Town of Islip

Bay Shore Chamber of Commerce BID | P.O. Box 5110, Bay Shore, NY 11706
Bayport Blue Point Chamber of Commerce  |  P.O. Box 201, Bayport, NY 11705
Brentwood Chamber of Commerce | P.O. Box 41, Brentwood, NY 11717
East Islip Chamber of Commerce | P.O. Box 88, East Islip NY  11730
Greater Sayville Chamber of Commerce | P.O. Box 235, Sayville, NY 11782-0235*
Holbrook Chamber of Commerce | P.O. Box 565, Holbrook, NY 11953*
Islandia Chamber of Commerce | P.O. Box 127, Central Islip, NY 11722
Islip Chamber of Commerce | P.O. Box 112 Islip, New York 11751-3515
Oakdale Chamber of Commerce | 1155 Montauk Highway, Oakdale NY 11769*
Ronkonkoma Chamber of Commerce P.O. Box 2546, Ronkonkoma, NY 11779*
​West Islip Chamber of Commerce | P.O. Box 58, West Islip, NY  11795