| MESSAGE CENTER, INC.Hartford, CT · Dissolved | Hartford, CT | Corporation | Mar 15, 1961 | Dissolved |
| MESSAGE TAKERS, INC. THEHartford, CT · Dissolved | Hartford, CT | Corporation | Nov 28, 1977 | Dissolved |
| MESSAGE CENTER CELLULAR, INC.Location not reported, CT · Dissolved | Location not reported, CT | Corporation | Sep 15, 1982 | Dissolved |
| MESSAGE CENTER BEEPERS, INC.Hartford, CT · Dissolved | Hartford, CT | Corporation | Feb 14, 1985 | Dissolved |
| ZACHS FAMILY FOUNDATION, INC. THEHartford, CT · Active | Hartford, CT | Corporation | Jul 10, 1985 | Active |
| CELLULAR SERVICE BUREAU, INC.Location not reported, CT · Dissolved | Location not reported, CT | Corporation | Aug 5, 1985 | Dissolved |
| MESSAGE CENTER USA, INC.Hartford, CT · Dissolved | Hartford, CT | Corporation | Mar 30, 1994 | Dissolved |
| ZIPCALL LONG DISTANCE, INC.Hartford, CT · Withdrawn | Hartford, CT | Corporation | May 23, 1994 | Withdrawn |
| HMZ EVANSVILLE, INC.Hartford, CT · Dissolved | Hartford, CT | Corporation | Dec 19, 1994 | Dissolved |
| HMZ MADISON, INC.Hartford, CT · Active | Hartford, CT | Corporation | Dec 19, 1994 | Active |
| HMZ SAN JUAN, INC.Hartford, CT · Dissolved | Hartford, CT | Corporation | Dec 19, 1994 | Dissolved |
| MASSACHUSETTS-CONNECTICUT MOBILE TELEPHONE CO., INC.Hartford, CT · Dissolved | Hartford, CT | Corporation | Dec 21, 1994 | Dissolved |
| PCS ASSOCIATES II, INC.Hartford, CT · Dissolved | Hartford, CT | Corporation | Jun 9, 1995 | Dissolved |
| ZACHS FAMILY LIMITED PARTNERSHIP NUMBER ONEHartford, CT · Cancelled | Hartford, CT | Partnership | Dec 12, 1995 | Cancelled |
| ZIPWAVE, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Aug 22, 1996 | Dissolved |
| MESSAGE CENTER MANAGEMENT, INC.Hartford, CT · Withdrawn | Hartford, CT | Corporation | Jun 25, 1997 | Withdrawn |
| ZIPLINK, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | May 3, 1999 | Withdrawn |
| ZAFA I LLCHartford, CT · Dissolved | Hartford, CT | LLC | Jun 17, 1999 | Dissolved |
| ZAFA, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Nov 5, 1999 | Dissolved |
| ZAFA III, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Nov 5, 1999 | Dissolved |
| ZAFA IV, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Nov 5, 1999 | Dissolved |
| ZAFA-EZ, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Nov 5, 1999 | Dissolved |
| ZAFA-JZ, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Nov 5, 1999 | Dissolved |
| ZAFA-WZ, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Nov 5, 1999 | Dissolved |
| ZAFA VII, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Nov 5, 1999 | Dissolved |
| ZAGCH, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Nov 5, 1999 | Dissolved |
| ZAFA TOWERS-PA, LLCHartford, CT · Merged | Hartford, CT | LLC | Dec 19, 2002 | Merged |
| ZAFA TOWERS-NY, LLCHartford, CT · Merged | Hartford, CT | LLC | Dec 19, 2002 | Merged |
| ZAFA TOWERS-VA, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Dec 19, 2002 | Dissolved |
| CAPITOL AVE., LLCHartford, CT · Dissolved | Hartford, CT | LLC | Dec 19, 2002 | Dissolved |
| COLVIN, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Dec 19, 2002 | Dissolved |
| MONTE, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Dec 19, 2002 | Dissolved |
| WATER, LLCHartford, CT · Merged | Hartford, CT | LLC | Dec 19, 2002 | Merged |
| WEST ROCK, LLCHartford, CT · Merged | Hartford, CT | LLC | Dec 19, 2002 | Merged |
| WOODLAND-36, LLCHartford, CT · Active | Hartford, CT | LLC | Dec 19, 2002 | Active |
| WOODLAND-40, LLCHartford, CT · Active | Hartford, CT | LLC | Dec 19, 2002 | Active |
| ZAFA TOWERS, LLCLocation not reported, CT · Dissolved | Location not reported, CT | LLC | Dec 19, 2002 | Dissolved |
| ZAFA VENTURES, LLCHartford, CT · Active | Hartford, CT | LLC | May 12, 2006 | Active |
| LOUISE ZACHS TRUST HOLDINGS, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Jan 30, 2007 | Dissolved |
| BLOOMFIELD TENNIS, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Apr 9, 2007 | Dissolved |
| ZAFA 700, INC.Hartford, CT · Dissolved | Hartford, CT | Corporation | Dec 3, 2007 | Dissolved |
| HMZ CONTRACTING, LLCHartford, CT · Active | Hartford, CT | LLC | May 11, 2009 | Active |
| HMZ ENERGY LLCHartford, CT · Dissolved | Hartford, CT | LLC | Apr 8, 2010 | Dissolved |
| 1 - 3 NECK ROAD, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Dec 16, 2010 | Dissolved |
| PARTRIDGE HOLLOW-181, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Mar 18, 2011 | Dissolved |
| ZAFA ACQUISITIONS LLCHartford, CT · Dissolved | Hartford, CT | LLC | Apr 6, 2011 | Dissolved |
| JHL LEDGER, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Feb 24, 2014 | Dissolved |
| MCM COMMUNICATIONS, LLCHartford, CT · Dissolved | Hartford, CT | LLC | Feb 8, 2017 | Dissolved |
| MCM FAIRFIELD, LLCHartford, CT · Withdrawn | Hartford, CT | LLC | Apr 18, 2018 | Withdrawn |
| 246 PERU ROAD, LLCHartford, CT · Active | Hartford, CT | LLC | Nov 7, 2019 | Active |