| Other organizations in Connecticut |
| Id | Name | Address | State | Established | Total Income |
| 1 | Notre Dame Child Development Center Inc | 345 Belden Hill Rd, Wilton, CT 06897-3800 | CT | 1946-03 | $0 |
| 2 | Notre Dame Loyalty & Endowment Fund Inc | 24 Ricardo St, West Haven, CT 06516-2446 | CT | 1946-03 | $0 |
| 3 | Nuevo Amanecer | PO BOX 34, Greenwich, CT 06836-0034 | CT | 1964-08 | $0 |
| 4 | New Birth Ministry Inc | 23 Harold St, Hartford, CT 06112-1121 | CT | 2009-07 | $0 |
| 5 | Nevada Organization Of Musicians With Artistic Daring | 555 Winchester Ave No 2, New Haven, CT 06511 | CT | 2010-03 | $0 |
| 6 | Oakville-Watertown Fife & Drum Corps Inc | 30 Oak St, Watertown, CT 06795-2737 | CT | 1968-11 | $0 |
| 7 | Oasis Christian Church Of Connecticut Inc | 500 Bloomfield Ave, Windsor, CT 06095-2306 | CT | 1965-01 | $0 |
| 8 | Oasis Home Fellowship | PO BOX 216, Marion, CT 06444-0216 | CT | 1999-02 | $0 |
| 9 | Oasis Of Restoration Inc | 138 Garfield Ave, New London, CT 06320-3521 | CT | 1996-05 | $0 |
| 10 | Oasis-Celebrate The Journey | 176 Sandbank Rd, Cheshire, CT 06410-1558 | CT | 2009-07 | $0 |
| 11 | Obrien Charitable Remainder Unitrust, Patrick Obrien Ttee | 36 Farm St, Danbury, CT 06811-4613 | CT | | $0 |
| 12 | Odiyana Buddhist Center Inc | 52 National Drive 2nd Fl, Glastonbury, CT 06033-1212 | CT | 2007-01 | $0 |
| 13 | Off The Streets Inc, Ots | PO BOX 591, Bethel, CT 06801-0591 | CT | 2014-09 | $59,176 |
| 14 | Old Lyme Historical Society Inc | Po Box 352, Old Lyme, CT 06371 | CT | 2006-03 | $195,007 |
| 15 | Old Mystic Baptist Church, 2103 | 151 Shewville Rd, Old Mystic, CT 06372 | CT | 1955-04 | $0 |
| 16 | Old Saybrook Babe Ruth Inc | 3 West View Circle, Old Saybrook, CT 06475 | CT | 2009-06 | $0 |
| 17 | Old Saybrook Soccer Club Inc | 45 Maynard Road, Old Saybrook, CT 06475 | CT | 2004-09 | $0 |
| 18 | Old Ship Of Zion Baptist Church, 6403 | 45 Acton St, Hartford, CT 06120-1802 | CT | 1955-04 | $0 |
| 19 | Oliver Ellsworth Parent Teacher Organization | 730 Kennedy Rd, Windsor, CT 06095-1925 | CT | 1990-03 | $0 |
| 20 | Om Foundation Inc | 1 Hawthorne Ln, Bloomfield, CT 06002-1794 | CT | 2010-03 | $0 |
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