Malmö-based Salt & Fiber secures €300k to turn seagrass into sustainable textile yarns; launches crowdfunding campaign

Salt & Fiber, a Malmö-based ClimateTech startup transforming beach-cast seagrass into sustainable textile yarns, has secured €300k in a pre-Seed investment round. Today, the company is also launching a €45,000 crowdfunding campaign. 

Founded in 2025 by Annika John, the company develops sustainable textiles from seagrass, a natural resource found along coastlines. According to the company, its solution tackles two critical issues. It states that coastal municipalities spend millions removing beach-cast seagrass, then landfill it, releasing methane emissions. 

Meanwhile, conventional textile production is one of the world’s most polluting industries, and European brands are facing growing pressure to reduce supply-chain emissions and comply with sustainability regulations such as CSRD and extended producer responsibility frameworks, while needing local, traceable, low-impact materials. 

By transforming beached seagrass, a material that typically goes unused, into high-quality fibres, Salt & Fiber claims to create an environmentally responsible alternative to conventional textiles.

The company states that its fibres are made from beached seagrass that doesn’t require fresh water, fertilisers, or land. These fibres are entirely plant-based and biodegradable, with no synthetic polymers or microplastic shedding throughout their lifecycle. It claims they are safe for both humans and the environment. 

It further notes that its processing methods exclude harmful chemicals and do not generate toxic by-products. Seagrass fibres are naturally fire-resistant, making them less likely to ignite and can self-extinguish without chemical treatments.

Salt & Fiber reports that its pilot production is in progress and has secured a supply agreement with a Swedish municipality on the country’s southern coast. The company is also part of the Älmhult x IKEA incubator, and is targeting commercialisation between 2027 and 2028. It also plans to donate 5 per cent of proceeds from the crowdfunding campaign to Baltic Sea seagrass restoration, though this initiative is still under discussion.

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