| Other organizations in Illinois |
| Id | Name | Address | State | Established | Total Income |
| 1 | Civil Air Patrol, Group 19 Hq | PO BOX 25436, Scott Afb, IL 62225-0436 | IL | 1947-08 | $0 |
| 2 | Civil Air Patrol, Octave Chanute Sqdn | 309 1/2 W Columbia Ave, Champaign, IL 61820-3504 | IL | 1947-08 | $0 |
| 3 | Civitan International, 26-1033 Lawrenceville | 2205 Devonshire Dr, Lawrenceville, IL 62439-1826 | IL | 2006-01 | $0 |
| 4 | Clinton Girls Basketball Association | Po Box 298, Clinton, IL 61727 | IL | 2007-11 | $0 |
| 5 | Clinton Power Station Wellness Club | PO BOX 678, Clinton, IL 61727-0678 | IL | 1993-01 | $0 |
| 6 | Clio Institute | 4938 N Mozart St No 2, Chicago, IL 60625-3614 | IL | 1995-01 | $0 |
| 7 | Cmc School District 10 Foundation | 27 Fox Mill Drive, Maryville, IL 62062 | IL | 2005-06 | $0 |
| 8 | Coalition Of The Chicago American Indian Community | 1630 W Wilson Ave, Chicago, IL 60640-5418 | IL | 2004-09 | $0 |
| 9 | College Bound Outreach | 4509 Odessa Dr, Matteson, IL 60443 | IL | 2005-01 | $0 |
| 10 | College Church In Wheaton | 332 E Seminary Ave, Wheaton, IL 60187-5311 | IL | 1990-07 | $0 |
| 11 | Columbia Association Of Centralia | 1825 South Pine St, Centralia, IL 62801 | IL | 1951-06 | $0 |
| 12 | Comfort Foundation | 325 W Huron St Ste 220, Chicago, IL 60610-3642 | IL | 1995-04 | $0 |
| 13 | Communication Alliance To Network Thoroughbred Ex-Racehorses, Canter Of South Illinois | 252 Bethel Meadows Rd, Caseyville, IL 62232-2505 | IL | 2006-02 | $0 |
| 14 | Communication Workers Of America | 1408 Walnut, Murphysboro, IL 62966 | IL | 1940-06 | $0 |
| 15 | Communication Workers Of America, 14426 Local | 400 Ne Jefferson Ave Ste 403, Peoria, IL 61603-3747 | IL | 1950-11 | $0 |
| 16 | Communities Against Gangs Crystal Lake Area Chapter, Crystal Lake Chapter | PO BOX 955, Crystal Lake, IL 60039-0955 | IL | 1998-08 | $0 |
| 17 | Community Advocate Support Services Inc | 2969 Lund Ave Apt 3, Rock Ford, IL 61109-6042 | IL | 2001-12 | $0 |
| 18 | Community Education Support Systems Inc | 2060 W Monroe St, Springfield, IL 62704-1403 | IL | 1992-04 | $0 |
| 19 | Community In Unity Organization | 3473 S King Dr Ste 489, Chicago, IL 60616-4108 | IL | 2004-03 | $0 |
| 20 | Community Of Hope Lutheran Church, 1000168 Dist 22 | 20501 Telegraph St, Marengo, IL 60152-9479 | IL | 1941-07 | $0 |
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