CLFoundation Logo White

Research on and solution searches for technologies and business models focused on building the circular economy.


Multirecycling Collection

Capital Landscape Study

Closed Loop Foundation is studying trends, gaps and impacts of financing for recycling infrastructure. We are seeking feedback from investors, municipalities, and private companies now.

Recycled Glass

Glass Study

Closed Loop Foundation studied the ROI of investing in glass clean-up systems at MRFs and found that an investment at a MRF could yield higher value commodities and significant savings for…

Screen Shot 2017 11 16 At 9.39.47 PM

Cleaning the rPET Stream

Closed Loop Fund commissioned a study to identify recycling system interventions that reduce the cost of processing post-consumer PET, compared to producing virgin resin. The study shows how…



CL Foundation is a lead supporter of ReFed, a report determining food waste solutions based on their ability to merge strong economic returns with optimal social and environmental benefit…

Wrapping Plastic Stretch Film Background.

Plastic Film Recycling

CL Foundation partnered with RSE on a national study to understand bottlenecks holding back recycling of post consumer LDPE film and multi-laminate film packaging recycling  and to determine ways the…

Ewaste Study

Used Electronics Recycling

CL Foundation commissioned a report to provide a view of the e-waste landscape within the United States in order to understand types and quantities moving into the waste stream today and in the future…


Screen Shot 2016 10 08 At 12 06 19 Am

Film Recycling: Zzyzx Polymers

Zzyzx is an awardee of the CL Foundation solution search to provide seed capital to support companies driving innovation in film plastic recycling. Zzyzx develops technology making recycled plastic…


Film Recycling: Drought Diet Products

Drought Diet Products is another awardee of the CL Foundation solution search. The irrigation company intends to use post-consumer film plastic feedstock in its irrigation piping products and…

925939225 8859ef3bce B

Food Waste Solution Search Grantees

CL Foundation ran a solution search for food waste innovations for a solution search to provide seed capital to support companies and projects that have the potential to reduce food waste at scale…