The Ocean Toolbox

Seaweeds & Algae - Ocean Startups

557 ocean startups and private companies working on seaweeds & algae across 52 countries.

557
Organizations
52
Countries

Where are seaweeds & algae startups based?

USA (96)France (48)Spain (33)Netherlands (31)Norway (28)United Kingdom (26)Canada (26)Indonesia (26)Australia (23)Portugal (21)

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.

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.

SeaMeGro

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.

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