| BLACK SANDS EXPLORATION LLCCoconut Creek, FL · Active | Coconut Creek, FL | LLC | Oct 25, 2024 | Active |
| HART PRO MANAGEMENT SERVICES, LLCOrmond Beach, FL · Active | Ormond Beach, FL | LLC | Feb 13, 2012 | Active |
| PAUL AND STACEY HART PASarasota, FL · Active | Sarasota, FL | Corporation | Sep 15, 2020 | Active |
| HART TO HART INVESTMENTS LLCSarasota, FL · Active | Sarasota, FL | LLC | May 12, 2017 | Active |
| HART ANESTHESIA PROVIDERS LLCSatellite Beach, FL · Active | Satellite Beach, FL | LLC | Aug 15, 2013 | Active |
| VAN DYK INCMiami Beach, FL · Inactive | Miami Beach, FL | Corporation | Dec 28, 1967 | Inactive |
| LINCOLN BAY HOLDING CORP INCLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Aug 19, 1968 | Inactive |
| THE NIGHT CLUB, INC.Winter Park, FL · Inactive | Winter Park, FL | Corporation | Jun 21, 1976 | Inactive |
| HART, INCORPORATEDSt. Petersburg, FL · Inactive | St. Petersburg, FL | Corporation | Aug 30, 1977 | Inactive |
| ST. PETERSBURG AMATEUR HOCKEY ASSOCIATION, INC.St. Petersburg, FL · Inactive | St. Petersburg, FL | Nonprofit | Jun 30, 1967 | Inactive |
| SUNSHINE REAL ESTATE INVESTORS, LTD.St. Petersburg, FL · Inactive | St. Petersburg, FL | Partnership | Feb 20, 1984 | Inactive |
| AMERICAN BURIAL AND CREMATION CENTERS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 25, 1996 | Inactive |
| HART OF FLORIDA REALTY, INC.St. Petersburg, FL · Inactive | St. Petersburg, FL | Corporation | Dec 13, 1982 | Inactive |
| CHALLENGE INTERNATIONAL CORPORATIONAtlantic Beach, FL · Inactive | Atlantic Beach, FL | Corporation | Oct 16, 1984 | Inactive |
| AMERICAN MEDICAL AND PHARMACEUTICAL EXPORT COMPANY, INC.Jacksonville, FL · Inactive | Jacksonville, FL | Corporation | Sep 3, 1986 | Inactive |
| LAWN CARE BY HART INC.Jacksonville, FL · Inactive | Jacksonville, FL | Corporation | Jun 2, 1989 | Inactive |
| WASHING WITH HART LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Feb 15, 2024 | Inactive |
| HART PRO AUDIO LLCOrmond Beach, FL · Active | Ormond Beach, FL | LLC | Mar 30, 2026 | Active |
| MARDI, INC.St. Petersburg, FL · Inactive | St. Petersburg, FL | Corporation | May 11, 1990 | Inactive |
| GULF COAST TANNERY, INC.Tarpon Springs, FL · Inactive | Tarpon Springs, FL | Corporation | Sep 4, 1990 | Inactive |
| TARPON SPRINGS INTERNATIONAL TANNERY, INC.Tarpon Springs, FL · Inactive | Tarpon Springs, FL | Corporation | Sep 4, 1990 | Inactive |
| CJC PROPERTIES II, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Sep 13, 2012 | Inactive |
| HOUSES WITH HART INC.Sarasota, FL · Inactive | Sarasota, FL | Nonprofit | Aug 19, 2020 | Inactive |
| HARWAY PROPERTIES INC.Ormond Beach, FL · Active | Ormond Beach, FL | Corporation | Mar 16, 1998 | Active |
| CONSOLIDATOR TICKETS INC.Jacksonville, FL · Inactive | Jacksonville, FL | Corporation | Mar 22, 1991 | Inactive |
| INTERNATIONAL TRAVEL GROUP INC.Jacksonville, FL · Inactive | Jacksonville, FL | Corporation | Nov 25, 1991 | Inactive |
| COMMERCIAL MOWING INCJacksonville, FL · Inactive | Jacksonville, FL | Corporation | Jan 10, 1992 | Inactive |