| T.G.M., INC.Location not reported, CT · Dissolved | Location not reported, CT | Corporation | Feb 13, 1985 | Dissolved |
| CCB, LLCDurham, CT · Forfeited | Durham, CT | LLC | Oct 20, 1998 | Forfeited |
| BRENNAN'S BAKERY & ICE CREAM, LLCDurham, CT · Forfeited | Durham, CT | LLC | May 30, 2001 | Forfeited |
| LATITALIA GROUP CORPORATIONLocation not reported, CT · Withdrawn | Location not reported, CT | Corporation | Jul 26, 2002 | Withdrawn |
| THOMAS BRENNAN ASSOCIATES, LLCEast Hartford, CT · Forfeited | East Hartford, CT | LLC | Jul 9, 2003 | Forfeited |
| The Pilot House Foundation INCFairfield, CT · Active | Fairfield, CT | Corporation | Sep 25, 2006 | Active |
| 3115 FAIRFIELD AVENUE, LLCFairfield, CT · Forfeited | Fairfield, CT | LLC | Nov 28, 2006 | Forfeited |
| 3135 FAIRFIELD AVENUE, LLCFairfield, CT · Dissolved | Fairfield, CT | LLC | Nov 28, 2006 | Dissolved |
| 30 CLARKSON STREET, LLCFairfield, CT · Forfeited | Fairfield, CT | LLC | Nov 28, 2006 | Forfeited |
| 3129 FAIRFIELD AVENUE, LLCFairfield, CT · Dissolved | Fairfield, CT | LLC | Nov 28, 2006 | Dissolved |
| BRENNANMAC, LLCNorwalk, CT · Dissolved | Norwalk, CT | LLC | Jan 30, 2013 | Dissolved |
| CHUBBYLOVE, LLCMilford, CT · Dissolved | Milford, CT | LLC | Feb 5, 2013 | Dissolved |
| TIMELESS HOSPITALITY GROUP,LLCLocation not reported, CT · Forfeited | Location not reported, CT | LLC | Feb 15, 2013 | Forfeited |
| RIVAL & FRIENDS, LLCNorwalk, CT · Forfeited | Norwalk, CT | LLC | May 31, 2013 | Forfeited |
| SPREAD OUT, LLCNorwalk, CT · Forfeited | Norwalk, CT | LLC | May 31, 2013 | Forfeited |
| AV REMODELING, LLCEaston, CT · Dissolved | Easton, CT | LLC | Jul 22, 2013 | Dissolved |
| T & T5, LLCStamford, CT · Dissolved | Stamford, CT | LLC | Jan 19, 2016 | Dissolved |
| Pegasus Manufacturing, LLCMiddletown, CT · Active | Middletown, CT | LLC | Mar 1, 2016 | Active |
| TMB57, LLCStamford, CT · Dissolved | Stamford, CT | LLC | Jun 15, 2016 | Dissolved |
| TMB 1959, LLCStamford, CT · Forfeited | Stamford, CT | LLC | Mar 8, 2019 | Forfeited |
| TK INVESTMENTS, LLCRidgefield, CT · Active | Ridgefield, CT | LLC | Oct 7, 2020 | Active |
| KTB INVESTMENTS, LLCRidgefield, CT · Active | Ridgefield, CT | LLC | Dec 3, 2020 | Active |
| 757 Warrenville Rd, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Nov 22, 2021 | Active |
| 12 Jude Ln, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Nov 22, 2021 | Active |
| Thomas E. Brennan, Attorney-at-Law, LLCStratford, CT · Active | Stratford, CT | LLC | Jul 16, 2022 | Active |
| East Pearl Properties LLCWest Hartland, CT · Active | West Hartland, CT | LLC | Nov 10, 2023 | Active |
| samohT Studio LLCStamford, CT · Active | Stamford, CT | LLC | May 27, 2025 | Active |