| MORSECOM PROPERTIES, LLCMelbourne, FL · Active | Melbourne, FL | LLC | Mar 11, 2025 | Active |
| FAWN HOLLOW DRESSAGE, LLCMelbourne, FL · Active | Melbourne, FL | LLC | Feb 15, 2017 | Active |
| AKABIS, LLCMelbourne, FL · Active | Melbourne, FL | LLC | Aug 12, 2016 | Active |
| COSTELLO FAMILY HOLDINGS, LLCMelbourne, FL · Active | Melbourne, FL | LLC | Jun 8, 2011 | Active |
| FAWN HOLLOW, LLCMelbourne, FL · Active | Melbourne, FL | LLC | Dec 22, 2005 | Active |
| M&A GETAWAY, LLCMelbourne Beach, FL · Active | Melbourne Beach, FL | LLC | Nov 29, 2022 | Active |
| COZ5, LLCOcala, FL · Inactive | Ocala, FL | LLC | Dec 6, 2019 | Inactive |
| US HWY 17 PROPERTIES, LLCOcala, FL · Active | Ocala, FL | LLC | Nov 22, 2013 | Active |
| COZ4, LLCOcala, FL · Active | Ocala, FL | LLC | Jun 5, 2009 | Active |
| COSTELLO'S FITNESS OUTLET INC.Coral Springs, FL · Inactive | Coral Springs, FL | Corporation | Jan 25, 1989 | Inactive |
| 403 SUNRISE PARKWAY, L.L.C.Ocala, FL · Inactive | Ocala, FL | LLC | May 26, 2000 | Inactive |
| PARKLAND REAL ESTATE, LLCParkland, FL · Inactive | Parkland, FL | LLC | Aug 8, 2003 | Inactive |
| PARKLAND BUILDERS, L.L.C.Parkland, FL · Inactive | Parkland, FL | LLC | Feb 4, 2004 | Inactive |
| ERICE, LLCPort St. Lucie, FL · Inactive | Port St. Lucie, FL | LLC | Oct 27, 2006 | Inactive |
| WESTVIEW 104, LLCOcala, FL · Inactive | Ocala, FL | LLC | Jun 19, 2009 | Inactive |
| COZ'S SPORTS BAR & GRILL, LLCCoral Springs, FL · Inactive | Coral Springs, FL | LLC | Nov 29, 2011 | Inactive |
| CR 45ST LLCOcala, FL · Inactive | Ocala, FL | LLC | Jan 28, 2016 | Inactive |
| CR RIVERSIDE LLCOcala, FL · Inactive | Ocala, FL | LLC | Sep 9, 2016 | Inactive |
| 1813 LAUDERHILL LLCOcala, FL · Inactive | Ocala, FL | LLC | Jan 23, 2017 | Inactive |
| 1783 LAUDERHILL LLCOcala, FL · Inactive | Ocala, FL | LLC | Jan 23, 2017 | Inactive |
| MUCHA MUCHA LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | May 14, 2020 | Inactive |
| FLORIDA SPORTSWEAR INC.Coral Springs, FL · Inactive | Coral Springs, FL | Corporation | May 16, 1990 | Inactive |
| CATTLE2CHRIST, INC.Ocala, FL · Inactive | Ocala, FL | Nonprofit | Jan 28, 2022 | Inactive |
| COSCOM, INC.Melbourne, FL · Inactive | Melbourne, FL | Corporation | Feb 15, 1994 | Inactive |
| COSTELLO'S FITNESS OF NEW JERSEY INC.Coral Springs, FL · Inactive | Coral Springs, FL | Corporation | Apr 4, 1994 | Inactive |
| COSTELLO BROS INC.Coral Springs, FL · Inactive | Coral Springs, FL | Corporation | May 10, 1994 | Inactive |
| MORSE COMMUNICATIONS, INC.Melbourne, FL · Active | Melbourne, FL | Corporation | Oct 23, 1998 | Active |
| MICHAEL J. COSTELLO, M.D., P.A.Port St. Lucie, FL · Inactive | Port St. Lucie, FL | Corporation | Sep 2, 1992 | Inactive |