| MICHAEL SIMPSON, PH.D., PAOviedo, FL · Active | Oviedo, FL | Corporation | Dec 14, 2009 | Active |
| ANEJO INVESTMENTS LLCMiami, FL · Active | Miami, FL | LLC | Nov 12, 2015 | Active |
| ISLAND QUEEN CAFE, CRUISES & TOURS INCMiami, FL · Active | Miami, FL | Corporation | Jun 1, 2015 | Active |
| ANEJO FISHING CHARTERS INCMiami, FL · Active | Miami, FL | Corporation | Jan 8, 2008 | Active |
| STMI HOLDINGS, INC.Miami, FL · Active | Miami, FL | Corporation | Dec 27, 2005 | Active |
| THE PSYCHIATRIC ALTERNATIVE, INC.Oviedo, FL · Active | Oviedo, FL | Corporation | Oct 10, 2016 | Active |
| MOOSE JOOSE, "LLC"Tampa, FL · Active | Tampa, FL | LLC | May 26, 2020 | Active |
| SIMPSON HAULING, LLCWilliston, FL · Active | Williston, FL | LLC | Jul 28, 2025 | Active |
| ISLAND QUEEN SIGHTSEEING TOURS, INC.Miami, FL · Active | Miami, FL | Corporation | May 7, 1981 | Active |
| JERRY AND MIKE'S TRUCKING, INC.Jensen Beach, FL · Inactive | Jensen Beach, FL | Corporation | Oct 17, 1983 | Inactive |
| ROUNDTABLE INSURANCE GROUP LLCParrish, FL · Inactive | Parrish, FL | LLC | Sep 13, 2010 | Inactive |
| CM PROPERTY MANAGEMENT, LLCNew Port Richey, FL · Inactive | New Port Richey, FL | LLC | Apr 20, 2011 | Inactive |
| SIMPSON INVESTMENT GROUP, LLCWeston, FL · Inactive | Weston, FL | LLC | Oct 25, 2011 | Inactive |
| SLAM DUNK SIMPSON, LLCCoconut Creek, FL · Inactive | Coconut Creek, FL | LLC | Oct 9, 2020 | Inactive |
| MICHAEL E SIMPSON LLCOrange Park, FL · Inactive | Orange Park, FL | LLC | Aug 22, 2022 | Inactive |
| HDA PROPERTIES LLCValparaiso, FL · Inactive | Valparaiso, FL | LLC | Jan 16, 2024 | Inactive |
| MS LIFE CONSULTING LLCFort Lauderdale, FL · Active | Fort Lauderdale, FL | LLC | Feb 9, 2026 | Active |
| CASCADE LAKES LLCDavenport, FL · Inactive | Davenport, FL | LLC | Dec 7, 2021 | Inactive |
| MIAMI JAMMERS YOUTH MOTIVATION CENTER, INC.Miami, FL · Inactive | Miami, FL | Nonprofit | Jun 19, 1990 | Inactive |
| SIMPSON PAINTING OF CENTRAL FL INCEdgewater, FL · Inactive | Edgewater, FL | Corporation | Mar 3, 2005 | Inactive |
| MIKES RESCREENING AND DRYWALL REPAIR INC.Vero Beach, FL · Inactive | Vero Beach, FL | Corporation | Apr 20, 2005 | Inactive |
| WALL TO WALL INCJacksonville, FL · Inactive | Jacksonville, FL | Corporation | May 15, 2006 | Inactive |
| SIMPSON INVESTMENT GROUP, INC.Weston, FL · Inactive | Weston, FL | Corporation | Apr 28, 2008 | Inactive |
| 2013 SIMPSON PAINTING OF CENTRAL FL. INC.Apopka, FL · Inactive | Apopka, FL | Corporation | Mar 20, 2013 | Inactive |
| CONSOLIDATED CREDIT CONSULTANTS, INC.Miami, FL · Inactive | Miami, FL | Corporation | Dec 18, 1992 | Inactive |
| SCALPER FISHING CHARTERS, INC.Miami, FL · Active | Miami, FL | Corporation | Jan 10, 1994 | Active |
| SIMS MACHINE CORP.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | Apr 17, 1995 | Inactive |
| DIANA KILPATRICK SIMPSON, P.A.Ocala, FL · Inactive | Ocala, FL | Corporation | Feb 8, 1995 | Inactive |
| PIER 5 PHOTOS, INC.Miami, FL · Active | Miami, FL | Corporation | Mar 9, 1998 | Active |
| SIMPSON TRANSFER, INC.Lake Hamilton, FL · Inactive | Lake Hamilton, FL | Corporation | Aug 4, 1992 | Inactive |