| Other organizations in Pennsylvania |
| Id | Name | Address | State | Established | Total Income |
| 1 | Open Hands Ministries | Po Box 896, Ligonier, PA 15658 | PA | 2000-12 | $0 |
| 2 | Open Mind Ministry Community Outreach | 5119 Nth 11th Street, Philadelphia, PA 19141 | PA | 2010-04 | $0 |
| 3 | Operation Holiday Morale Inc | Rr 1 Box 106, Granville Summit, PA 16926 | PA | 2007-07 | $0 |
| 4 | Operation Hope Hooversville Area Food | Po Box 37, Hooversville, PA 15936 | PA | 2011-11 | $0 |
| 5 | Operation Spay Neuter Inc | Po Box 1604, Butler, PA 16003 | PA | 2006-08 | $70,698 |
| 6 | Operation Sweet Freedom | 131 Wagner Street, Carlisle, PA 17013 | PA | 2004-12 | $0 |
| 7 | Operation Valor Arts A Veteran's Initiative | PO BOX 144, Pittsburgh, PA 15137 | PA | 2012-11 | $0 |
| 8 | Orangeville Public Library Inc | PO BOX 268, Orangeville, PA 17859 | PA | 2001-12 | $0 |
| 9 | Orbisonia-Rockhill Furnace | Po Box 382, Orbisonia, PA 17243 | PA | 2011-10 | $0 |
| 10 | Orchard Apartments Tenant Association | 2204 Cedar Run Drive Ext, Camp Hill, PA 17011 | PA | 1998-07 | $0 |
| 11 | Orcutts Grove Cemetery Association | 231 Hubble Street, Noxen, PA 18636 | PA | 1955-09 | $0 |
| 12 | Ore Valley Parent Teacher Organization | 2620 Springwood Rd, York, PA 17402-9508 | PA | 2014-08 | $81,941 |
| 13 | Orion Charities Inc | 129 Carriage Hill Dr, Mars, PA 16046-2351 | PA | 2012-06 | $0 |
| 14 | Orisa Community Development Incorpration | 3429 West Clearfield Street, Philadelphia, PA 19132 | PA | 2008-04 | $0 |
| 15 | Ormrod Playground Association | 3021 Audrey Drive, Coplay, PA 18037 | PA | 2013-03 | $0 |
| 16 | Orphan Love International | 83 Boy Scout Rd, Kutztown, PA 19530 | PA | 2013-02 | $0 |
| 17 | Orphaned Kitten Program | Po Box 183, Lemont, PA 16851 | PA | 2012-04 | $0 |
| 18 | Orwell Cemetery Association | 3763 Orwell Hill Road, Rome, PA 18837 | PA | 1965-09 | $0 |
| 19 | Orwigsburg Boys Club Home Association Inc | 91 East Independance Street, Orwigsburg, PA 17961 | PA | 1975-06 | $0 |
| 20 | Osborne Trail And Park Association Inc | Po Box 303, Sewickley, PA 15143 | PA | 2007-01 | $0 |
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