| SESSIONS COMPANY, INCORPORATEDLocation not reported, CT · Forfeited | Location not reported, CT | Corporation | Jul 8, 1959 | Forfeited |
| CASLE CORPORATION THELocation not reported, CT · Active | Location not reported, CT | Corporation | Jan 30, 1981 | Active |
| BLOOMFIELD MEDICAL CENTER UNIT OWNERS ASSOCIATION, INC.Avon, CT · Dissolved | Avon, CT | Corporation | May 4, 1989 | Dissolved |
| RH MEDICAL CENTER ASSOCIATES LLCAvon, CT · Dissolved | Avon, CT | LLC | Mar 28, 1994 | Dissolved |
| NOVA ASSOCIATES LLCAvon, CT · Forfeited | Avon, CT | LLC | Dec 28, 1995 | Forfeited |
| 1060 DAY HILL ASSOCIATES, LLCAvon, CT · Dissolved | Avon, CT | LLC | Sep 14, 1998 | Dissolved |
| 4 NORTHWESTERN DRIVE ASSOCIATES, LLCAvon, CT · Dissolved | Avon, CT | LLC | Oct 20, 1999 | Dissolved |
| 704 HEBRON AVENUE ASSOCIATES, LLCAvon, CT · Dissolved | Avon, CT | LLC | Jun 5, 2000 | Dissolved |
| CANTON COMMERCE CENTER ASSOCIATES, LLCAvon, CT · Active | Avon, CT | LLC | Jun 30, 2000 | Active |
| CENTECH ASSOCIATES, LLCAvon, CT · Dissolved | Avon, CT | LLC | Jul 16, 2001 | Dissolved |
| 900 DAY HILL ASSOCIATES LLCAvon, CT · Dissolved | Avon, CT | LLC | Feb 21, 2002 | Dissolved |
| 150 COMMERCE ASSOCIATES LLCAvon, CT · Dissolved | Avon, CT | LLC | Sep 5, 2003 | Dissolved |
| 2 NORTHWESTERN DRIVE ASSOCIATES LLCAvon, CT · Dissolved | Avon, CT | LLC | Feb 18, 2004 | Dissolved |
| GAYLORD WELLNESS ASSOCIATES LLCAvon, CT · Dissolved | Avon, CT | LLC | Mar 28, 2005 | Dissolved |
| GATEWAY MEDICAL ASSOCIATES LLCGlastonbury, CT · Dissolved | Glastonbury, CT | LLC | Nov 23, 2005 | Dissolved |
| 80 FISHER MEDICAL ASSOCIATES, LLCGlastonbury, CT · Dissolved | Glastonbury, CT | LLC | May 18, 2007 | Dissolved |
| 533 COTTAGE GROVE ASSOCIATES, LLCAvon, CT · Dissolved | Avon, CT | LLC | Sep 18, 2007 | Dissolved |
| CROSSROADS MEDICAL CENTER LLCAvon, CT · Dissolved | Avon, CT | LLC | Mar 10, 2011 | Dissolved |
| NB MEDICAL ASSOCIATES LLCAvon, CT · Dissolved | Avon, CT | LLC | Feb 2, 2012 | Dissolved |
| 15 NORTH MAIN ASSOCIATES LLCAvon, CT · Merged | Avon, CT | LLC | Apr 23, 2013 | Merged |
| 406 MEDICAL ASSOCIATES LLCAvon, CT · Dissolved | Avon, CT | LLC | Jul 30, 2013 | Dissolved |
| QUEEN STREET MEDICAL ASSOCIATES LLCAvon, CT · Active | Avon, CT | LLC | Sep 25, 2014 | Active |
| CHESHIRE MEDICAL ASSOCIATES LLCAvon, CT · Dissolved | Avon, CT | LLC | Apr 12, 2017 | Dissolved |
| BLOOMFIELD MEDICAL CENTER ASSOCIATES LLCAvon, CT · Dissolved | Avon, CT | LLC | Feb 10, 2020 | Dissolved |
| WINSTED MEDICAL ASSOCIATES TWO LLCAvon, CT · Dissolved | Avon, CT | LLC | Nov 17, 2021 | Dissolved |