| 92,881 Illinois Tax-Exempt Organizations |
|
| Name | Address | Established | Total Income |
| Orpheus Club Of Peoria | 11520 N Brians Way, Dunlap, IL 61525-9053 | 2012-05 | $0 |
| Orpheus Hellenic Folklore Society | 606 Greendale Rd, Glenview, IL 60025-3908 | 1995-08 | $50,375 |
| Orr 2010 Charitable Remainder Unitrust | PO BOX 803878, Chicago, IL 60680-3878 | | $0 |
| Orr High School Alumni Association | 3515 W Polk St, Chicago, IL 60624-4114 | 2013-06 | $0 |
| Orrington Institute Limited | 8244 S Ashland Ave, Chicago, IL 60620 | 2013-07 | $0 |
| Orsini Charitable Foundation Inc | 1111 Nicholas Blvd, Elk Grove Vlg, IL 60007-2516 | 2008-10 | $290,301 |
| Ortamid Traditional Congregation, C-O Harvey I Weinstein | 206 Carmelhead Ln, Schaumburg, IL 60193-1701 | 1991-03 | $0 |
| Ortegon Music Studio Nfp | 3431 N Claremont Ave, Chicago, IL 60618-6003 | 2015-04 | $64,113 |
| Orthal Helen Trust T/W 38564 | 50 S Lasalle St, Chicago, IL 60603-1006 | 1972-08 | $0 |
| Orthodontic Alumni Association Of Illinois | 109 W Maple Ave, Libertyville, IL 60048 | 2014-12 | $0 |
| Orthodox Catholic University | 912 Countryside, Wheaton, IL 60187 | 2014-06 | $0 |
| Orthodox Christian Alumni In Action At The University Of Chicago | 112 E John St, Champaign, IL 61820-8202 | 2013-02 | $0 |
| Orthodox Christian Congregational Church | 3302 N Racine Ave, Chicago, IL 60657-3222 | 1978-08 | $0 |
| Orthodox Christian Laity | 5106a Murphy School Rd, Durham, NC 27705-8037 | 1988-05 | $79,977 |
| Orthodox Missions Mexico Inc | 950 Lee St, Des Plaines, IL 60016-6532 | 2009-07 | $517,504 |
| Orthodox Witness, No | 42 Waterford Ln, Glen Carbon, IL 62034 | 2002-01 | $0 |
| Orthopaedic Biomedical Imaging Institute | 609 Austin Avenue, Park Ridge, IL 60068 | 2012-01 | $0 |
| Orthopaedic Foot & Ankle Outreach & Education Fund | 6300 N River Rd Ste 510, Rosemont, IL 60018-4235 | 2004-06 | $3,026,867 |
| Orthopaedic Research And Education Foundation, Oref | 6300 N River Rd Ste 700, Rosemont, IL 60018-4238 | 1957-08 | $10,123,538 |
| Orthopaedic Research Foundation Of Southern Illinois | 2100 N Atlantic Ave Ph 1, Cocoa Beach, FL 32931-5070 | 2000-05 | $12,593 |
| Orthopaedic Research Society | 9400 W Higgins Rd Ste 225, Rosemont, IL 60018-4976 | 1982-06 | $2,344,040 |
| Orthopaedic Surgery And Sports Med Teaching And Research Foundation | 4809 Lawn Avenue, Western Springs, IL 60558 | 2009-06 | $0 |
| Orthopedic Device Reference Inc | 300 S Northwest Hwy Suite 203, Park Ridge, IL 60068 | 1998-06 | $0 |
| Orthopedic Education Inc | 5304 Cromwell Pl, Springfield, IL 62711-7134 | 2006-10 | $6 |
| Orthopedic Rehabilitation Research Foundation | 33 N La Salle St Ste 3400, Chicago, IL 60602-2667 | 2015-04 | $0 |
| Orthopedic Trauma Association Inc | 6300 N River Rd, Rosemont, IL 60018-4206 | 1986-06 | $3,740,440 |
| Ortique Resale Shop | 915 Chicago Ave, Evanston, IL 60202-1818 | 1988-08 | $0 |
| Orville & Kathleen Brunjes Memorial Scholarship Fund | 746 Purvis Dr, Wood River, IL 62095-1636 | 2003-05 | $420 |
| Orville H Larson And Shirley I Larson Charitable Tr, Lynn Bowman Et Al Ttee | 21 E Main St, Galesburg, IL 61401-4525 | 2010-10 | $812,833 |
| Orville Mowery Unitrust Univ Of Illinois Foundation Ttee | 1305 W Green St, Urbana, IL 61801-2945 | | $0 |
