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Closed Loop Partners Investment Portfolio

Closed Loop Partners is a New York–based investment firm that invests in companies and projects aiming to advance a circular economy, with a focus on recycling, sustainable materials, and waste management. The firm deploys venture, growth equity, private equity and project finance capital and operates the Closed Loop Fund and a Center for the Circular Economy to support infrastructure development, research, and industry collaboration.

Companies Invested In

Company Name
Sector
Investment Round Value
Funding Round
Announcement Date
PC:NEUTRNeutreeno
Energy, Climate & Sustainability
$5.00M
Seed Round
Aug 14, 2025
PC:TEM4QTemperPack
Energy, Climate & Sustainability
$10.00M
Investment
Oct 08, 2025