| BERKSHIRE INDUSTRIAL CORPORATIONBethel, CT · Active | Bethel, CT | Corporation | Nov 4, 1968 | Active |
| STEINER, INCORPORATEDBethel, CT · Active | Bethel, CT | Corporation | May 19, 1952 | Active |
| TOWN AND COUNTRY, INCORPORATEDBethel, CT · Active | Bethel, CT | Corporation | May 11, 1961 | Active |
| VILLAGE SQUARE, INC.Bethel, CT · Active | Bethel, CT | Corporation | Feb 2, 1962 | Active |
| KAMAN AEROSPACE INTERNATIONAL CORPORATIONBloomfield, CT · Merged | Bloomfield, CT | Corporation | May 9, 1984 | Merged |
| FAS CORPORATIONLocation not reported, CT · Dissolved | Location not reported, CT | Corporation | Oct 2, 1991 | Dissolved |
| BERKSHIRE NORTH, LLCBethel, CT · Active | Bethel, CT | LLC | Nov 25, 1994 | Active |
| ONE PARK RIDGE ROAD, LLCBethel, CT · Active | Bethel, CT | LLC | Feb 3, 1999 | Active |
| TWO PARKLAWN DRIVE, LLCBethel, CT · Dissolved | Bethel, CT | LLC | Apr 29, 1999 | Dissolved |
| OLIVIA STEINER STATUTORY TRUSTBethel, CT · Active | Bethel, CT | Other | Nov 21, 2000 | Active |
| PARKWOOD ESTATES HOMEOWNERS ASSOCIATION, INC.Brookfield, CT · Active | Brookfield, CT | Corporation | May 14, 2001 | Active |
| DUCK FARM, LLCBethel, CT · Dissolved | Bethel, CT | LLC | Jun 18, 2001 | Dissolved |
| TOWN & COUNTRY MAINTENANCE, LLCBethel, CT · Active | Bethel, CT | LLC | Mar 18, 2002 | Active |
| INTERSTATE BUSINESS CENTER LLCBethel, CT · Dissolved | Bethel, CT | LLC | Feb 7, 2003 | Dissolved |
| THE BERKSHIRE MASTER PARTNERSHIP, LLCBethel, CT · Active | Bethel, CT | LLC | Dec 4, 2003 | Active |
| RG PARTNERSHIP LLCBethel, CT · Active | Bethel, CT | LLC | May 28, 2008 | Active |
| 401 FEDERAL ROAD LLCBethel, CT · Active | Bethel, CT | LLC | Oct 21, 2008 | Active |
| INTERSTATE BUSINESS CENTER ASSOCIATION, INC.Bethel, CT · Dissolved | Bethel, CT | Corporation | Apr 17, 2012 | Dissolved |
| 195 FEDERAL ROAD LLCBethel, CT · Active | Bethel, CT | LLC | May 17, 2013 | Active |
| 17-23 BERKSHIRE BOULEVARD LLCBethel, CT · Active | Bethel, CT | LLC | Dec 6, 2013 | Active |
| 2-6 RESEARCH DRIVE LLCBethel, CT · Active | Bethel, CT | LLC | Dec 6, 2013 | Active |
| RG EQUIPMENT LEASING, LLCBethel, CT · Active | Bethel, CT | LLC | May 7, 2014 | Active |
| PRINDLE LANE LLCBethel, CT · Active | Bethel, CT | LLC | Dec 3, 2014 | Active |
| 15 BERKSHIRE BLVD, LLCBethel, CT · Active | Bethel, CT | LLC | Jul 6, 2017 | Active |
| 3 BERKSHIRE BLVD, LLCBethel, CT · Active | Bethel, CT | LLC | Jul 6, 2017 | Active |
| 117 OLD STATE ROAD, LLCBethel, CT · Active | Bethel, CT | LLC | Mar 23, 2021 | Active |
| 401 MONROE TURNPIKE, LLCBethel, CT · Active | Bethel, CT | LLC | Apr 14, 2022 | Active |
| 73 BENEDICT ROAD, LLCBethel, CT · Active | Bethel, CT | LLC | Apr 11, 2024 | Active |
| 111 PARK RIDGE ROAD, LLCBethel, CT · Active | Bethel, CT | LLC | Jul 31, 2024 | Active |
| 11 PARKLAWN DRIVE, LLCBethel, CT · Active | Bethel, CT | LLC | Oct 24, 2024 | Active |
| 101A PARK RIDGE ROAD, LLCBethel, CT · Active | Bethel, CT | LLC | Oct 25, 2024 | Active |