| Orville O & Lorraine Mowery Charitable Remainder Unitrust 2, University Of Il Foundation Ttee | 1305 W Green St, Urbana, IL 61801-2945 | | $0 |
| Orville O Oliver Trust | PO BOX 497, Pontiac, IL 61764-0497 | 1986-12 | $76,724 |
| Orzel Bialy Polish School | 1296 Cranbrook Dr, Schaumburg, IL 60193-4452 | 2015-03 | $0 |
| Osa Foundation | 351 W Hubbard Street, Chicago, IL 60654-4909 | 2005-06 | $2,822,101 |
| Osborne & Scekic Family Foundation | 134 N La Salle St Ste 2100, Chicago, IL 60602-1124 | 2003-04 | $159,869 |
| Oscar B & Nataline Soderholm Trust Dtd 092879 | 8303 W Higgins Rd 6th Fl, Chicago, IL 60631-2941 | | $0 |
| Oscar G & Elsa S Mayer Family Foundation | 190 S Lasalle St Ste 610, Chicago, IL 60603-3557 | 1995-10 | $3,489,137 |
| Oscar M Cohn Charitable Trust | PO BOX 11356, Clayton, MO 63105-0156 | 1900-01 | $80,896 |
| Oscar M Cohn Tr | PO BOX 68, Bloomington, IL 61702-0068 | | $116,295 |
| Oscar M Stewart Testamentary Trust | 135 S Lasalle St, Chicago, IL 60603-4177 | 1944-08 | $212,794 |
| Oscar Meyer Foods Medical Trust 22-73452 | 50 S La Salle, Chicago, IL 60675-0001 | 1988-08 | $0 |
| Oscar Mike Foundation | 103 Bradford Pl Se, Poplar Grove, IL 61065 | 2013-04 | $0 |
| Osco & Western Farmers Mutual Fire & Lightning Insurance Company | PO BOX 98, Orion, IL 61273-0098 | 1944-12 | $468,221 |
| Osco Mutual Water Supply Co | PO BOX 265, Osco, IL 61274-0265 | 1946-04 | $0 |
| Osf Healthcare Foundation | 800 Ne Glen Oak Ave, Peoria, IL 61603-3255 | 2014-07 | $39,503,223 |
| Osf Healthcare System | 800 Ne Glen Oak Ave, Peoria, IL 61603-3200 | 1946-03 | $1,896,415,307 |
| Osf Heart & Vascular Institute | 800 Ne Glen Oak Ave, Peoria, IL 61603-3255 | 2011-09 | $0 |
| Osf Multi-Specialty Group | 800 Ne Glen Oak Ave, Peoria, IL 61603-3255 | 2013-08 | $0 |
| Osf Saint Luke Medical Center | 1051 W South St, Kewanee, IL 61443-8354 | 1950-03 | $15,634,186 |
| Oshkosh B Gosh Inc Health & Welfare Benefits Trust | 209 W Jackson Blvd Ste 700, Chicago, IL 60606-6936 | 1996-06 | $0 |
| Osi Group Foundation | 1225 Corporate Blvd, Aurora, IL 60505-7608 | 2011-11 | $100,000 |
| Osina Charitable Family Foundation Inc | 3750 W Devon Ave, Lincolnwood, IL 60712-1124 | 1992-01 | $27 |
| Osmani Family Foundation Ofillinois Usa | 22340 Prairie Ln, Kildeer, IL 60047-9771 | 2008-06 | $6,493 |
| Osmosis Education Mentoring Initiative, Project Osmosis | 1740 West 99th Street, Chicago, IL 60618 | 2005-01 | $107,359 |
| Osprey Foundation | 433 W Melrose St, Chicago, IL 60657-3833 | 1995-06 | $228,125 |
| Osprey Foundation Inc | 10 S Riverside Plz Ste 2220, Chicago, IL 60606-3707 | 2002-04 | $0 |
| Osseointegration Foundation | 85 W Algonquin Rd Ste 550, Arlington Hts, IL 60005-4460 | 1987-10 | $1,247,308 |
| Osteopathic International Alliance, Oia | 142 East Ontario Street, Chicago, IL 60611-2864 | 2007-07 | $94,052 |
| Osteopathic Trust | 212 East Ohio Street, Chicago, IL 60611-3592 | 1944-12 | $0 |
| Osterling Family Charitable Remainder Unitrust, Osterling Steven Ttee | 24 W Traube Ave, Downers Grove, IL 60515-5819 | | $0 |
| Oswego Christian Foundation | 33 Stonehill Rd, Oswego, IL 60543-9449 | 2004-03 | $541,788 |
| Oswego Cobras Baseball Club | 2345 Pagosa Springs Dr, Aurora, IL 60503-6462 | 2014-08 | $149,883 |
| Oswego Economic Development Corporation | 26 W Van Buren St, Oswego, IL 60543-7211 | 1997-10 | $340,196 |
