The Ocean Toolbox

Seaweeds & Algae - Ocean Startups

463 ocean startups and private companies working on seaweeds & algae across 51 countries.

463
Organizations
51
Countries

Where are seaweeds & algae startups based?

USA (81)France (44)Netherlands (27)Indonesia (25)Spain (24)Canada (24)Australia (21)United Kingdom (20)Norway (19)Portugal (17)

Seaweeds & Algae Startups

Greenskill Environmental Technology Ltd

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.

Origin by Ocean

Finland · Seaweeds/Algae

Finnish biotech converting harmful algae overgrowth from oceans into sustainable biochemical ingredients for cosmetics, food and packaging industries.

OCEANIUM

Scotland · Seaweeds/Algae

OCEANIUM develops innovative functional seaweed ingredients for food, health, and materials using proprietary biorefinery technology and green chemistry processes.

Bromalgae S.L.

Spain · Seaweeds/Algae, Biosolutions, Waste/Pollution, Carbon/Climate, Energy/Maritime

Bromalgae S.L. is a biotechnology company that develops microalgae-based solutions for pollutant gas reduction and industrial microalgae production. It designs photobioreactors, provides scale-up services, and develops environmental applications such as air purification, CO2 capture, and biomass valorization.

Seamore

Netherlands · Seaweeds/Algae

Seamore is a food company that turns seaweed into everyday foods such as pasta, wraps, chips, and bacon alternatives. It develops consumer products that position sea vegetables as a healthy and sustainable ingredient.

Big Kelp Ltd.

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.

Arborea

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.

Porto Muinos

Spain · Seaweeds/Algae

Porto Muinos is a Spanish family-run company producing seaweed, agar agar, and other sea-based food products. It develops organic dried seaweed and specialty marine foods with a Galician and Atlantic focus.

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