companies working on biosolutions across 53 countries.
Scotland · Seaweeds/Algae, Biosolutions, Waste/Pollution, Carbon/Climate, Data/Tech
Greenskill Environmental Technology Ltd develops microalgae-based photobioreactor technologies for carbon capture, wastewater treatment, and the conversion of emissions and wastewater into valuable products. The company combines biological process engineering, renewable energy integration, and cloud-based control systems to deliver carbon-negative industrial solutions.
United Kingdom · Seaweeds/Algae, Carbon/Climate, Waste/Pollution, Biosolutions, Aquaculture/Fisheries
Big Kelp Ltd. develops kelp-based solutions to address climate change, ocean health, plastic waste, pollution, and livestock methane emissions. It focuses on large-scale kelp cultivation and kelp-derived raw materials and supplements.
Switzerland · Aquaculture/Fisheries, Corals/Biodiversity, Biosolutions
LAGOSTA is a private company focused on spiny lobster aquaculture, marine biodiversity conservation, and marine biotechnology. It develops biomedical-grade chitosan from natural waste and cultivates spiny lobsters in a fully controlled environment.
United Kingdom · Seaweeds/Algae, Carbon/Climate, Biosolutions
Arborea is a private company developing microalgae-based ingredients and proteins using its Biosolar Leaf™ cultivation system. It captures CO2 and sunlight to produce net-zero food, feed, cosmetic and agricultural ingredients without fertile land.
Ireland · Seaweeds/Algae, Biosolutions, Carbon/Climate
SeaMeGro develops seaweed-based biofertilizers and microbial agricultural inputs that improve soil health, crop productivity, water quality, and carbon outcomes. It uses sustainably harvested seaweed and biological formulations to replace synthetic fertilizers and pesticides.
Mexico · Seaweeds/Algae, Biosolutions, Carbon/Climate
RubisCO2 develops modular pyrolysis technology that converts sargassum and algae waste into biochar for carbon dioxide removal. It works with Caribbean communities to turn invasive algae into climate-focused products and future carbon credits.
Tunisia · Biosolutions
Chitelix transforms seafood processing byproducts into chitosan and high-value bio-ingredients for agriculture, industry, and environmental applications through circular economy principles.
Norway · Seaweeds/Algae, Biosolutions
Algea is a Norwegian company that harvests and processes Arctic seaweed, especially Ascophyllum nodosum, into extracts and phytocomplexes for agriculture and animal feed. It develops seaweed-based raw materials and nutrition solutions with a focus on scientific innovation and sustainable harvesting.