Usa-Places.com has listed approx 17 Non-profit organizations in Manitowoc. Some of the Top rated Non-profit organizations in Manitowoc are- Manitowoc-Calumet Library System, Lakeshore FIRST Robotics, Treehouse Theater, Grow It Forward Inc., Ascend Services Inc., Lakeshore Child Care Center, Valley View Apartments Senior Services, Lakeshore Family Resources, West Foundation Inc & Devin Strong.