| Oswego Foundation For Educational Excellence | PO BOX 111, Oswego, IL 60543-0111 | 1996-04 | $33,418 |
| Oswego High School All-Sports Boosters Inc | Route 71, Oswego, IL 60543 | 1992-01 | $265,747 |
| Oswego Outlaws Fastpitch Softball Inc | PO BOX 489, Oswego, IL 60543-0489 | 2009-05 | $172,799 |
| Oswego Presbyterian Church | 1976 Route 25, Oswego, IL 60543-9834 | 1964-01 | $0 |
| Oswego Wolves Softball Association | PO BOX 6015, Aurora, IL 60598-0015 | 2011-02 | $85,721 |
| Oswego Youth Tackle Football Inc | PO BOX 531, Oswego, IL 60543-0531 | 1999-08 | $174,969 |
| Oswegoland Fishin Fools Inc | 808 N Lake St, Aurora, IL 60506 | | $0 |
| Oswegoland Heritage Association | Po Box 23 72 Polk Street, Oswego, IL 60543 | 1977-06 | $0 |
| Oswegoland Park & Recreation Foundation Inc | 313 E Washington St, Oswego, IL 60543 | 2006-07 | $0 |
| Oswegoland Pony Baseball Inc | PO BOX 633, Oswego, IL 60543-0633 | 2008-12 | $278,535 |
| Oswegoland Seniors Inc, Oswego Senior Center | Po Box 288, Oswego, IL 60543 | 2009-12 | $355,188 |
| Other Guys Alumni Association | 6869 N Lincoln Memorial Pkwy, Warrensburg, IL 62573 | 2010-01 | $0 |
| Other Theatre Company | 827 Addison Ave, Lombard, IL 60148-6509 | 2014-09 | $0 |
| Other Voices Inc | 601 S Morgan, Chicago, IL 60607-7100 | 1985-09 | $0 |
| Other Women Hear You, Other Women Hear You Owhyi | Po Box 08442, Chicago, IL 60608 | | $0 |
| Otho S A Sprague Memorial Institute | PO BOX 806214, Chicago, IL 60680-4123 | 1942-09 | $21,173,833 |
| Otis & Laverne Loomis Chartiable Remainder Unitrust Dt 122392 | 2002 S Arlington Heights Rd, Arlington Hts, IL 60005-4102 | | $0 |
| Otis Wilson Charitable Association | 40 E Chicago Ave, Chicago, IL 60611-2026 | 1992-10 | $158,859 |
| Ottawa Airmens Club | Rr 1, Ottawa, IL 61350-9801 | 1968-04 | $0 |
| Ottawa Area Chamber Of Commerce | PO BOX 888, Ottawa, IL 61350-8386 | 1945-08 | $278,811 |
| Ottawa Area Economic Development Foundation Inc | 633 Lasalle St 401, Ottawa, IL 61350 | 1996-05 | $287 |
| Ottawa Art League | P O Box 643, Ottawa, IL 61350 | 1969-08 | $0 |
| Ottawa Avenue Cemetery Association Inc | 1601 Ottawa Ave, Ottawa, IL 61350-3467 | 1941-11 | $104,897 |
| Ottawa Baseball Boosters Inc | 1416 Huron Street, Ottawa, IL 61350 | 2009-06 | $0 |
| Ottawa Canal Association | 2670 E 1545th Rd, Ottawa, IL 61350 | 2011-05 | $3,030 |
| Ottawa Chapter 522 Women Of The Moose, 522 | PO BOX 425, Ottawa, IL 61350-0425 | 1935-08 | $20,629 |
| Ottawa Chapter Of Illinois Association Of Highway Engineers | 700 E Norris Dr, Ottawa, IL 61350-1628 | 1960-11 | $0 |
| Ottawa Christian Mission Inc | PO BOX 558, Champaign, IL 61824-0558 | 1969-05 | $0 |
| Ottawa Church Of God In Joliet Il | 615 2nd Ave, Joliet, IL 60433-1133 | 1998-01 | $0 |
| Ottawa Concert Assoication | 714 Chapel Street, Ottawa, IL 61350 | 1972-12 | $0 |
| Ottawa Crushers Kids Wrestling Club | 1309 Starfire Dr, Ottawa, IL 61350-1623 | 2014-03 | $0 |
| Ottawa Eagles Youth Football Nfp | 823 Clinton St, Ottawa, IL 61350 | 2006-03 | $0 |
| Ottawa Educators International Inc | 3354 E 2250th Rd, Ottawa, IL 61350 | 1999-11 | $0 |
| Ottawa Freedom Asssociation Ltd | Po Box 770, Ottawa, IL 61350 | 1993-12 | $0 |
| Ottawa Friendship House Work Activity Center Inc | PO BOX 2073, Ottawa, IL 61350-6673 | 1967-10 | $1,683,940 |
| Ottawa Girls Fastpitch Association | Po Box 2022, Ottawa, IL 61350 | 1998-02 | $62,964 |
