| 1 5th Avenue Apartment Corp | 15 Avenue S Brooklyn, NY 11223-2437 | (212) 253-8324 |
| 1 Bond Street Condominium | 1 Bond St New York, NY 10012-2307 | (212) 228-3866 |
| 1 Mill St LLC | 1 Mill St Rhinebeck, NY 12572-1839 | (845) 876-1120 |
| 1 Million Homes Realty | 383 Remsen Ave Brooklyn, NY 11212 | (347) 627-9092 |
| 1 St Premier Realty Network | 8614 3rd Ave Brooklyn, NY 11209 | (718) 745-5792 |
| 10 Avenue P Condominium | 10 Avenue P Brooklyn, NY 11204-6053 | (718) 236-5876 |
| 10 Executive Park | 10 Executive Park Dr Albany, NY 12203 | (518) 482-8986 |
| 10 Hanover LLC | 10 Hanover Sq New York, NY 10005-3510 | (212) 747-0010 |
| 10 West End Avenue Condominium | 10 W End Ave New York, NY 10023-7826 | (212) 582-8632 |
| 100 76th Street Realty Company | 460 E 176th St Bronx, NY 10457 | (718) 583-5862 |
| 100 Fun For Line | 934 60th St Brooklyn, NY 11219 | (718) 436-8883 |
| 100 Realty | 1205 47th St Brooklyn, NY 11219 | (718) 854-1400 |
| 100 Sterling Condominiums | 100 Sterling Pl Brooklyn, NY 11217-3347 | (718) 623-3234 |
| 100 United Nations Plaza Condominium | 100 United Nations Plz New York, NY 10017-1713 | (212) 644-6703 |
| 100 West 18th Street Condo | 100 W 18th St New York, NY 10011-5473 | (212) 337-9607 |
| 1000 Northern Boulevard Company | 25 S Service Rd Ste 320 Jericho, NY 11753-1018 | (516) 997-4100 |
| 1001 Five Avenue Owners Incorporated | 1001 5th Ave New York, NY 10028-0107 | (212) 249-3373 |
| 101 Lafayette Plaza Corporation | 101 Lafayette Ave Brooklyn, NY 11217 | (718) 596-0708 |
| 101 W 24th St Condominium | 735 Avenue Of The Americas New York, NY 10010-2709 | (212) 645-2616 |
| 101 W 24th Street Condominium | 735 Avenue Of The Americas New York, NY 10010-2709 | (212) 645-2616 |
| 1012 Forty One LLC | 1012 41st St Brooklyn, NY 11219 | (718) 436-0492 |
| 1018 Development Company | 1022 E 163rd St Bronx, NY 10459 | (718) 893-3505 |
| 1018 Realty Corporation | 1018 39th St Brooklyn, NY 11219 | (718) 853-6226 |
| 102 Madison Street Condominum | 102 Madison St New York, NY 10002-7242 | (212) 240-9095 |
| 1025 42nd Street Condominium Association | 1025 42nd St Brooklyn, NY 11219-1202 | (718) 436-1321 |