| HFSC VIII, LLCHollywood, FL · Active | Hollywood, FL | LLC | Apr 21, 2021 | Active |
| HFSC IV CORP.Hollywood, FL · Active | Hollywood, FL | Corporation | Jan 20, 2017 | Active |
| OPTICAL DISPLAY ENGINEERING, INC.Hollywood, FL · Active | Hollywood, FL | Corporation | Dec 26, 2012 | Active |
| HEICO FLIGHT SUPPORT CORP.Hollywood, FL · Active | Hollywood, FL | Corporation | Jul 20, 2012 | Active |
| 16-1741 PROPERTY, INC.Hollywood, FL · Active | Hollywood, FL | Corporation | Jan 24, 2012 | Active |
| MORNINGSIDE BOAT, LLCMiami, FL · Active | Miami, FL | LLC | Apr 18, 2022 | Active |
| HFSC XI CORP.Miami, FL · Active | Miami, FL | Corporation | Jan 6, 2022 | Active |
| MENDELSON INTERNATIONAL CORPORATIONMiami, FL · Active | