| Other organizations in Illinois |
| Id | Name | Address | State | Established | Total Income |
| 1 | Big Brothers-Big Sisters Of Lake County | 560 W Lake St Fl 5, Chicago, IL 60661-1446 | IL | 1980-11 | $187,539 |
| 2 | Big Brothers-Big Sisters Of Metropolitan Chicago | 560 W Lake St Fl 5, Chicago, IL 60661-1445 | IL | 1967-09 | $4,057,093 |
| 3 | Big Brothers-Big Sisters Of Vermilion County | 100 N Franklin Street Suite B, Danville, IL 61832-5722 | IL | 1981-12 | $252,624 |
| 4 | Big Buddies Youth Service Inc | 400 W 76th St Ste 312, Chicago, IL 60620-1551 | IL | 1966-05 | $7,087 |
| 5 | Big Cat Foundation | 200 S Wacker Dr Ste 875, Chicago, IL 60606-5831 | IL | 1979-04 | $70,207 |
| 6 | Big Game Hunters Foundation | 1712 Shadow Rdg, Columbia, IL 62236-3346 | IL | 2004-03 | $57,957 |
| 7 | Big Game Hunters Inc | 1712 Shadow Rdg, Columbia, IL 62236-3346 | IL | 2004-08 | $71,110 |
| 8 | Big Girl Faith Foundation | 1634 E 53rd Pmb 286, Chicago, IL 60615 | IL | 2007-05 | $0 |
| 9 | Big Hollow Parent Teacher Organization | 33315 N Fish Lake Rd, Ingleside, IL 60041-9263 | IL | 2009-03 | $117,171 |
| 10 | Big Mama Loving Christian Preschool Inc | PO BOX 307, Maywood, IL 60153-0307 | IL | 2004-04 | $70,934 |
| 11 | Big Rock County Mutual Fire | PO BOX 217, Big Rock, IL 60511-0217 | IL | 1987-12 | $349,956 |
| 12 | Big Rock Historical Society | Box 206, Bigrock, IL 60511 | IL | 1998-09 | $0 |
| 13 | Big Rock Plowing Match Association Inc | PO BOX 261, Big Rock, IL 60511-0261 | IL | 1997-09 | $72,738 |
| 14 | Big Run Wolf Ranch Inc | 14857 S Farrell Rd, Lockport, IL 60441-9155 | IL | 2002-07 | $129,894 |
| 15 | Big Sisters | Po Box 5728, River Forest, IL 60305 | IL | 1946-03 | $0 |
| 16 | Big Ten Conference Inc | 5440 Park Pl, Rosemont, IL 60018-3732 | IL | 1937-09 | $318,381,451 |
| 17 | Big Waters Federation | 119 S Emerson St, Mt Prospect, IL 60056-3219 | IL | 1995-05 | $56,778 |
| 18 | Bigston Foundation | 1590 Touhy Ave, Elk Grove Vlg, IL 60007-5319 | IL | 1998-07 | $12 |
| 19 | Bike Psychos | PO BOX 652, Oaklawn, IL 60454-0652 | IL | 1984-09 | $19,303 |
| 20 | Bikol National Association Of America, Bnaa | 3839 N Kedzie Ave, Chicago, IL 60618-3413 | IL | 1985-08 | $30,115 |
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