| ANSONIA STEEL FABRICATION COMPANY, INCORPORATEDBeacon Falls, CT · Active | Beacon Falls, CT | Corporation | Dec 29, 1955 | Active |
| BEACON HEIGHTS, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | May 25, 1970 | Active |
| JEMCO CORPORATIONBeacon Falls, CT · Active | Beacon Falls, CT | Corporation | May 4, 1967 | Active |
| LAUREL PARK, INCORPORATEDBeacon Falls, CT · Active | Beacon Falls, CT | Corporation | Oct 25, 1966 | Active |
| M. I. R., INC.Beacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Feb 10, 1971 | Forfeited |
| MURTHA ENTERPRISES, INC. THEBeacon Falls, CT · Active | Beacon Falls, CT | Corporation | Dec 30, 1966 | Active |
| PIONEER GAS CO INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Oct 16, 1947 | Active |
| CONNECTICUT BULK TRANSPORT, INC.Beacon Falls, CT · Merged | Beacon Falls, CT | Corporation | Oct 14, 1969 | Merged |
| STAMFORD DATA PROCESSING CORPORATIONBeacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Sep 11, 1969 | Dissolved |
| CENTER OF THE CIRCLE, INC. THEBeacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Jul 20, 1977 | Forfeited |
| BEACON HOSE COMPANY NUMBER ONE OF BEACON FALLS, INCORPORATEDBeacon Falls, CT · Active | Beacon Falls, CT | Corporation | Mar 27, 1930 | Active |
| CHESHIRE LIONS CLUB, INCORPORATEDBeacon Falls, CT · Active | Beacon Falls, CT | Corporation | Nov 5, 1956 | Active |
| LIONS CLUB OF BEACON FALLS, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Mar 13, 1964 | Active |
| NAUGATUCK VALLEY BEAGLE CLUB, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Sep 9, 1966 | Active |
| ROCK RIMMON GRANGE, NO 142,INCORPORATED THEBeacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Sep 26, 1946 | Dissolved |
| SILVER CITY FLYING CLUB, INCORPORATED THEBeacon Falls, CT · Active | Beacon Falls, CT | Corporation | Nov 8, 1946 | Active |
| BILL-CARR BUILDERS, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Oct 27, 1977 | Dissolved |
| T. & J. MOLDING, INC.Beacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | May 22, 1978 | Forfeited |
| WOODLAND HOMES, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Jun 21, 1978 | Dissolved |
| CAN-AME INC.Beacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Jul 31, 1978 | Forfeited |
| ALLENIR INVESTMENT CORPORATIONBeacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Aug 2, 1977 | Dissolved |
| RUBBER AVENUE ENTERPRISES, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Aug 17, 1977 | Active |
| CORCORAN'S TRANSPORTATION, INC.Beacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Feb 28, 1936 | Forfeited |
| KNAPP CONTAINER,INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | May 23, 1934 | Active |
| TRU MAC, INC.Beacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Apr 30, 1980 | Forfeited |
| INDUSTRIAL FLAME CUTTING, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Jul 16, 1980 | Active |
| LEGION GRAVEL ASSOCIATION, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Nov 5, 1981 | Dissolved |
| LAUREL LEDGE SCHOOL PARENT-TEACHER ORGANIZATION, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Dec 16, 1981 | Active |
| AMERICAN HAND, INC. THEStamford, CT · Dissolved | Stamford, CT | Corporation | Apr 18, 1983 | Dissolved |
| J-CON, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | May 4, 1983 | Dissolved |
| NEW ENGLAND THEATRE SERVICE, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Jul 1, 1983 | Active |
| METCALF PAVING CO., INC. THEBeacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Jul 22, 1983 | Forfeited |
| BENEFICIAL INVESTIGATION SERVICE, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Jul 29, 1983 | Dissolved |
| FLIGHT STAR DEVICES, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | May 1, 1984 | Dissolved |
| MAGNA STEEL SALES, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Jun 4, 1984 | Active |
| FINE ARTS RADIO, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Jan 21, 1985 | Active |
| SHEEHY TRANSPORT, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Mar 1, 1985 | Active |
| ARCTIC AIR, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Mar 1, 1985 | Active |
| R.J. AUTOMOTIVE, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Mar 14, 1985 | Dissolved |
| HIGHLAND CONDOMINIUM ASSOCIATION, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Dec 26, 1986 | Active |
| GRENCO SUPPLY COMPANY, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Feb 24, 1987 | Dissolved |
| FALLS ENTERTAINMENT ENTERPRISES, INC.Beacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Apr 24, 1987 | Forfeited |
| UNITED DAY SCHOOL, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Jun 10, 1987 | Active |
| JD PAVING AND SEALING, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Jun 12, 1987 | Dissolved |
| C. EDWARDS CO.Beacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Sep 16, 1987 | Forfeited |
| PEL MEL, INC.Beacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Feb 23, 1988 | Forfeited |
| PINES BRIDGE ASSOCIATES, INC.Beacon Falls, CT · Active | Beacon Falls, CT | Corporation | Mar 31, 1988 | Active |
| R.A.M. TOOL DIE & DESIGN COMPANY, INCORPORATEDBeacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Jun 2, 1988 | Dissolved |
| EASTERN EQUIPMENT BROKERS, INC.Beacon Falls, CT · Forfeited | Beacon Falls, CT | Corporation | Sep 12, 1989 | Forfeited |
| LEEDER HILL INDUSTRIAL CONDOMINIUM ASSOCIATION, INC.Beacon Falls, CT · Dissolved | Beacon Falls, CT | Corporation | Dec 13, 1989 | Dissolved |