| GUILFORD FUNERAL HOME, INCORPORATEDGuilford, CT · Active | Guilford, CT | Corporation | Apr 20, 1960 | Active |
| TGA, INC.Guilford, CT · Dissolved | Guilford, CT | Corporation | Feb 16, 1968 | Dissolved |
| ZENITH HEARING AID CENTERS, INC.Guilford, CT · Active | Guilford, CT | Corporation | May 31, 1968 | Active |
| HURCULES CONSTRUCTION CORP.Guilford, CT · Dissolved | Guilford, CT | Corporation | Mar 18, 1964 | Dissolved |
| INDUSTRIAL INVESTORS, INCORPORATEDGuilford, CT · Dissolved | Guilford, CT | Corporation | Mar 21, 1961 | Dissolved |
| J. J. RUSSO & SON CONSTRUCTION, INC.Guilford, CT · Active | Guilford, CT | Corporation | Mar 24, 1971 | Active |
| J.J. SULLIVAN, INCORPORATEDGuilford, CT · Active | Guilford, CT | Corporation | Jun 30, 1949 | Active |
| JOSEPH J. D'AMICO, JR., INCORPORATEDGuilford, CT · Dissolved | Guilford, CT | Corporation | Jun 5, 1969 | Dissolved |
| KEAT-JIN LEE, M.D., F.A.C.S., P.C.Guilford, CT · Active | Guilford, CT | Corporation | Dec 2, 1974 | Active |
| SHORELINE REAL ESTATE COMPANYGuilford, CT · Active | Guilford, CT | Corporation | Nov 18, 1976 | Active |
| LAWRENCE ASSOCIATES, INC.Guilford, CT · Dissolved | Guilford, CT | Corporation | Jun 19, 1970 | Dissolved |
| LEETE BROTHERS, INC.Guilford, CT · Active | Guilford, CT | Corporation | Nov 12, 1968 | Active |
| 115 STATE SQUARE REALTY CO.Guilford, CT · Dissolved | Guilford, CT | Corporation | Feb 1, 1973 | Dissolved |
| MANNIX FAMILY MOTORS, INC.Guilford, CT · Dissolved | Guilford, CT | Corporation | May 26, 1970 | Dissolved |
| MANTHEY BUILDERS AND REMODELERS, INC.Guilford, CT · Forfeited | Guilford, CT | Corporation | Dec 18, 1972 | Forfeited |
| MONTESI MOTORS, INCORPORATEDGuilford, CT · Dissolved | Guilford, CT | Corporation | Aug 5, 1963 | Dissolved |
| MOROSO PERFORMANCE PRODUCTS, INC.Guilford, CT · Active | Guilford, CT | Corporation | Sep 19, 1968 | Active |
| NEW ENGLAND MARITIME CORP.Guilford, CT · Merged | Guilford, CT | Corporation | Mar 30, 1971 | Merged |
| NEW HAVEN RESTORATION COMPANY, INC.Guilford, CT · Forfeited | Guilford, CT | Corporation | Feb 4, 1964 | Forfeited |
| NORTH HAVEN GLASS COMPANY, INC.Guilford, CT · Dissolved | Guilford, CT | Corporation | Sep 8, 1975 | Dissolved |
| OBSTETRICS & GYNECOLOGY ASSOCIATES, P.C.Guilford, CT · Dissolved | Guilford, CT | Corporation | Oct 4, 1972 | Dissolved |
| PAGE HARDWARE & APPLIANCE CO.Guilford, CT · Active | Guilford, CT | Corporation | Oct 4, 1963 | Active |
| PAGE INSURANCE, LTD.Guilford, CT · Active | Guilford, CT | Corporation | Apr 5, 1972 | Active |
| PALMAS PRINTING COMPANY, INC.Guilford, CT · Forfeited | Guilford, CT | Corporation | Jul 26, 1974 | Forfeited |
| RADIOLOGY CONSULTANTS, P.C.Guilford, CT · Active | Guilford, CT | Corporation | Jun 7, 1977 | Active |
| RIVER STREET STORAGE CORPORATION THENew Haven, CT · Dissolved | New Haven, CT | Corporation | Oct 25, 1948 | Dissolved |
