/Investor DB

Closed Loop Partners — 2022 Investments

4 investments dated 2022 · listed companies and verified rows first · show all

Acelfilacelfil.cominJul 2022

Acelfil develops industrial filtration systems designed to handle variable and spiking suspended-solids loads without manual operator intervention, aiming to reduce equipment shutdowns and downstream membrane damage.

Advanced ManufacturingCleantechHardware

Co-investorsID VenturesMichigan Capital NetworkMichigan RiseAnthropocene Ventures

By Rotationbyrotation.comSeed · Apr 2022 · $3M

By Rotation is a fashion rental platform that allows consumers to rent designer clothing and lend or monetize their own wardrobes.

Circular EconomyConsumerMarketplaces

Eshita Kabra(Founder)inEshita Kabra-Davies(Founder)

Co-investorsCornerstone VCRedrice VenturesSie VenturesTrue.Cherry VenturesTrue Global Ventures

GreyParrotgreyparrot.aiin𝕏Series A · May 2022 · $11M

Greyparrot provides AI-powered visual analytics for material recovery facilities (MRFs) to optimize throughput, capture residue valuables, protect output purity, and reduce manual sampling labor.

AI & Machine LearningCircular EconomyCleantechData & InfrastructureImpact & Social GoodIoTLondon, GB

Mikela Druckman(Founder)inAmbarish Mitra(Founder)inMarco Pontini(Founder)

Co-investors360 CapitalKickstart InnovationPlug and Play VenturesRegeneration.VCSpeedinvestUna Terra

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Accelerated Filtration

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.