| BRIGHTLINE EAST LLCMiami, FL · Active | Miami, FL | LLC | Nov 30, 2023 | Active |
| BRIGHTLINE TAMPA LLCMiami, FL · Active | Miami, FL | LLC | Nov 30, 2023 | Active |
| BRIGHTLINE FLORIDA HOLDINGS LLCMiami, FL · Active | Miami, FL | LLC | Aug 12, 2022 | Active |
| COUNTYLINE BUILDING 23 LLCMiami, FL · Active | Miami, FL | LLC | Feb 14, 2022 | Active |
| BL EXPANSION LLCMiami, FL · Active | Miami, FL | LLC | Dec 8, 2021 | Active |
| BRWD COMMUTER LLCMiami, FL · Active | Miami, FL | LLC | Dec 8, 2021 | Active |
| MDC COMMUTER LLCMiami, FL · Active | Miami, FL | LLC | Dec 8, 2021 | Active |
| BLH CAPITAL & MANAGEMENT SERVICES LLCMiami, FL · Active | Miami, FL | LLC | Oct 23, 2020 | Active |
| BRIGHTLINE HOLDINGS LLCMiami, FL · Active | Miami, FL | LLC | Oct 15, 2019 | Active |
| MIAMI SUPERTOWER A LLCMiami, FL · Active | Miami, FL | LLC | Aug 12, 2019 | Active |
| MIAMI SUPERTOWER B LLCMiami, FL · Active | Miami, FL | LLC | Aug 12, 2019 | Active |
| NEW FLAGER DEVELOPMENT LLCMiami, FL · Active | Miami, FL | LLC | Jun 17, 2019 | Active |
| FECI LT1 LLCMiami, FL · Active | Miami, FL | LLC | Aug 6, 2018 | Active |
| DTS DT RETAIL LLCMiami, FL · Active | Miami, FL | LLC | Jun 29, 2017 | Active |
| COUNTYLINE 2 LLCMiami, FL · Active | Miami, FL | LLC | Aug 3, 2016 | Active |
| BRIGHTLINE MANAGEMENT LLCMiami, FL · Active | Miami, FL | LLC | Sep 25, 2015 | Active |
| FDG LR 7 LLCMiami, FL · Active | Miami, FL | LLC | Nov 12, 2014 | Active |
| DT MIAMI LLCMiami, FL · Active | Miami, FL | LLC | Mar 20, 2014 | Active |
| FLORIDA EAST COAST INDUSTRIES, LLCMiami, FL · Active | Miami, FL | LLC | Dec 9, 2013 | Active |
| FECI COMPANY, LLCMiami, FL · Active | Miami, FL | LLC | Dec 2, 2013 | Active |
| FLAGLER BROKERAGE AND MANAGEMENT SERVICES LLCMiami, FL · Active | Miami, FL | LLC | Mar 14, 2012 | Active |
| FLAGLER DEVELOPMENT COMPANY, LLCMiami, FL · Active | Miami, FL | LLC | Jun 27, 2011 | Active |
| FLAGLER REAL ESTATE DEVELOPMENT LLCMiami, FL · Active | Miami, FL | LLC | Dec 27, 2007 | Active |
| BRIGHTLINE TRAINS FLORIDA LLCMiami, FL · Active | Miami, FL | LLC | Dec 18, 2007 | Active |
| FECI REALTY LLCMiami, FL · Active | Miami, FL | LLC | Dec 7, 2006 | Active |
| DXE MANAGEMENT LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Nov 26, 2024 | Active |
| PBC COMMUTER LLCMiami, FL · Active | Miami, FL | LLC | Feb 9, 2023 | Active |
| FTL GARAGE LLCMiami, FL · Active | Miami, FL | LLC | Dec 10, 2025 | Active |
| BRIGHTLINE TRAIN DEVELOPMENT LLCMiami, FL · Active | Miami, FL | LLC | Apr 24, 2026 | Active |
| CODINA CONSTRUCTION CORPORATIONMiami, FL · Active | Miami, FL | Corporation | Jul 25, 1988 | Active |