| Other organizations in Massachusetts |
| Id | Name | Address | State | Established | Total Income |
| 1 | Black River Project Inc | 38 Antwerp St, Brighton, MA 02135 | MA | 1999-02 | $0 |
| 2 | Black Rock Cares | 19 Clubhouse Drive, Hingham, MA 02043 | MA | 2009-02 | $88,272 |
| 3 | Blackbird Productions Inc | 63 Highland Avenue, Cambridge, MA 02139 | MA | 2004-09 | $0 |
| 4 | Blackey Family Foundation | 5 Faxon Dr, Stow, MA 01775-2149 | MA | 2000-01 | $1 |
| 5 | Blackstone Headwaters Coalition | PO BOX 70688, Worcester, MA 01607-0688 | MA | 2002-10 | $3 |
| 6 | Blackstone Housing Corporation Joseph D Early Village | 8 1/2 Early Vlg, Blackstone, MA 01504-1670 | MA | 1992-09 | $653,924 |
| 7 | Blackstone Lions Club Inc | PO BOX 27, Blackstone, MA 01504-0027 | MA | 1987-06 | $6,281 |
| 8 | Blackstone Millville Music Association Inc | PO BOX 181, Blackstone, MA 01504-0181 | MA | 1984-03 | $53,594 |
| 9 | Blackstone Millville Youth Soccer Organization Bmyso Inc | PO BOX 183, Blackstone, MA 01504-0183 | MA | 1997-08 | $75,213 |
| 10 | Blackstone River Coalition Inc | PO BOX 70477, Worcester, MA 01607-0477 | MA | 2007-06 | $39,586 |
| 11 | Blackstone River Watershed Association Inc | 271 Oak Street, Uxbridge, MA 01569 | MA | 1971-03 | $0 |
| 12 | Blackstone Community Center Council Inc | PO BOX 181044, Boston, MA 02118-0011 | MA | 1978-07 | $87,704 |
| 13 | Blackstone Valley Art Association | 44 Church St Pobox 136, Whitinsville, MA 01588 | MA | 1994-12 | $0 |
| 14 | Blackstone Valley Boys & Girls Club Inc | PO BOX 283, Blackstone, MA 01504-0283 | MA | 1994-09 | $630,908 |
| 15 | Blackstone Valley Cal Ripken-Babe Ruth League | 41 Rayburn Drive, Millbury, MA 01527 | MA | 2007-01 | $48 |
| 16 | Blackstone Valley Chamber Of Commerce Education Foundation | 110 Church Street, Whitinsville, MA 01588-1442 | MA | 2001-08 | $214,706 |
| 17 | Blackstone Valley Chamber Of Commerce Inc | 110 Church Street, Whitinsville, MA 01588-1442 | MA | 1997-07 | $296,576 |
| 18 | Black Stone Valley India Society | PO BOX 233, South Grafton, MA 01560 | MA | 2006-01 | $0 |
| 19 | Worcester County Motorcyclists Survivors Fund Inc | PO BOX 536, North Uxbridge, MA 01538 | MA | 2009-08 | $0 |
| 20 | Blackstone Valley Veterans Association | 875 Hill St, Whitinsville, MA 01588-1058 | MA | 2008-06 | $240 |
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