people with ability
At Triangle, Inc., we see ability in everyone. Discover ability with us.


contact one of our offices

Triangle, Inc. Malden Office – Pearl Street Headquarters
(781) 322-0400
420 Pearl Street
Malden, MA 02148

Triangle, Inc. Malden Office – Main Street
(781) 322-0400
493 Main Street
Malden, MA 02148

Triangle, Inc. Boston Office
(781) 322-0400
89 South Street, Suite 405
Boston, MA 02111

Triangle, Inc. Randolph Office
(781) 885-0904
9 Memorial Parkway
Randolph, MA 02368

Triangle, Inc. Salem Office
(978) 232-3933
45 Congress Street, Suite 4171
Salem, MA 01970

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Triangle, Inc. is a registered non-profit 501(c)(3) organization.

Triangle has received Massachusetts guidance about opening our day program service sites in the month of July.  Please read more here for our statement.