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PolyGone develops filtration systems and testing services to remove and measure microplastics in water.
Founded in 2021 and based in Princeton, US, PolyGone develops filtration media and systems to capture microplastics in wastewater, rivers, and reservoirs. It also analyzes water samples for USD 349 per sample. In December 2025, it raised USD 1.25 mn from Fyrfly Venture Partners and the New Jersey Economic Development Authority. The company later reported a February 2026 seed round of USD 4 million to deploy municipal systems and expand testing and manufacturing.
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