| 4912 WEST SPRUCE, LLCTampa, FL · Active | Tampa, FL | LLC | Oct 26, 2005 | Active |
| SIGNAL EQUIPMENT CO., INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | May 8, 1959 | Inactive |
| SERVICE LEASING COMPANYTampa, FL · Inactive | Tampa, FL | Corporation | Jan 1, 1982 | Inactive |
| J.P. HELICOPTERS, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Sep 17, 1982 | Inactive |
| PARKER VENTURES, INC.Tampa, FL · Active | Tampa, FL | Corporation | Jan 30, 1987 | Active |
| SPECIAL EVENTS INTERNATIONAL, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Sep 16, 1987 | Inactive |
| PBCA, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Oct 12, 1987 | Inactive |
| PBCA PROPERTIES, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Mar 21, 1988 | Inactive |
| FINANCIAL-INFORMATION-TECHNOLOGIES, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Mar 27, 1989 | Inactive |
| NEW ENGLAND CHOICE SEAFOOD LLC.Sarasota, FL · Inactive | Sarasota, FL | LLC | Oct 25, 2012 | Inactive |
| SUN HAVEN PRODUCTIONS, LLC.Tampa, FL · Inactive | Tampa, FL | LLC | Mar 8, 2022 | Inactive |
| PARKER COMMUNICATIONS NETWORK, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Apr 2, 1990 | Inactive |
| ROSS AND BARBARA PARKER FOUNDATION, INC.Tampa, FL · Inactive | Tampa, FL | Nonprofit | Oct 2, 2000 | Inactive |
| CRESTWOOD FARM, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Jan 30, 2001 | Inactive |
| PARKER ENTERPRISES OF SRQ, INC.Sarasota, FL · Inactive | Sarasota, FL | Corporation | Jan 19, 2010 | Inactive |
| NEW FINTECH, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Sep 7, 2016 | Inactive |
| FENWICK INTERNATIONAL, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Mar 22, 1995 | Inactive |
| FIN/MAR, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Jan 17, 1996 | Inactive |
| TRANSACTIONAL COMMERCE SERVICES, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Aug 14, 1997 | Inactive |
| TCS ACQUISITION CORPORATIONTampa, FL · Inactive | Tampa, FL | Corporation | Sep 24, 1997 | Inactive |
| IN STORE MEDIA, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Oct 16, 1998 | Inactive |