Unreasonable Fellows

Orianna Bretschger

Founder & CEO at Aquacycl

Orianna is an Unreasonable Fellow. Orianna was part of Unreasonable Impact Americas 2022.
Orianna Bretschger is the CEO and Founder of Aquacycl, a climate technology company providing wastewater treatment as a service that mitigates up to 90% of greenhouse gas emissions relative to conventional approaches. A native of the Southwestern United States, Orianna Bretschger grew up appreciating water issues, and after a career in aerospace and government consulting, she found her way back to water while completing a Ph.D. at the University of Southern California, where she studied how microbes remove pollutants from water and produce electricity - the foundation of Aquacycl technology. Her research has resulted in 34 journal publications, 3 book chapters, and 8 patents.