MacroCycle Technologies Inc.

Established in 2023 by Stwart Peña Feliz and Jan-Georg Rosenboom, and based in Cambridge, US, MacroCycle Technologies operates as upcycling technology company that recycles and manufactures polyethylene terephthalate resin using plastic waste without carbon emissions and with minimal energy process. In January 2025, MacroCycle Technologies raised USD 4 million in seed funding co-led by Clean Energy Ventures, Volta Circle, and Indorama Ventures PCL, with participation from KdT Ventures and NeoTribe Ventures. MacroCycle Technologies specializes in advanced recycling solutions aimed at addressing the persistent challenges associated with plastic waste. The company’s primary product is its proprietary MacroCycle PET and polyester resins, created through a unique upcycling process that utilizes cyclic macromolecules.

This technology allows for the conversion of plastic and polyester waste into virgin-grade materials, significantly reducing energy consumption by 80% compared to traditional recycling methods. The end-use cases for these products encompass a wide range of applications, catering to industries that require sustainable plastic solutions, such as packaging, textiles, and consumer goods. MacroCycle serves a diverse client base across various geographical markets, focusing on regions actively pursuing sustainable practices and circular economy initiatives, including North America and Europe. MacroCycle generates revenue through a business model that involves direct sales of its recycled PET and polyester resins to manufacturers and suppliers in multiple sectors.

The transactions typically occur through B2B partnerships, where clients benefit from high-quality, sustainable materials that meet specific regulatory requirements and sustainability goals.   MacroCycle Technologies plans to utilize the recent USD 4 mn Seed funding to scale its operations and enhance its pilot plant facilities to meet increasing demand for its upcycled PET and polyester resin. The company is focused on launching new products designed for diverse applications in sustainable materials, although specific release dates are not disclosed. Additionally, MacroCycle aims to expand its market presence into Europe and Asia by 2026, targeting manufacturers in industries that prioritize sustainable practices.