| HUDSON RIVER DRILLING & BLASTING, INC.New York, NY · Active | New York, NY | Corporation | Jul 14, 1988 | Active |
| ZYGO CORPORATION, Colorado Authority Relinquished July 12, 2010Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Mar 9, 2001 | Withdrawn |
| Zygo Corporation, Delinquent September 1, 2015Location not reported, CO · Delinquent | Location not reported, CO | Corporation | Apr 19, 2012 | Delinquent |
| COOPER-ATKINS CORPORATIONMiddlefield, CT · Merged | Middlefield, CT | Corporation | Nov 30, 1960 | Merged |
| MAGEE COMPANYMiddlefield, CT · Active | Middlefield, CT | Corporation | Oct 1, 1975 | Active |
| EXECUTIVE SUITES AT 6 WAY ROAD, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Mar 8, 1954 | Dissolved |
| INDIAN SPRINGS GOLF CLUB, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Apr 14, 1966 | Active |
| L & I REFRIGERATION, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Sep 13, 1974 | Active |
| LYMAN FARM INCORPORATED, THEMiddlefield, CT · Active | Middlefield, CT | Corporation | Mar 31, 1949 | Active |
| RAMAR-HALL, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Mar 12, 1968 | Active |
| T.E.T. MFG. CO., INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Aug 31, 1971 | Active |
| XENELIS CONSTRUCTION CO, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Feb 2, 1971 | Active |
| COLUMBUS PARK BOCCI CLUB, INCORPORATED THEMiddlefield, CT · Forfeited | Middlefield, CT | Corporation | Mar 7, 1940 | Forfeited |
| CONNECTICUT ASSOCIATION OF ASSESSING OFFICERS, INC., THEMiddlefield, CT · Active | Middlefield, CT | Corporation | Mar 22, 1968 | Active |
| CONNECTICUT SOCIETY OF INTERNAL MEDICINE, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Oct 19, 1971 | Dissolved |
| INDEPENDENT DAY SCHOOL INCORPORATED, THEMiddlefield, CT · Active | Middlefield, CT | Corporation | Dec 18, 1959 | Active |
| MIDDLEFIELD VOLUNTEER FIRE COMPANY, INCORPORATED,THEMiddlefield, CT · Active | Middlefield, CT | Corporation | Mar 31, 1954 | Active |
| MIDDLESEX COUNTY FARM BUREAU, INCORPORATEDMiddlefield, CT · Active | Middlefield, CT | Corporation | Dec 27, 1917 | Active |
| JOHN J. NERDEN RTC CAMP, INC. THEMiddlefield, CT · Active | Middlefield, CT | Corporation | Mar 29, 1973 | Active |
| THREE B'S INC., THEMiddlefield, CT · Dissolved | Middlefield, CT | Corporation | Feb 5, 1974 | Dissolved |
| COMPREHENSIVE COMPUTER SERVICES, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Feb 3, 1978 | Active |
| R. E. F. MACHINE COMPANY, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Feb 3, 1978 | Active |
| DAYBREAK, CORP.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Aug 14, 1978 | Dissolved |
| DURHAM WOMAN'S CLUB, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Aug 23, 1974 | Dissolved |
| DYNO NOBEL NEW ENGLAND, INC.Middlefield, CT · Merged | Middlefield, CT | Corporation | Sep 13, 1956 | Merged |
| DAINTY-MAID, INCORPORATEDMiddlefield, CT · Dissolved | Middlefield, CT | Corporation | Jan 18, 1926 | Dissolved |
| CUSTOM CRAFT TRAILERS, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Nov 1, 1978 | Dissolved |
| POWERHOLD, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Jan 2, 1958 | Active |
| ATSIKI PIZZA, INC.Middlefield, CT · Forfeited | Middlefield, CT | Corporation | Dec 30, 1980 | Forfeited |
| MONTHEI BROTHERS ELECTRICAL CONTRACTORS, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | May 15, 1981 | Dissolved |
| JOSEPH A. HAVLICEK, M.D., P.C.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Aug 3, 1981 | Dissolved |
| QUALITY CENTERLESS GRINDING CORP.Middlefield, CT · Active | Middlefield, CT | Corporation | Oct 27, 1981 | Active |
| J. GUY LOMBARDO FOUNDATION, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Dec 23, 1981 | Dissolved |
| CUBETA'S, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Sep 16, 1983 | Dissolved |
| AUTO BODY SPECIALTIES, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Jan 4, 1984 | Dissolved |
| LANG AND CORONA, P.C.Middlefield, CT · Active | Middlefield, CT | Corporation | Sep 4, 1984 | Active |
| RED DOG SALOON CAFE, INC.Middlefield, CT · Forfeited | Middlefield, CT | Corporation | Sep 17, 1985 | Forfeited |
| TARSIL, INC.Middlefield, CT · Forfeited | Middlefield, CT | Corporation | Jun 5, 1986 | Forfeited |
| DURHAM FENCE COMPANY, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Jun 24, 1986 | Active |
| ROVER'S LODGE, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Sep 23, 1986 | Active |
| GAUDREAU MARINE REALTY CORPORATIONMiddlefield, CT · Dissolved | Middlefield, CT | Corporation | Nov 28, 1986 | Dissolved |
| D.E.W. ELECTRIC, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Feb 19, 1987 | Dissolved |
| LOC CORP.Middlefield, CT · Active | Middlefield, CT | Corporation | May 5, 1987 | Active |
| WEPCO PLASTICS, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Aug 4, 1987 | Active |
| BITTERSWEET RIDGE ASSOCIATION, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Aug 27, 1987 | Active |
| BETTER HOMES WINDOWS & SIDING, INCORPORATEDMiddlefield, CT · Dissolved | Middlefield, CT | Corporation | Oct 28, 1987 | Dissolved |
| FERRETTI ASSOCIATES, INC.Middlefield, CT · Dissolved | Middlefield, CT | Corporation | Jun 24, 1988 | Dissolved |
| NEW GUIDA'S RESTAURANT, INC. THEMiddlefield, CT · Active | Middlefield, CT | Corporation | Aug 30, 1988 | Active |
| LAND MANAGEMENT, INC.Middlefield, CT · Active | Middlefield, CT | Corporation | Aug 30, 1988 | Active |
| BYSIEWICZ CORPORATION THEMiddlefield, CT · Dissolved | Middlefield, CT | Corporation | Aug 11, 1988 | Dissolved |