This is Seaweed Ltd.

Founded in 2015 by marine biologist Paul O'Connor, This is Seaweed Ltd. is an Irish company that supplies premium, organic seaweed-derived ingredients. The company focuses on harvesting seaweed from the nutrient-rich waters of the Atlantic, processing it using gentle, temperature-controlled methods to preserve its natural health properties. Its portfolio is structured into three primary focus areas: People, which provides superfood-grade ingredients and texturizers for the food and nutraceutical industries; Pets, which offers marine-based additives to support animal nutrition; and Plants, which supplies bio-stimulant extracts for agricultural use. The company emphasizes sustainable sourcing and scientific collaboration, working with business partners to develop tailored, functional, and clean-label solutions from concept to market.

By leveraging the unique nutritional profile of Irish seaweed, the company serves as a supplier to manufacturers seeking high-value, plant-based ingredients for dairy, meat analogs, and dietary products. The business model combines expertise in marine science with an emphasis on transparency and organic certification to meet the growing demand for functional and sustainable food ingredients in Europe and beyond. Originally established as a solo venture based at NovaUCD, the company has grown from selling retail products to serving as a strategic ingredient supplier for the food, pharmaceutical, and agricultural sectors. Partnering with food producers, it provides bespoke formulation support to help companies integrate seaweed extracts into their product lines, addressing consumer interest in healthy, traceable, and environmentally responsible food sources.