| MAINSTREET 1330 SOUTHERN, INC.Boca Raton, FL · Active | Boca Raton, FL | Corporation | Apr 4, 2023 | Active |
| MAINSTREET 4300 FAYETTEVILLE INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Nov 12, 2021 | Active |
| MAINSTREET DEVON PARK,INC.Boca Raton, FL · Active | Boca Raton, FL | Corporation | Apr 21, 2021 | Active |
| MAINSTREET NCC DEVELOPMENT, LLCFort Lauderdale, FL · Active | Fort Lauderdale, FL | LLC | Nov 13, 2020 | Active |
| MAINSTREET BOCA HOTEL, INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Jan 6, 2020 | Active |
| MAINSTREET CAMELBACK LAKES INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | May 14, 2019 | Inactive |
| MAINSTREET MISSOURI CENTER, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | Mar 14, 2019 | Inactive |
| PG MAINSTREET NORTH FORTY, LLCFort Lauderdale, FL · Active | Fort Lauderdale, FL | LLC | Jan 29, 2019 | Active |
| MAINSTREET NORTH 40, INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Jan 14, 2019 | Active |
| MAINSTREET 2700 N. CENTRAL, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | May 7, 2018 | Inactive |
| MAINSTREET SOUTHSIDE CENTER, INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Nov 9, 2016 | Active |
| MAINSTREET 2000 RIVEREDGE, INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Apr 20, 2016 | Active |
| MAINSTREET SARDIS ROAD, INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Jul 9, 2015 | Active |
| MAINSTREET CV 76 S. LAURA ST., LLCFort Lauderdale, FL · Active | Fort Lauderdale, FL | LLC | Mar 6, 2015 | Active |
| MAINSTREET WESTLAKE, INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Aug 1, 2002 | Active |
| MAINSTREET REAL ESTATE SERVICES, INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Mar 14, 2000 | Active |
| BRG HERON BAY LLCPompano Beach, FL · Active | Pompano Beach, FL | LLC | Jun 1, 2015 | Active |
| ARVIDA PARK OF COMMERCE WEST ASSOCIATION, INC.Boca Raton, FL · Active | Boca Raton, FL | Nonprofit | Jun 2, 1978 | Active |
| MAINSTREET 2101 MANAGER, LLCFort Lauderdale, FL · Inactive | Fort Lauderdale, FL | LLC | Feb 5, 2013 | Inactive |
| PG MAINSTREET NORTH 40, LLCFort Lauderdale, FL · Inactive | Fort Lauderdale, FL | LLC | Dec 21, 2018 | Inactive |
| KILLIGI LLCCoral Gables, FL · Inactive | Coral Gables, FL | LLC | Oct 27, 2020 | Inactive |
| MAINSTREET DEVELOPMENT GROUP LLCBoca Raton, FL · Active | Boca Raton, FL | LLC | Mar 27, 2026 | Active |
| MAINSTREET CV NORTH 40, LLCFort Lauderdale, FL · Inactive | Fort Lauderdale, FL | LLC | Jun 30, 2014 | Inactive |
| WESTLAKE TAMPA LLCBoca Raton, FL · Active | Boca Raton, FL | LLC | Mar 12, 2026 | Active |
| MAINSTREET RIVERS PARK, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | Aug 1, 2017 | Inactive |
| MAINSTREET ENVIRONMENTAL WAY, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | Sep 25, 2019 | Inactive |
| MAINSTREET WESTLAKE APARTMENTS GP, INC.Boca Raton, FL · Active | Boca Raton, FL | Corporation | May 11, 2026 | Active |
| MAINSTREET CAPITAL PARTNERS, INC.Fort Lauderdale, FL · Active | Fort Lauderdale, FL | Corporation | Mar 17, 1999 | Active |