| Other organizations in Illinois |
| Id | Name | Address | State | Established | Total Income |
| 1 | Sidener Cemetery Association | 540 Hilltop, Vandalia, IL 62471 | IL | 2011-08 | $53,792 |
| 2 | Sidney & Judith Freegard Crut | 231 S Lasalle St, Chicago, IL 60697-0001 | IL | | $0 |
| 3 | Sidney Christian Church | 305 E Main St, Sidney, IL 61877-7623 | IL | 1986-01 | $0 |
| 4 | Sidney United Church | Local, Sidney, IL 61877 | IL | 1966-04 | $0 |
| 5 | Sidney W Smyer Jr 6 Percent Annuity Tr Ua 121395 S17012, Rotary Foundation Of Rotary Intl | PO BOX 803878, Chicago, IL 60680-3878 | IL | | $0 |
| 6 | Sigma Alpha Epsilon Fraternity, Chicago Area Alumni Association | PO BOX 2173, Chicago, IL 60690-2173 | IL | 1968-10 | $0 |
| 7 | Sigma Alpha Epsilon Fraternity, Ilao Alumni Association | 870 N Orleans St Apt 2, Chicago, IL 60610-3009 | IL | 1968-10 | $0 |
| 8 | Sigma Alpha Mu Fraternity, Gamma Epsilon Chapter | 1038 S Racine Ave Apt 201, Chicago, IL 60607-1645 | IL | 1941-04 | $0 |
| 9 | Sigma Alpha Mu Gamma Epsilon Alumni Club | 4241 Main St, Skokie, IL 60076-2063 | IL | 2001-05 | $0 |
| 10 | Sigma Alpha Mu Gamma Epsilon Educational Foundation | 4241 Main St, Skokie, IL 60076-2063 | IL | 1993-08 | $0 |
| 11 | Sigma Chi Foundation-Pooled Income Fund Sigma Chi Foundation | 1714 Hinman Ave, Evanston, IL 60201-4517 | IL | | $0 |
| 12 | Sigma Chi Fraternity | 1408 W Fredonia Ave, Peoria, IL 61606 | IL | 1937-02 | $52,060 |
| 13 | Sigma Chi Fraternity | 611 W Adams St, Macomb, IL 61455 | IL | 1937-02 | $0 |
| 14 | Sigma Chi Fraternity, Sigma Chi Kappa | 2 East South Street Kbox 1795, Galesburg, IL 61401 | IL | 1937-02 | $0 |
| 15 | Sigma Chi Fraternity, Sigma Chi Omicron Omicron | 5514 S Hyde Park Blvd Unit 3, Chicago, IL 60637 | IL | 1937-02 | $0 |
| 16 | Sigma Chi Leadership Institute | 1714 Hinman Ave, Evanston, IL 60201 | IL | 2008-07 | $1,612,064 |
| 17 | Sigma Gamma Epsilon | Department Of Geology Wiu, Macomb, IL 61455 | IL | 1944-12 | $0 |
| 18 | Sigma Gamma Epsilon, Eta Phi Chapter | Northern Illinois University, Dekalb, IL 60115 | IL | 1944-12 | $0 |
| 19 | Sigma Gamma Rho Sorority Inc, Gamma Rho Chapter | PO BOX 472, Normal, IL 61761 | IL | 1962-03 | $0 |
| 20 | Sigma Kappa Sorority, Saluki Alumnae Chapter Of Sigma Kappa Sorority | 330 Highwood Ave Apt 1b, Highwood, IL 60040-1537 | IL | 1943-01 | $0 |
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