Using nature to solve problems.
Our short story.
In 2014, Gross-Wen Technologies was founded by Dr. Martin Gross and Dr. Zhiyou Wen at Iowa State University while developing GWT’s sustainable RAB™ system to help municipal and industrial clients effectively treat wastewater in more economical and reliable ways.
Since then, GWT has grown into a trusted source for environmentally-friendly wastewater treatment.

Our mission has always been simple.
Since its formation, the mission has been to provide a sustainable algae-based wastewater treatment that is effective, reliable, and economical.
We have reinvented the way pollutants are viewed through our innovative, patented process of recovering nutrients from wastewater with algae and then recycling those nutrient-rich algae into slow-releasing algal-based fertilizer – an additional revenue stream!
Our Team

Dr. Martin Gross
Founder, President, and CEO

Paul Juffer
Chief Financial Officer

Max Gangestad
Chief Operating Officer

Zhiyou Wen
Founder & Technical Expert

Phil Gates
Dir. of Bus. Development

Jon Kallen
Dir. of Special Projects

Paul Simpson
Dir. of Operations

Xuefei Zhao
Technical Expert

Drew Greene
Lab Manager

Luke Anderson
Wastewater Operations Manager

Michael Gross
R&D Operations Manager

Jens Dancer
Process Engineer

Abigail Schulte
Laboratory Technician

Mark Rogers
Operations Technician

Cody Clauer
Operations Technician

Graham Bradbury
Operations Technician

Lisa Galetich
HR Manager

Jade Vuong
Financial Analyst

Kyle Woiwood
CPA, Tax Manager

Jenna Corrin
Senior Accountant
GW Nutrition Team

Anita Norian
President

David Phillips
Vice President and Co-Founder

Laura Wonderling
Research and Development