| GALERIA CASA CUADRADA CORPDoral, FL · Active | Doral, FL | Corporation | Jan 4, 2021 | Active |
| NATIONAL RESEARCH CENTERS, POMPANO LLCMargate, FL · Active | Margate, FL | LLC | Sep 7, 2023 | Active |
| NATIONAL RESEARCH CENTERS, CANCER LLCMargate, FL · Active | Margate, FL | LLC | Jun 21, 2023 | Active |
| M&H REAL STATE LLCMiami, FL · Active | Miami, FL | LLC | Oct 27, 2025 | Active |
| NATIONAL RESEARCH CENTERS, NORTH MIAMI LLCMiami, FL · Active | Miami, FL | LLC | Jan 21, 2025 | Active |
| FLORIDA TRANSPORT SERVICES BY DH LLCMiami, FL · Inactive | Miami, FL | LLC | Nov 22, 2024 | Inactive |
| HOMES BY DH, LLCMiami, FL · Active | Miami, FL | LLC | Sep 6, 2024 | Active |
| D&H KENDALL RESEARCH CENTER LLCMiami, FL · Active | Miami, FL | LLC | Nov 2, 2022 | Active |
| BH RESEARCH CONSULTING LLCMiami, FL · Active | Miami, FL | LLC | Jun 23, 2022 | Active |
| NATIONAL RESEARCH CENTERS, DORAL LLCMiami, FL · Active | Miami, FL | LLC | Jun 20, 2022 | Active |
| NATIONAL RESEARCH CENTERS INCMiami, FL · Active | Miami, FL | Corporation | Jul 16, 2018 | Active |
| MHCR LLCMiami, FL · Active | Miami, FL | LLC | Feb 24, 2017 | Active |
| NAPA RESEARCH LLCMiami, FL · Active | Miami, FL | LLC | Nov 5, 2019 | Active |
| D&H MEDICAL SERVICES, LLCTamarac, FL · Active | Tamarac, FL | LLC | May 26, 2023 | Active |
| NATIONAL RESEARCH CENTERS, TAMARAC LLCTamarac, FL · Active | Tamarac, FL | LLC | Aug 11, 2020 | Active |
| NATIONAL IMMIGRATION SERVICES LLCMiami, FL · Active | Miami, FL | LLC | Sep 18, 2023 | Active |
| NRC HOLDINGS LLCMiami, FL · Active | Miami, FL | LLC | Apr 22, 2024 | Active |
| TRANSPORT AND SERVICE BY DH LLCMiami, FL · Inactive | Miami, FL | LLC | Nov 19, 2025 | Inactive |
| NRC & ARC RESEARCH NETWORK LLCMiami, FL · Active | Miami, FL | LLC | Mar 2, 2026 | Active |
| NATIONAL RESEARCH CENTERS, HIALEAH GARDENS FL LLCHialeah Gardens, FL · Active | Hialeah Gardens, FL | LLC | Mar 2, 2026 | Active |
| NATIONAL RESEARCH CENTERS, CORAL SPRINGS FLORIDA LLCCoral Springs, FL · Active | Coral Springs, FL | LLC | Mar 25, 2026 | Active |
| 8145 DORAL PHARMACY LLCDoral, FL · Inactive | Doral, FL | LLC | May 21, 2026 | Inactive |
| NATIONAL RESEARCH CENTERS, MIAMI GARDENS LLCMiami Gardens, FL · Active | Miami Gardens, FL | LLC | Jun 10, 2026 | Active |
| NATIONAL RESEARCH CENTERS, LITTLE HAVANA LLCMiami, FL · Active | Miami, FL | LLC | Jul 9, 2026 | Active |
| NATIONAL RESEARCH CENTERS, NMB LLCNorth Miami, FL · Active | North Miami, FL | LLC | Jul 9, 2026 | Active |
| NATIONAL RESEARCH CENTERS, WEST PALM BEACH LLCWest Palm Beach, FL · Active | West Palm Beach, FL | LLC | Aug 18, 2026 | Active |
| O-WOW LLCKissimmee, FL · Active | Kissimmee, FL | LLC | Sep 21, 2026 | Active |
| CARLOS EDUARDO MARTIN CORPMiami, FL · Inactive | Miami, FL | Corporation | Dec 21, 2021 | Inactive |
| YASSS BEAUTY CORPCoral Gables, FL · Active | Coral Gables, FL | Corporation | Feb 12, 2026 | Active |
| NATIONAL RESEARCH CENTERS, KISSIMMEE LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Oct 13, 2026 | Active |