Fundraising Fox

PolyGone Systems

Kearny, US · Founded 2022 · Delaware corporation · 9 known investors

Microplastic monitoring and filtration solutions company

Founders & leadership

PolyGone Systems was founded in 2022 by Yidian Liu and Nathaniel Banks.

YL
Yidian LiuCo-founder30 Under 30 2024
NB
Nathaniel BanksCo-founder30 Under 30 2024

Board

JM
Julie MaplesBoard director

Investors · 9

Tech Council VenturesSummit · $500K – $3M
10X CapitalreportedNew York
FYRFLY Venture Partnersreported · 2 sourcesSan Francisco
Golden Seedsreported · 2 sourcesFlushing · $250K – $2M
INTERSTATE FUSION VENTURESreported · 2 sourcesAkron
Lowercarbon CapitalreportedNew York · $100K – $5M
Prelude VenturesreportedSan Francisco · $100K – $5M
Slauson & Co.reportedLos Angeles · $300K
Threshold VenturesreportedPalo Alto · $500K – $20M

Reported raises · per SEC filings

Form D private placements

$2.7M disclosed across 1 round · 2025

▶$2.7MraisedAug 2025 · 4 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Yidian LiuExecutive Officer, Director
  • Julie MaplesDirector
  • Nathaniel BanksExecutive Officer, Director
Offering amount
$4M
Amount sold
$2.7M
First sale
Jul 2025
Incorporated
Corporation, Delaware, 2022
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

In the news

Venture Capital Funding: Onshore, PolyGone Systems, Solid - InfotechLeadinfotechlead.com · Feb 2026PolyGone Systems: Princeton University Spinout Raises $4 Million Seed Round To Scale Microplastic Monitoring And Removalpulse2.com · Feb 2026PolyGone Systems Raises $4M to Scale Microplastic Filter Technology | Founderland | Founderlandfounderland.ai · Feb 2026PolyGone Systems secures US$4mn seed funding to advance microplastics monitoring and filtration - Filtration and Separationfiltsep.com · Feb 2026PolyGone Systems Raises $4M in Seed Fundingfinsmes.com · Feb 2026PolyGone Systems Raises $4M Seed Round to Scale Microplastic Monitoring and Removalbusinesswire.com · Feb 2026

Frequently asked questions

What does PolyGone Systems do?
Microplastic monitoring and filtration solutions company
Who founded PolyGone Systems?
PolyGone Systems was founded by Yidian Liu, Nathaniel Banks in 2022.
Who are PolyGone Systems's investors?
PolyGone Systems's investors include Tech Council Ventures, 10X Capital, FYRFLY Venture Partners, Golden Seeds, INTERSTATE FUSION VENTURES, Lowercarbon Capital, Prelude Ventures, Slauson & Co. and 1 more.
How much funding has PolyGone Systems raised?
PolyGone Systems has disclosed $2.7M raised across 1 round.
Where is PolyGone Systems headquartered?
PolyGone Systems is headquartered in Kearny, US.