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$1,385.75M Raised in 39 Funding Rounds in the past 7 Days - View All

Funding Round Profile

PolyGone Systems Inc

start up
United States - Kearny, New Jersey
  • 20/02/2026
  • Seed
  • $4,000,000

Founded in 2021 by Forbes 30 Under 30 Fellows Nathaniel Banks and Yidian Liu, PolyGone is a cleantech startup building the world's first scalable solutions to combat microplastic pollution.

Microplastics, classified as plastics smaller than 5mm in size are everywhere, identified in over 90 percent of drinking water sources, every ocean, and now within human bodily tissues. With microplastics containing chemicals that are endocrine disrupting, neurotoxic, and carcinogenic, they pose a growing health concern for both aquatic wildlife and humans if left unmanaged.

To address this emerging contaminant, PolyGone develops novel treatment and monitoring solutions, designed specifically to combat microplastics. Our core technology is a proprietary filter media that can capture up to 98 percent of sub mm microplastics in gravity flow, which can be applied to filter microplastics at scale in industrial and municipal infrastructure. Additionally, PolyGone offers comprehensive and state of the art water sample analysis, to equip utilities, companies, and communities with accurate data on their exposure to microplastic contamination.


Related People

Nathaniel BanksCo Founder

Nathaniel Banks United States - Kearny, New Jersey

Nathaniel Banks is the co-founder and CTO of PolyGone Systems Inc. He holds a Master’s degree in Architecture from Princeton University and a Bachelor’s degree is Architecture from Syracuse University. He is passionate about applying design and representational strategies as a means to both broaden awareness and develop innovative solutions to pressing environmental challenges. His ongoing interdisciplinary collaboration with researchers in the fields of advanced chemistry, hydrological engineering, and environmental policy, has enabled him to design, fabricate, and pilot novel filtration technologies to address the emerging microplastic crisis.

Prior to studying at Princeton, Nathaniel honed his design skills, interning in some of the world’s top design practices, including Heatherwick Studio, Zaha Hadid Architects, and Grant Associates. He has won multiple international awards for his independent design projects including the 2019 SkyHive Award, the 2016 BitTech Mod of the Year Award, and the 2021 TerraViva Living Museum Design Award.

Academically, Nathaniel has also received multiple awards for his research, including the 2018 James A. Britton Memorial Award for Faculty Favorite Thesis, and the 2021 Princeton University Research Day Award for his graduate thesis, which ranked top across all academic departments. Nathaniel and his team at Project Plastic Inc have since won multiple research and innovation awards from Princeton University, the NJ state, the National Science Foundation, and have successfully raised their first venture capital investment. His work has also been exhibited in the IHA Gallery in Tokyo, and will feature in the 2022 Shenzhen Biennale.