Naperville Fencing Club
- Club Logistics and contacts with an events calendar, announcements, forum, surveys and a tournament schedule.
- http://www.napervillefencing.org/

Naperville Diamonds Softball Association
- Girls fast pitch league. Contains events calendar, links, and details on games.
- http://eteamz.active.com/napervillediamonds/index.cfm?

Narked Sharks Scuba Diving Club
- Group of recreational, wreck, cave and technical divers. Member contact list, calendar, meeting minutes, and photos.
- http://www.narkedsharks.org/

Naperville Baseball Association
- Contains schedule, news, history, registration details, and related resources.
- http://eteamz.active.com/NBABaseball/index.cfm?

Steeple Run Stingray Swim Team
- Open to youth ages 6-18. Includes contact information, schedule, practice details, and meet locations.
- http://users.rcn.com/pschuman/srswim/

Naperville Bicycle Club
- Road racing and touring club that features information on its rides and events, maps, and online newsletter.
- http://www.napervillebikeclub.com/

Naperville Gymnastics Club
- Offering recreational and girls competitive gymnastics programs up to Olympic Level. Philosophy, facilities, staff. Located in Naperville.
- http://www.napervillegymnastics.com/

Businessmen's Flying Club
- A non-profit, equity club that meets at the Naper Aero Estates. Contains history, photos, articles, and club related information.
- http://www.flybfc.org

Naperville Invitational Basketball League
- A fantasy basketball league. Includes bylaws, season archive, and contact information.
- http://www.williamt.com/nibl/

Naperville Country Club
- Features over 120 acres for members to enjoy its 18-hole golf course, club house and amenities.
- http://napervillecc.org/

Naperville Central Redhawk Hockey
- High school ice hockey with varsity and junior varsity teams. Includes tryout details, FAQs, schedules and scores, special events, and volunteer opportunities.
- http://www.redhawkhockey.com/

Indoor Summits
- Indoor rock climbing gym offering details of its parties, hours of operation, pricing, and guiding services.
- http://www.indoorsummits.com/