| CASUAL DINING FOR THE KITCHEN CORP.Southampton, NY · Active | Southampton, NY | Corporation | Oct 16, 1985 | Active |
| KEITH'S LAWNMOWING-LANDSCAPING, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jun 11, 1985 | Active |
| SOUTHAMPTON VILLAGE LATCH INN, INC.Southampton, NY · Active | Southampton, NY | Corporation | May 21, 1985 | Active |
| EAST END ALLIANCE CORPORATIONSouthampton, NY · Active | Southampton, NY | Corporation | Apr 15, 1985 | Active |
| L&EJ COMMUNICATIONS INC.Southampton, NY · Active | Southampton, NY | Corporation | Mar 13, 1985 | Active |
| PECONIC FIRE EQUIPMENT DISTRIBUTORS, INC.Southampton, NY · Active | Southampton, NY | Corporation | Feb 5, 1985 | Active |
| PECONIC MARINA, INC.Southampton, NY · Active | Southampton, NY | Corporation | Feb 5, 1985 | Active |
| CLOTHES MINDED, INC.Southampton, NY · Active | Southampton, NY | Corporation | Dec 17, 1984 | Active |
| BONAC CAPITAL CORP.Southampton, NY · Active | Southampton, NY | Corporation | Feb 29, 1984 | Active |
| TARGET PEST CONTROL INC.Southampton, NY · Active | Southampton, NY | Corporation | Feb 21, 1984 | Active |
| TOWN AND COUNTRY SOUTHAMPTON, INC.Southampton, NY · Active | Southampton, NY | Corporation | Aug 8, 1983 | Active |
| TED'S EAST END MARKET, LTD.Southampton, NY · Active | Southampton, NY | Corporation | Jun 24, 1983 | Active |
| CLIFF'S PAINTS, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jan 31, 1983 | Active |
| BREAD & BUTTER INC.Southampton, NY · Active | Southampton, NY | Corporation | Jan 20, 1983 | Active |
| SAILACTION, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jan 13, 1983 | Active |
| J.T. LAVINIO & SON, INC.Southampton, NY · Active | Southampton, NY | Corporation | Sep 15, 1982 | Active |
| KEVIN HARRINGTON PLUMBING & HEATING, INC.Southampton, NY · Active | Southampton, NY | Corporation | Sep 2, 1982 | Active |
| OMNIHEALTH & RACQUET CLUB, INC.Southampton, NY · Active | Southampton, NY | Corporation | Aug 9, 1982 | Active |
| BRIAN MERINGOLA CONTRACTING, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jul 9, 1982 | Active |
| NORTHUMBERLAND ENTERPRISES CORP.Southampton, NY · Active | Southampton, NY | Corporation | Apr 9, 1982 | Active |
| SCHMIDT BROS. PRODUCE CO., INC.Southampton, NY · Active | Southampton, NY | Corporation | Mar 8, 1982 | Active |
| OLD TOWN CROSSING, INC.Southampton, NY · Active | Southampton, NY | Corporation | Nov 12, 1981 | Active |
| BARRY L. STRAUSS, M.D., P.C.Southampton, NY · Active | Southampton, NY | Corporation | Nov 5, 1981 | Active |
| J.A.M.C.O. AUTO PARTS INC.Southampton, NY · Active | Southampton, NY | Corporation | Jul 31, 1981 | Active |
| CALLOS BUILDERS, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jun 11, 1981 | Active |
| MY SOLITUDE, LTD.Southampton, NY · Active | Southampton, NY | Corporation | Feb 23, 1981 | Active |
| WE LEAD THE HUNT, LTD.Southampton, NY · Active | Southampton, NY | Corporation | Aug 11, 1980 | Active |
| INTER-SCIENCE RESEARCH ASSOCIATES, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jun 3, 1980 | Active |
| THE ORNSTEIN GROUP INC.Southampton, NY · Active | Southampton, NY | Corporation | Dec 20, 1978 | Active |
| GABANI, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jun 28, 1978 | Active |
| S.H.A. PROPERTIES, INC.Southampton, NY · Active | Southampton, NY | Corporation | Apr 20, 1978 | Active |
| BROWN & VERSAGGI CONTRACTING INC.Southampton, NY · Active | Southampton, NY | Corporation | Mar 23, 1978 | Active |
| ESSAY ENERGY SYSTEMS, LTD.Southampton, NY · Active | Southampton, NY | Corporation | Nov 2, 1977 | Active |
| STORMS MOTORS, INC.Southampton, NY · Active | Southampton, NY | Corporation | Sep 30, 1977 | Active |
| PRAG ENTERPRISES, INC.Southampton, NY · Active | Southampton, NY | Corporation | May 19, 1977 | Active |
| ROY LICHTENSTEIN II, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jan 4, 1977 | Active |
| AMERICAN TREE CARE INC.Southampton, NY · Active | Southampton, NY | Corporation | Aug 20, 1976 | Active |
| SWEENEY'S AUTO & MARINE UPHOLSTERY, INC.Southampton, NY · Active | Southampton, NY | Corporation | May 3, 1976 | Active |
| SOUTHAMPTON VILLAGE MOTEL, INC.Southampton, NY · Active | Southampton, NY | Corporation | Feb 19, 1976 | Active |
| SUBURBAN AUTO SERVICE, INC.Southampton, NY · Active | Southampton, NY | Corporation | Dec 17, 1975 | Active |
| SANDPEBBLE BUILDERS, INC.Southampton, NY · Active | Southampton, NY | Corporation | Sep 30, 1975 | Active |
| NARDY PEST CONTROL, INC.Southampton, NY · Active | Southampton, NY | Corporation | Dec 24, 1974 | Active |
| DELALIO COAL & STONE CO., INC.Southampton, NY · Active | Southampton, NY | Corporation | Nov 14, 1974 | Active |
| HARDY PLUMBING, HEATING & AIR CONDITIONING, INC.Southampton, NY · Active | Southampton, NY | Corporation | May 15, 1974 | Active |
| SOUTHAMPTON WIRELESS, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jan 28, 2005 | Active |
| CROMONO INTERNATIONAL, INC.Southampton, NY · Active | Southampton, NY | Corporation | Jul 13, 2015 | Active |
| JOHN F. O'BRIEN, AIA, P.C.Southampton, NY · Active | Southampton, NY | Corporation | Jun 12, 2014 | Active |
| TWIN FORKS FUEL, INC.Southampton, NY · Active | Southampton, NY | Corporation | Oct 11, 2012 | Active |
| FERNANDO'S HOME IMPROVEMENT INC.Southampton, NY · Active | Southampton, NY | Corporation | Feb 9, 2010 | Active |
| SIERRA GARDENS, INC.Southampton, NY · Active | Southampton, NY | Corporation | Dec 10, 2009 | Active |