Developing innovative, functional seaweed ingredients to catalyse the seaweed industry
Notable Achievements
- Raised $15M in equity funding from knowledgeable, mission-aligned investors.
- Generating IP and proprietary claims via clinical trials for OCEAN ACTIVES, their hero product.
- Proven proprietary green technology at scale, a world leader in 'green' seaweed fractionation.
Currently Operating in One Region
Press Mentions

July 22, 2025
The companies using tides, seaweed and sewage to help power the UK's green economy
Companies taking on these challenges need "more time, more capital and more operational complexity than traditional tech or consumer startups," says Daniel Epstein, Founder and CEO of Unreasonable...
Read on Sifted »
May 11, 2025
How Oceanium is creating food, skincare products, and ink from regeneratively farmed seaweed
Oceanium is innovating sustainable food and skincare products using regeneratively farmed seaweed. The company is making significant strides in promoting environmental health while providing...
Read more »
March 26, 2025
Oceanium brings in Benjamin Armenjon as MD for seaweed development
Oceanium has appointed Benjamin Armenjon as Managing Director to spearhead its seaweed development initiatives. This strategic leadership aims to enhance sustainable practices in marine resources,...
Read on The Fish Site »More Ventures in Food & Water
Get the Unreasonable Newsletter
Get monthly updates on Oceanium and all of the other ventures working to solve the world's toughest problems.