The Ocean Toolbox

Carbon & Climate - Ocean Startups

613 ocean startups and private companies working on carbon & climate across 60 countries.

613
Organizations
60
Countries

Where are carbon & climate startups based?

USA (126)France (47)United Kingdom (42)Netherlands (37)Canada (30)England (27)Australia (26)Germany (25)Singapore (19)Denmark (19)

Carbon & Climate 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.

Yacht Carbon Offset

Wales · Carbon/Climate, Mangroves/Coastal

Yacht Carbon Offset provides carbon offsetting services to superyacht owners, charter companies and marinas, calculating emissions from fuel use and retiring verified carbon credits. Its project portfolio combines renewable energy in developing countries with mangrove blue carbon restoration in Kenya.

Cargill

USA · Aquaculture/Fisheries, Waste/Pollution, Energy/Maritime, Carbon/Climate, Data/Tech, Education/Policy, Generalist

Cargill is a global food and agriculture company that supplies food, ingredients, agricultural solutions and industrial products. It works across global supply chains with farmers, food producers and customers, and advances sustainability, climate, water and community initiatives.

Matorka

Iceland · Aquaculture/Fisheries, Carbon/Climate

Matorka is an Icelandic land-based aquaculture company producing premium Arctic char. It operates a vertically integrated production model focused on responsible seafood production and low-impact farming.

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.

Future Proof Shipping

Netherlands · Energy/Maritime, Carbon/Climate

Future Proof Shipping is a shipping company that provides zero-emissions inland and short-sea marine transportation services and consultancy. It develops and operates hydrogen-powered vessels for cargo transport and supports the transition to zero-emissions shipping.

Floating Solutions Consulting

Australia · Energy/Maritime, Carbon/Climate

Floating Solutions Consulting is an independent Perth-based maritime engineering and naval architecture consultancy. It supports the full marine asset lifecycle - hull integrity, marine assurance, and marine energy and decarbonisation - for the energy, defence, and commercial maritime sectors.

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.

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