| ROYAL PRINTING SERVICE INC.Guilford, CT · Dissolved | Guilford, CT | Corporation | Mar 12, 1965 | Dissolved |
| RUSSELL W. WALDO, PROFESSIONAL ENGINEER AND LAND SURVEYOR AND ASSOCIATES, P.C.Guilford, CT · Dissolved | Guilford, CT | Corporation | Nov 5, 1971 | Dissolved |
| RUSSO OF BRANFORD, INC.Guilford, CT · Dissolved | Guilford, CT | Corporation | Jul 2, 1974 | Dissolved |
| SACHEM INN, LTD. THEGuilford, CT · Dissolved | Guilford, CT | Corporation | Jan 30, 1970 | Dissolved |
| SACHEM'S HEAD YACHT CLUB CORPORATIONGuilford, CT · Active | Guilford, CT | Corporation | Jan 17, 1898 | Active |
| SHORE COLONY COMPANY THEGuilford, CT · Active | Guilford, CT | Corporation | Jan 10, 1913 | Active |
| BARBER AND SUN, INCORPORATEDGuilford, CT · Dissolved | Guilford, CT | Corporation | Dec 31, 1975 | Dissolved |
| TEMPLE SURGICAL CENTER, INC.Guilford, CT · Dissolved | Guilford, CT | Corporation | Aug 8, 1975 | Dissolved |
| TYNDALL MOTOR CAR COMPANYGuilford, CT · Dissolved | Guilford, CT | Corporation | Feb 7, 1973 | Dissolved |
| 78 Saltonstall CorporationGuilford, CT · Dissolved | Guilford, CT | Corporation | Dec 28, 1967 | Dissolved |
| WHITFIELD ASSOCIATES, LIMITEDGuilford, CT · Active | Guilford, CT | Corporation | Nov 15, 1971 | Active |
| WHITFIELD REAL ESTATE, INCORPORATEDGuilford, CT · Forfeited | Guilford, CT | Corporation | Aug 12, 1974 | Forfeited |
| WILLIAM BLYTHE & SON, INC.Guilford, CT · Dissolved | Guilford, CT | Corporation | Feb 16, 1971 | Dissolved |
| THOMAS P. PETRICK, D.M.D. AND THEODORE J. KATZ, D.D.S., P.C.Guilford, CT · Dissolved | Guilford, CT | Corporation | Aug 5, 1974 | Dissolved |
| WILLIAM PINCHBECK INCORPORATEDGuilford, CT · Active | Guilford, CT | Corporation | Aug 20, 1936 | Active |
| YANKEE MACHINE CORP.Guilford, CT · Dissolved | Guilford, CT | Corporation | May 27, 1976 | Dissolved |
| INDIAN COVE ASSOCIATION, THEGuilford, CT · Active | Guilford, CT | Corporation | Oct 28, 1969 | Active |
| CLEAR LAKE IMPROVEMENT ASSOCIATION, INCORPORATEDGuilford, CT · Active | Guilford, CT | Corporation | Jul 14, 1949 | Active |
| VISITING NURSE ASSOCIATION COMMUNITY HEALTHCARE, INC.Guilford, CT · Merged | Guilford, CT | Corporation | Jan 31, 1922 | Merged |
| CHIMNEY CORNER PARK ASSOCIATION, INCORPORATEDGuilford, CT · Active | Guilford, CT | Corporation | May 2, 1966 | Active |
| COLUMBUS CLUB ASSOCIATION OF GUILFORD, CONNECTICUT, INCORPORATEDGuilford, CT · Active | Guilford, CT | Corporation | Jan 10, 1957 | Active |
| COMMUNITY NURSERY SCHOOL INCORPORATED,THEGuilford, CT · Active | Guilford, CT | Corporation | Sep 23, 1955 | Active |
| CONNECTICUT ASSOCIATION OF DEALERS IN ANTIQUES, INC., THEGuilford, CT · Dissolved | Guilford, CT | Corporation | Dec 10, 1975 | Dissolved |
| CONNECTICUT COUNCIL FOR HUMANE EDUCATION, INC., THEGuilford, CT · Active | Guilford, CT | Corporation | Feb 3, 1976 | Active |