Blasdell, NY · Founded 2013 · Privately Held (backing)
Manufacturer of material intended to offer high-performance building insulation from recycled corrugated cardboard. CleanFiber is based in Blasdell, NY and was founded in 2013. Its last reported valuation was $68 million in Aug 2024. It has raised $136 million across 14 recorded rounds; the latest was a $6.5 million early-stage round in Sep 2025.
Last reported valuation
$68.0M
Oct 2026
Priced at
—
Total raised
$136.3M
Last round
Early Stage VC
Sep 2025
Cap table — not yet on record
CleanFiber's share-class structure hasn't surfaced in our sources yet. Cap tables are assembled from certificates of incorporation, round filings, and disclosures as they land.
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·The complete investor list: 43 names
·Watch CleanFiber: the Monday email on marks, rounds and moves