| Other organizations in Illinois |
| Id | Name | Address | State | Established | Total Income |
| 1 | Willowbrook-Burr Ridge Chamber Of Commerce | 8300 S Madison St, Burr Ridge, IL 60527-6285 | IL | 2003-06 | $98,105 |
| 2 | Wilmette Arts Guild | PO BOX 902, Wilmette, IL 60091-0902 | IL | 1994-10 | $27,457 |
| 3 | Wilmette Harbor Association Inc | 20 Harbor Dr, Wilmette, IL 60091-2881 | IL | 1945-10 | $823,300 |
| 4 | Wilmington Little League Inc | 912 Laurel Ave, Wilmington, IL 60481-1462 | IL | 1974-04 | $58,643 |
| 5 | Wilmington School District 209-U Foundation For Excellence | 209u Wildcat Ct, Wilmington, IL 60481-4500 | IL | 2000-02 | $81,508 |
| 6 | Windows Of Opportunity Inc | 9542 S Seeley Ave, Chicago, IL 60643-1124 | IL | 1994-05 | $134,811 |
| 7 | Windy City Circus Ltd | 1853 Holly Ave, Northbrook, IL 60062-5025 | IL | 2009-09 | $5,055 |
| 8 | Windy City Classic Foundation | 1119 W White Oak St Ste 106, Arlington Heights, IL 60005-3032 | IL | 2000-02 | $86,061 |
| 9 | North Lawndale Land Corporation Nfp | 1000 Lake Cook Rd, Glencoe, IL 60022-1168 | IL | 2006-01 | $0 |
| 10 | Windy City Sox Fans | 9923 Ridgeland Ave, Chicago Ridge, IL 60415-1262 | IL | 1996-05 | $7,605 |
| 11 | Winnetka Municipal Employees Credit Union | 510 Green Bay Road, Winnetka, IL 60093 | IL | 1956-10 | $16,350 |
| 12 | Winnetka Parks Foundation | PO BOX 26, Winnetka, IL 60093-0026 | IL | 1999-07 | $234,709 |
| 13 | Winney Foundation | 1111 N Oxfordshire Ln, Edwardsville, IL 62025-3875 | IL | 2000-11 | $269,308 |
| 14 | Winning Workplaces | 1603 Orrington Avenue Suite 1275, Evanston, IL 60201 | IL | 2002-03 | $1,133,615 |
| 15 | Wisconsin Gas Company Welfare Benefits Trust | 50 S Lasalle St, Chicago, IL 60603-1006 | IL | 1988-04 | $309 |
| 16 | Wish Upon A Star, Baseball In The Snow Inc | 1312 W Jefferson St Suite A, Joliet, IL 60435-6884 | IL | 1993-02 | $111,284 |
| 17 | Wm Wrigley Jr Company Foundation | 930 W Evergreen Ave, Chicago, IL 60642-2437 | IL | 1987-03 | $1,430,549 |
| 18 | Wolcott School | 853 N Elston Ave, Chicago, IL 60642-4102 | IL | 2014-08 | $3,462,166 |
| 19 | Wolves Youth Athletic Association | 8900 169th St, Orland Hills, IL 60487-6039 | IL | 2002-09 | $100,071 |
| 20 | Woman 2 Woman Community Services | 524 Industrial Dr, Naperville, IL 60563-3935 | IL | 2004-10 | $265 |
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