ZwitterCo

ZwitterCo manufactures advanced wastewater treatment and process filtration membranes built with proprietary zwitterionic chemistry that prevents organic fouling, a fundamental limitation of traditional filtration membranes. The company's zwitterionic membranes use nanoscale pores built from self-assembling zwitterionic polymers that attract water molecules instead of allowing organic compounds to stick, stopping 98% of organic molecules and enabling efficient water recycling with dramatically reduced fouling. ZwitterCo offers three membrane product lines: Evolution Membranes for dairy and food processing (sanitary anti-fouling membranes for whey protein concentration, milk protein concentration, skim milk concentration, high-solids applications, and permeate polishing, FDA-compliant with shorter cleaning cycles and reduced chemical, water, and energy requirements), Elevation Membranes for water and wastewater treatment (high-rejection, low-energy BWRO for wastewater polishing and process water treatment, and high-pressure RO for high-recovery applications), and Expedition Membranes for high-strength industrial wastewater (superfiltration membranes engineered for extreme levels of BOD/COD and FOG, enabling treatment and reuse of the toughest wastewater and process streams). The company serves industries including industrial wastewater, landfill leachate, produced water, refineries, food and beverage, brewery and distillery, dairy wastewater, digestate, and downstream bioprocessing, with customers including Solugen, Serpol, ESMIL Process Systems, and Fluid Quip Technologies. Founded in 2018 and headquartered in Woburn, Massachusetts (previously Somerville), ZwitterCo has raised approximately $101.7 million in a Series B round backed by Mann-Hummel, BHP, DCVC, Munich Re, The Heritage Group, Evok Innovations, Burnt Island, HG Ventures, Genoa Ventures, Imagine H2O, Greentown Labs, and others.