| HARTMAN, O'MEARA, MCCANN, LUTZ, INC.Pompano Beach, FL · Inactive | Pompano Beach, FL | Corporation | Oct 18, 1958 | Inactive |
| THE CENTER FOR MARKETING AND ADVERTISING, INC.Sarasota, FL · Inactive | Sarasota, FL | Corporation | Aug 17, 1967 | Inactive |
| THE NATIONAL ADVERTISING CENTER, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Sep 24, 1970 | Inactive |
| BILL HARTMAN ADVERTISING, INC.Miami, FL · Inactive | Miami, FL | Corporation | May 9, 1974 | Inactive |
| RETIREMENT CENTERS, INC.Sarasota, FL · Inactive | Sarasota, FL | Corporation | Feb 27, 1979 | Inactive |
| THE CENTER FOR ADVERTISING, INC.Maimi, FL · Inactive | Maimi, FL | Corporation | Jul 8, 1981 | Inactive |
| FRAUNHOFER CENTER FOR RESEARCH IN COMPUTER GRAPHICS, INC.Location not reported, FL · Inactive | Location not reported, FL | Nonprofit | Sep 15, 2000 | Inactive |
| ZAPWORLD.COM, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Oct 17, 2000 | Inactive |
| PAD ENTERPRISES, INC.St. Petersburg, FL · Inactive | St. Petersburg, FL | Corporation | Apr 21, 1981 | Inactive |
| NAB ASSOCIATES, INC.Clearwater, FL · Inactive | Clearwater, FL | Corporation | Apr 21, 1981 | Inactive |
| C.S. DELIVERIES, INC.Miami Lakes, FL · Inactive | Miami Lakes, FL | Corporation | Mar 23, 1988 | Inactive |
| HART2HART REAL ESTATE INVESTMENTS, "LLC"Jupiter, FL · Inactive | Jupiter, FL | LLC | Mar 2, 2009 | Inactive |
| WORLDWIDE DIVERSIFIED ASSOCIATES LLCCape Coral, FL · Inactive | Cape Coral, FL | LLC | Jan 5, 2015 | Inactive |
| HARTMAN'S SWEET TREATS, LLCPinellas Park, FL · Inactive | Pinellas Park, FL | LLC | Mar 27, 2024 | Inactive |
| RUBY RED MARKETING FIRM, LLCSpringhill, FL · Active | Springhill, FL | LLC | Aug 4, 2025 | Active |
| KENT M CONDOMINIUM ASSOCIATION, INC.West Palm Beach, FL · Active | West Palm Beach, FL | Nonprofit | Nov 3, 1986 | Active |
| LEE ESTATES HOMEOWNERS ASSOCIATION, INC.Lake Worth, FL · Active | Lake Worth, FL | Nonprofit | Jul 6, 1992 | Active |
| SOUTHCREEK HOMEOWNERS ASSOCIATION, INC.Saint Johns, FL · Active | Saint Johns, FL | Nonprofit | May 19, 1993 | Active |
| WILLIAM HARTMAN, CORPPompano Beach, FL · Inactive | Pompano Beach, FL | Corporation | Mar 31, 2006 | Inactive |
| SAE INDUSTRIES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 3, 1996 | Inactive |
| PTL COMMUNICATION, INC.Deland, FL · Inactive | Deland, FL | Corporation | May 1, 1997 | Inactive |
| WILDCAT AVIATION MANAGEMENT, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Sep 25, 1997 | Inactive |
| EXECREC, INC.Miami, FL · Inactive | Miami, FL | Corporation | Sep 11, 1991 | Inactive |