- Nalco Chemical Company
Producer of specialty chemicals and services for water and industrial process treatment.
- City of Naperville
Official site of the oldest town in DuPage County with information about schools, libraries, parks, and the community.
- Global Warming International Center
Disseminates information on global warming science and policy, serving governmental and non-governmental organizations, and industries in more than 120 countries.
- DuPage Children's Museum
Contains information about the museum and its programs, and features Aunty Math.
- Naper Settlement
19th century museum village.
- Health Research Institute
Offers research, diagnosis and nutrient therapy of biochemical imbalances associated with behavior, learning disorders, autism, depression and schizophrenia.
- Naperville Park District
- Naperville Public Libraries
Information on the Nichols Library and the Naper Boulevard Library branches.
- Conservation Foundation, The
Preserving open space, improving watersheds, advocating sound environmental policy, and promoting conservation education in Illinois.
- Naperville Ribfest
Fourth of July celebration. Held in Knoch Park, July 2-5, 2003.
- Krueger Realtors
Serving Naperville and Dupage County.
- Naperville Community Unit School District 203
Provides info on all dist. schools, the school board, and relevant information on the district and its community.
- Naperville Township
General information and services.
Manufacturer/distributor of organic chemicals used in microbiology, clinical diagnostics, pharmaceuticals, molecular biology, and immunology for production or research.
- Ed Hoy's International
Stained and art glass supplies.
- Catholic Order of Foresters
Fraternal benefit society that sells annuities, life, long term care and disability insurance.
- AmeriVein Systems
Surgeons specializing in the treatment of vein diseases.
- John Greene Realtors
Serving the western suburbs.
- Summer Place Theatre Inc.
Not-for-profit organization providing live family-oriented theatrical entertainment.