Sway

From sea to soil: seaweed-based compostable packaging

Greensboro, United States · Founded 2017 · $7.8M raised

Founded
2017
Business Model
B2B
Total Funding
$7.8M
Last Round
$5.0M SeedJan 2024
Rounds
3

Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.

About

Sway is a California-based material science startup that harnesses the natural polymers found in seaweed to create home-compostable replacements for single-use plastic packaging. Named TIME Best Invention of 2025, Sway's patented TPSea™ products mimic the compelling qualities of plastic while being fully biodegradable. The company embodies circular economy principles: design out waste, keep materials in use, and regenerate natural systems. Sway is scaling seaweed-based polybags and retail bags available through major packaging distributors.

Summary

Sway is a Healthcare company based in Greensboro, United States, founded in 2017. It has raised $7.8M in total across 3 rounds, most recently a $5.0M Seed round in Jan 2024. Investors include Third Nature, Valor Siren Ventures and The Helm.

Tech & App Stack

2 technologies & apps tracked

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Funding History

SeedSeed RoundJan 2024
$5.0M

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Funding: Seed. Amounts, valuations, and investors where available.

Investors

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