- Western Illinois University (22)
- Sheaffer Pen Corporation (1)
- Midstate College
Accredited two year college with career-oriented educational programs in the fields of business, law, tourism, and medicine.
- World Free Fall Convention
Annual skydiving convention, offers event, location, travel, contact, and volunteer information.
- Your Electronic Warehouse
Offers home theater and car audio systems, DVD players, and more.
- Harpole's Heartland Lodge
Deer, pheasant, quail hunting outfitter and lodge located in Pike County, Illinois. Also includes a resort and a conference and retreat center.
Sells candles, collectibles, chocolates, and more. Stores located throughout the Midwest.
- Quincy Gems
Official site of the Quincy Gems Prospect League baseball team.
- Heintz Electric Company
Electrical wholesale distributor.
- Hannibal Cavemen
Official site of the Hannibal Cavemen Prospect League team.
- Ursa Major Corporation
Offers maps and basketball court stencils for playgrounds, and luminescent constellation stencils for indoors. Also features an online color printing service.
- Keokuk Area Medical Equipment and Supply
Provides supplies for rehab, respiratory, and home care. Also offers a pharmacy.
- Electronic Systems & Solutions, Inc.
- Women's Basketball (3)