| 1952 | Camp Albrecht Acres of the Midwest | |
| 811 | CAMP COURAGEOUS OF IOWA | |
| 2271 | Camp Hertko Hollow | |
| 1988 | Camp Kidz | |
| 1315 | Camp Shalom Inc. | |
| 1134 | CASI (Center for Active Seniors Inc.) | |
| 2180 | CCKMA (Cancer Can Kiss My A**) | |
| 1699 | Center for Alcohol & Drug Services | |
| 925 | Center for Belgian Culture | |
| 1816 | Central Community Circle (CCC) Food Pantry | |
| 1393 | Central DeWitt Community Educational Foundation | |
| 2259 | Central Illinois Girls Hockey Association Inc. NFP | |
| 945 | Chancy Lutheran Church | |
| 2036 | Charity Pro Am of Rockford | |
| 1892 | Charlie's Angels - Cystic Fibrosis Foundation/IA Chapter | |