| Suffolk County | Nassau County | The Hamptons | 
| J D Health CLUB INC 921 Lincoln Ave Holbrook NY, 11741 (631) 589-6423 | J M GYM 207 Route 109 West Babylon NY, 11704 (631) 422-6357 | ||
| Jewish Community Center Sid Jacobson 300 Forest Dr Greenvale NY, 11548 (516) 484-1545 | Kid Fitness INC 8 Laurel Ave East Islip NY, 11730 (631) 277-6560 | ||
| Kings Point Fitness 770 Middle Neck Rd Great Neck NY, 11024 (516) 773-8778 | L & L Iron GYM 3914 Merrick Rd Seaford NY, 11783 (516) 679-6949 | ||
| L.A. Fitness 1111 Marcus Ave New Hyde Park NY, 11042 (516) 355-2302 | LA Fitness International 921 Port Washington Blvd Port Washington NY, 11050 (516) 305-5414 | ||
| LA Fitness Sports CLUB 2110 Broadhollow Rd Farmingdale NY, 11735 (631) 293-0381 | Ladies Workout Express 611 Main St Farmingdale NY, 11735 (516) 293-2006 | ||
| Ladies Workout Express 188 Sunrise Hwy West Islip NY, 11795 (631) 893-5650 | Ladies Workout Express 332 Jericho Tpke Huntington Station NY, 11746 (631) 547-4100 | ||
| Lake Avenue Fitness 543 Lake Ave Saint James NY, 11780 (631) 686-5707 | Levittown Fitness Group 3025 Hempstead Tpke Levittown NY, 11756 (516) 605-1270 | ||
| Life Fitness 122 Exeter Rd Massapequa NY, 11758 (516) 541-3547 | Life Time Fitness 350 Robbins Ln Syosset NY, 11791 (516) 822-1777 | ||
| Long Beach Fitness 168 W Park Ave Long Beach NY, 11561 (516) 208-6090 | Long Island Fitness 354 Montauk Hwy Wainscott NY, 11975 (631) 604-2560 | ||
| Lucille Robert Health Club 1000 Sunrise Hwy Massapequa NY, 11758 (516) 541-8840 | Lucille Roberts 1850 Sunrise Hwy Bay Shore NY, 11706 (631) 206-2122 | ||