| Organizations performing similar types of work |
| Id | Name | Address | State | Established | Total Income |
| 1 | Humane Society Of The United States | 700 Professional Dr, Gaithersburg, MD 20879-3418 | MD | 1956-01 | $249,813,143 |
| 2 | American Society For The Prevention Of Cruelty To Animals | 424 E 92nd St, New York, NY 10128-6804 | NY | 1921-03 | $150,893,066 |
| 3 | San Diego Humane Society & Spca | 5500 Gaines St, San Diego, CA 92110-2572 | CA | 1938-05 | $121,708,547 |
| 4 | Massachusetts Society For The Prevention Of Cruelty To Animals | 350 S Huntington Ave, Boston, MA 02130-4803 | MA | 1934-11 | $73,938,106 |
| 5 | Animal Rescue League Of Boston | 10 Chandler St, Boston, MA 02116-5221 | MA | 1943-09 | $46,129,056 |
| 6 | Anti-Cruelty Society | 157 W Grand Ave, Chicago, IL 60654-7105 | IL | 1937-09 | $36,410,036 |
| 7 | North Shore Animal League America Inc | 750 Port Washington Blvd, Prt Washingtn, NY 11050-3720 | NY | 1948-06 | $33,592,736 |
| 8 | World Society For The Protection Of Animals | 89 South St Ste 201, Boston, MA 02111-2678 | MA | 1981-07 | $8,741,002 |
| 9 | New England Anti-Vivisection Society | 333 Washington St Ste 850, Boston, MA 02108-5111 | MA | 1944-03 | $2,121,160 |
| 10 | Bosler Humane Society Inc | PO BOX 12, Baldwinville, MA 01436-0012 | MA | 1979-12 | $266,274 |
| 11 | Northeast Animal Shelter Inc | 347 Highland Ave, Salem, MA 01970-1738 | MA | 1976-01 | $3,815,997 |
| 12 | John Butler Mulliken Foundation Inc | 117 Kendrick St Ste 800, Needham, MA 02494-2728 | MA | 1999-09 | $2,856,014 |
| 13 | Merwin Memorial Free Clinic For Animals Inc | 542 Cambridge St, Allston, MA 02134-2430 | MA | 1980-11 | $1,426,417 |
| 14 | Cape Ann Animal Aid Association Inc | 260 Main St, Gloucester, MA 01930-6022 | MA | 1965-04 | $1,384,067 |
| 15 | Humane Society & Shelter Southcoast | 31 Ventura Dr, N Dartmouth, MA 02747-1244 | MA | 1932-03 | $1,044,976 |
| 16 | Berkshire Humane Society Inc | 214 Barker Rd, Pittsfield, MA 01201-8036 | MA | 1992-07 | $943,910 |
| 17 | Merrimack River Feline Rescue Society Inc | 63 Elm St, Salisbury, MA 01952-1936 | MA | 1993-03 | $901,091 |
| 18 | Animal Shelter Inc | 17 Laurelwood Rd, Sterling, MA 01564-2220 | MA | 1994-12 | $859,013 |
| 19 | Buddy Dog Humane Society Inc | 151 Boston Post Rd, Sudbury, MA 01776-3173 | MA | 1966-06 | $715,634 |
| 20 | Humane Society-Lowell | 951 Broadway St, Lowell, MA 01854-3007 | MA | 1968-07 | $498,141 |
| 21 | Greyhound Friends Inc | 167 Saddle Hill Rd, Hopkinton, MA 01748-1192 | MA | 1988-07 | $487,343 |
| 22 | Pet Partners Inc | 139 Shaw St, Fall River, MA 02724-1423 | MA | 2001-02 | $486,391 |
| 23 | Metro West Humane Society Inc | PO BOX 1068, Framingham, MA 01701-1068 | MA | 1977-01 | $369,748 |
| 24 | Baypath Humane Society Of Hopkinton Inc | 5 Rafferty Rd, Hopkinton, MA 01748-1281 | MA | 1977-11 | $342,410 |
| 25 | Forever Paws Animal Shelter | 300 Lynwood St, Fall River, MA 02721-2103 | MA | 1996-07 | $304,836 |
| 26 | Foster Parrots Ltd | 35 Vernon St, Rockland, MA 02370-1903 | MA | 1999-05 | $260,523 |
| 27 | Milton Animal League Inc, Friends Of The Milton Dog Pound | 181 Governor Stoughton Ln, Milton, MA 02186-3712 | MA | 1979-01 | $253,072 |
| 28 | Dog Orphans Inc | PO BOX 767, Douglas, MA 01516-0767 | MA | 1972-04 | $241,449 |
| 29 | Greyhound Project Inc | 17 Martin Ter, Randolph, MA 02368-5166 | MA | 1993-11 | $222,182 |
| 30 | Paw Safe Animal Rescue Inc | 283 High St, Medford, MA 02155-3717 | MA | 1995-11 | $220,510 |
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