Gross-Wen Technologies builds algae-based wastewater treatment systems using a patented revolving algae biofilm (RAB) technology to recover nitrogen and phosphorus from wastewater. The system allows municipalities and industries to retrofit existing treatment plants to address nutrient management economically and sustainably. During treatment the algae consume CO2 and the resulting algae biomass is sold as a slow-release algal fertilizer or used for bioplastic. The company’s technology was developed at Iowa State University and was founded by Dr. Martin Gross and Dr. Zhiyou Wen. Gross-Wen is based in Slater, Iowa. The company raised a $6.5M Series A to accelerate growth in Iowa and expand operations and business reach.

Total raised

$7M

Funding rounds

1

Latest round

Series A

Latest activity

Aug 2021