| Ottawa Historical And Scouting Heritage Museum | PO BOX 2241, Ottawa, IL 61350-6841 | 1994-05 | $28,086 |
| Ottawa Hiway Credit Union | 700 E Norris Dr, Ottawa, IL 61350-1628 | 1970-10 | $335,280 |
| Ottawa Jewish Cemetery | 701 Lasalle Street, Ottawa, IL 61350 | 1953-10 | $0 |
| Ottawa Lodge No 960 Loyal Order Of Moose, 960 | PO BOX 656, Ottawa, IL 61350-0656 | 1935-08 | $217,808 |
| Ottawa Opportunity School | 114 E Jefferson St, Ottawa, IL 61350-5004 | 1974-02 | $120,533 |
| Ottawa Police Benevolent & Protective Association Unit 18 | 301 W Lafayete St, Ottawa, IL 61350-5700 | 2003-04 | $48,424 |
| Ottawa Public Schools Band And Orchestra Parents Association | 701 E Mckinley Road, Ottawa, IL 61350 | 2012-10 | $6,359 |
| Ottawa Regional Hospital & Healthcare Center Auxiliary | 1100 E Norris Dr, Ottawa, IL 61350-1604 | 1993-06 | $322,167 |
| Ottawa Regional Hospital & Healthcare Center, Osf Saint Elizabeth Medical Center | 1100 E Norris Dr, Ottawa, IL 61350-1604 | 1967-01 | $85,911,200 |
| Ottawa Regional Hospital & Healthcare Ctr Liability Loss Fund | 1100 E Norris Dr, Ottawa, IL 61350-1604 | 1987-04 | $125,365 |
| Ottawa Regional Hospital Foundation | 1100 E Norris Dr, Ottawa, IL 61350-1604 | 1996-03 | $3,023,539 |
| Ottawa Rescue Squad Inc | PO BOX 234, Ottawa, IL 61350-0234 | 1963-05 | $249,473 |
| Ottawa Senior Community Services Inc | 1003 Douglas St, Ottawa, IL 61350-3307 | 1982-08 | $0 |
| Ottawa Silica Employees Sick And Accident Association, Robert Wilkie | 418 E Van Buren St, Ottawa, IL 61350-3642 | 1988-11 | $0 |
| Ottawa Township High School Boosters Club | 211 E Main St, Ottawa, IL 61350-3111 | 2011-05 | $164,633 |
| Ottawa Township High School District 140 Educational, C-O Michael Clinch | 211 E Main St, Ottawa, IL 61350-3111 | 1994-08 | $166,223 |
| Ottawa Visitors Center Inc | 100 W Lafayette St, Ottawa, IL 61350-2108 | 1996-12 | $246,402 |
| Ottawa Youth Center | 925 La Salle St, Ottawa, IL 61350-2004 | 1967-08 | $0 |
| Ottawas Downtown Merchants Nfp | 601 Christie St, Ottawa, IL 61350-3922 | 2014-01 | $0 |
| Otter Creek Historical Society | 105 West Main St, Durand, IL 61024 | 1983-11 | $0 |
| Otter Creek Historical Society Inc | 107 E Main St, Otterville, IL 62052-6791 | 1999-06 | $17,228 |
| Otterbeck Family Foundation | 5215 Old Orchard Rd Ste 525, Skokie, IL 60077-1055 | 2003-05 | $27 |
| Otterville Southern Baptist Church | 103 E Main St, Otterville, IL 62052-6791 | 1970-05 | $0 |
| Otto And Margaret Zack Charitable Trust Tua | 231 S Lasalle St Il 1-231-10-07, Chicago, IL 60697-0001 | 2014-09 | $1,598,056 |
| Otto Baum Company Inc Foundation | 866 N Main St, Morton, IL 61550-1602 | 1998-12 | $40,000 |
| Otto Bender Scholarship Tr No 895 | PO BOX 280, Carlyle, IL 62231-0280 | 1996-07 | $13,645 |
| Otto H Coelln Charitable Remainder Unitrust | 1305 W Green St, Urbana, IL 61801-2945 | | $0 |
| Otto W Lehmann Foundation | 680 N Lake Shore Dr 1722 Tower Res, Chicago, IL 60611 | 1967-08 | $130,709 |
| Ouilmette Foundation | 1200 Wilmette Ave, Wilmette, IL 60091-2721 | 1983-06 | $0 |
| Ouilmette Golf Club Inc | 3900 Fairway Dr, Wilmette, IL 60091-1043 | 2001-02 | $62,668 |
| Ounce Of Prevention Fund | 33 W Monroe, Chicago, IL 60603-5300 | 1982-07 | $50,460,457 |
| Our Angel Of Hope | 902 Maple Street, Albion, IL 62806 | 2002-06 | $0 |