Sway

Sway is a materials science company developing next-generation packaging solutions made from seaweed. The company harnesses naturally occurring polymers found in seaweed to create compostable materials that can replace conventional petroleum-based plastics across consumer goods, retail, and packaging applications.

Founded on the belief that nature already provides many of the solutions needed to address plastic pollution, Sway has built a technology platform that transforms renewable seaweed biomass into flexible, scalable packaging materials. Its products are designed to mimic many of the functional properties of plastic while offering a significantly improved environmental profile.

Sway’s flagship products include compostable polybags and retail bags that can be integrated into existing packaging supply chains. The company works with brands across apparel, personal care, and consumer goods sectors to reduce dependence on fossil-fuel-based plastics while supporting circular economy principles.

Unlike many bioplastics that rely on land-intensive agricultural feedstocks, Sway utilizes seaweed, a rapidly renewable marine resource that requires no freshwater, fertilizer, or arable land to grow. By sourcing materials from ocean ecosystems and designing products that return safely to the environment, Sway aims to create a regenerative materials economy that benefits both people and the planet.

The company has gained recognition from major media outlets and collaborates with brands seeking lower-impact alternatives to traditional packaging materials.