| WHITEHALL MOB, LLCNorth Palm Beach, FL · Active | North Palm Beach, FL | LLC | Jul 28, 2022 | Active |
| MARK ALEXANDER & CO, INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Dec 31, 2012 | Active |
| ALEXANDER FINANCIAL SERVICES LLCJensen Beach, FL · Active | Jensen Beach, FL | LLC | Oct 27, 2022 | Active |
| APEX PRECISION MACHINING, INCLongwood, FL · Active | Longwood, FL | Corporation | May 23, 2006 | Active |
| M.D.ALEXANDER, INC.Riverview, FL · Active | Riverview, FL | Corporation | Jun 11, 2013 | Active |
| EPIC BIKES INC.Tallahassee, FL · Active | Tallahassee, FL | Corporation | Aug 9, 2021 | Active |
| OAKS V ASSOCIATES, LTD.Location not reported, FL · Inactive | Location not reported, FL | Partnership | Sep 15, 1986 | Inactive |
| THE EMERALD GROUP, INCORPORATEDLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Sep 30, 2002 | Inactive |
| MARK ALEXANDER COMMERCIAL REALTY, LLCFort Myers, FL · Inactive | Fort Myers, FL | LLC | Mar 12, 2002 | Inactive |
| 3677 CENTRAL AVE, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Sep 10, 2003 | Inactive |
| W & L, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Oct 21, 2005 | Inactive |
| ONE LAST CAST BARBECUE, LLCPlantation, FL · Inactive | Plantation, FL | LLC | May 20, 2014 | Inactive |
| MEIOMI VACATION RENTALS LLCTreasure Island, FL · Inactive | Treasure Island, FL | LLC | Oct 28, 2014 | Inactive |
| THROW THE HEAT, LLCOrlando, FL · Inactive | Orlando, FL | LLC | Nov 17, 2016 | Inactive |
| H B ALEXANDER LLC.Sanford, FL · Inactive | Sanford, FL | LLC | Feb 7, 2019 | Inactive |
| MARS INTELLIGENCE GROUP, LLCSt. Johns, FL · Inactive | St. Johns, FL | LLC | Apr 6, 2021 | Inactive |
| MARK ALEXANDER & COMPANY, INC.Fort Myers, FL · Inactive | Fort Myers, FL | Corporation | Jun 14, 1990 | Inactive |
| ART SERVICES 2000 LTD. CO.Palm Coast, FL · Active | Palm Coast, FL | LLC | Nov 30, 1999 | Active |
| RHUIDEAN INVESTMENTS INCSt. Petersburg, FL · Inactive | St. Petersburg, FL | Corporation | Feb 15, 2023 | Inactive |
| EPIC LIFE, INC.Tallahassee, FL · Active | Tallahassee, FL | Corporation | Feb 7, 2025 | Active |
| ALEXANDER INTERNATIONAL, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Feb 3, 1993 | Inactive |
| SOUTH FLORIDA TOOL RENTAL, INC.Plantation, FL · Inactive | Plantation, FL | Corporation | Jan 29, 1996 | Inactive |
| K - 9 BODYGUARDS, INC.Royal Palm Beach, FL · Inactive | Royal Palm Beach, FL | Corporation | Sep 6, 1991 | Inactive |
| SOUTHERN HOME CONTRACTING, INC.W. Palm Beach, FL · Inactive | W. Palm Beach, FL | Corporation | Jun 29, 1992 | Inactive |