- Community Unit School District 303 (630) 513-3030
- St. Charles Business Alliance 630) 443-3967
- Elgin Community College (847) 697-1000
- St. Charles Chamber of Commerce (630) 584-8384
- St. Charles Heritage Center (630) 584-6967
- St. Charles Park District (630) 584-1055
- St. Charles Public Library District (630) 584-0076
