| TRIPLE EAGLE GROUP, INC.Brooksville, FL · Active | Brooksville, FL | Corporation | Oct 13, 2011 | Active |
| HART HOMES LLCFort Lauderdale, FL · Active | Fort Lauderdale, FL | LLC | Aug 5, 2016 | Active |
| WHOLE HARTED STUDIOS LLCMount Dora, FL · Active | Mount Dora, FL | LLC | Dec 9, 2013 | Active |
| SHIP SHAPE PROPERTY RESOURCE, LLCPanama City, FL · Active | Panama City, FL | LLC | Aug 9, 2021 | Active |
| INTRACOASTAL OASIS HOMES, LLCSarasota, FL · Active | Sarasota, FL | LLC | Jan 22, 2025 | Active |
| M.J. HART CONSTRUCTION, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | Oct 19, 1974 | Inactive |
| HART ENGINEERING, INC.Palm Beach Gardens, FL · Inactive | Palm Beach Gardens, FL | Corporation | Feb 13, 1979 | Inactive |
| KLIM INTERNATIONAL SERVICES, INC.Coral Gables, FL · Inactive | Coral Gables, FL | Corporation | Jul 20, 1988 | Inactive |
| HAMILTON & STRATTON COMPANYCoral Gables, FL · Inactive | Coral Gables, FL | Corporation | Jan 11, 1989 | Inactive |
| UP TO THE SKY INVESTMENTS LLCWest Palm Beach, FL · Inactive | West Palm Beach, FL | LLC | Jan 8, 2004 | Inactive |
| CENTRAL FLORIDA LANDBANK LLCOrlando, FL · Inactive | Orlando, FL | LLC | Dec 19, 2005 | Inactive |
| LETALI GROUP LLCSunrise, FL · Inactive | Sunrise, FL | LLC | Dec 31, 2007 | Inactive |
| FLORIDA E & M, LLCMiramar, FL · Inactive | Miramar, FL | LLC | Mar 4, 2008 | Inactive |
| PANAMA GROUP, LLCRoyal Palm Beach, FL · Inactive | Royal Palm Beach, FL | LLC | Sep 6, 2018 | Inactive |
| PANAMA GROUP HOLDINGS, LLCRoyal Palm Beach, FL · Inactive | Royal Palm Beach, FL | LLC | Sep 6, 2018 | Inactive |
| TROPICAL OASIS CAR WASH, LLCRoyal Palm Beach, FL · Inactive | Royal Palm Beach, FL | LLC | Sep 6, 2018 | Inactive |
| HART-BUILT HOMES, INC.Inverness, FL · Inactive | Inverness, FL | Corporation | Apr 11, 1988 | Inactive |
| FLORIDA MECHANICAL SERVICES, INC.Umatilla, FL · Inactive | Umatilla, FL | Corporation | Dec 8, 2003 | Inactive |
| MICHAEL HART INVESTMENT PROPERTIES, INC.Miami, FL · Inactive | Miami, FL | Corporation | Dec 27, 2006 | Inactive |
| HART INTERNATIONAL, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | Jan 25, 1993 | Inactive |
| SCALE MODELS, ARTS, AND TECHNOLOGIES, INC.N. Miami Beach, FL · Active | N. Miami Beach, FL | Corporation | Jul 25, 1995 | Active |
| M H D ENTERPRISES, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Dec 9, 1997 | Inactive |
| THERMOPRO TECHNOLOGIES, INC.Miami Beach, FL · Inactive | Miami Beach, FL | Corporation | Mar 16, 1992 | Inactive |