| AMBER WAVES JEWELRY, L.L.C.Location not reported, FL · Inactive | Location not reported, FL | LLC | Feb 28, 2002 | Inactive |
| LUFTHANSA TECHNIK COMPONENT SERVICES LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jun 7, 2005 | Active |
| HEMPHILL TOWER, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Jul 18, 2005 | Inactive |
| PRIME TOWER, L.L.C.Location not reported, FL · Inactive | Location not reported, FL | LLC | May 31, 2007 | Inactive |
| HEMPHILL, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jun 5, 2008 | Active |
| NATIONWIDE STAFFING, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Dec 14, 2015 | Inactive |
| EMPIRE TOWER I, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Aug 15, 2016 | Inactive |
| OMNI AIR TRANSPORT, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Jun 26, 2017 | Inactive |
| ROBANGUI, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Oct 25, 2018 | Inactive |
| HEMPHILL TOWERS, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Feb 4, 2020 | Active |
| HEMPHILL TOWERS I, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Mar 18, 2021 | Inactive |
| BENNETT TOWERS, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Mar 26, 2021 | Active |
| CLEAR MOBILE, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Jul 5, 2022 | Inactive |
| OMNI AIRCRAFT SALES, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Jul 2, 2025 | Inactive |
| HYDRO EQUIPMENT, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 26, 1984 | Inactive |
| HYDRO CONSTRUCTION, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 26, 1984 | Inactive |
| ROUTE 97 RENOVATIONS INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Dec 10, 2003 | Inactive |
| MIDWEST INDUSTRIAL CONTRACTORS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jan 6, 1986 | Inactive |
| JARVIS INTERNATIONAL INTELLIGENCE, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Oct 10, 1988 | Inactive |