Chambers of Commerce
- Baldwin Chamber of Commerce
- Bayville Chamber of Commerce
- Bellmore Chamber of Commerce
- Massapequa Chamber of Commerce
- East Meadow Chamber of Commerce
- Elmont Chamber of Commerce
- Farmingdale Business Improvement District (BID)
- Farmingdale Chamber of Commerce
- Floral Park Chamber of Commerce
- Franklin Square Chamber of Commerce
- Freeport Chamber of Commerce
- Garden City Chamber of Commerce
- Great Neck Chamber of Commerce
- Great Neck Plaza Business Improvement District (BID)
- Gold Coast Business Association (Chamber)
- Greater Port Washington Business Improvement District
- Hempstead Chamber of Commerce
- Hicksville Chamber of Commerce
- Levittown Chamber of Commerce
- Long Island African American Chamber of Commerce,inc.(LIAACC)
- Long Beach Chamber of Commerce
- Long Island Hispanic Chamber of Commerce (LIHCC)
- Lynbrook Chamber of Commerce
- Malverne Chamber of Commerce
- Manhasset Chamber of Commerce
- Merrick Chamber of Commerce
- Mineola Chamber of Commerce
- New Hyde Park Chamber of Commerce
- North Shore Hispanic Chamber of Commerce
- Oyster Bay/East Norwich Chamber of Commerce
- Oyster Bay Main Street Association
- Plainview/Old Bethpage Chamber of Commerce
- Port Washington Business Improvement District (BID)
- Rockville Centre Chamber of Commerce
- Roosevelt Chamber of Commerce
- Roslyn Chamber of Commerce
- Seaford Chamber of Commerce
- Syosset/Woodbury Chamber of Commerce
- Uniondale Chamber of Commerce
- Wantagh Chamber of Commerce
- Westbury/Carle Place Chamber of Commerce
- Westbury Business Improvement District (BID)
- West Hempstead Chamber of Commerce
- Valley Stream Chamber of Commerce