Norwalk has many different organizations that serve the city in various capacities.
- Stepping Stones Museum for Children - http://www.steppingstonesmuseum.org
- Save the Sound Inc - http://www.ctenvironment.org
- Norwalk YMCA - http://www.norwalkymca.org
- Nature Conservancy - http://www.nature.org
- Juvenile Diabetes Foundation - http://www.jdrf.org
- Fairfield County - SCORE - http://www.scorenorwalk.org
- Norwalk River Rowing Association - http://www.norwalkriverrowing.org
- Norwalk Son's of Italy - http://www.norwalksoi.com
- Norwalk Seaport Association
- Norwalk Tree Alliance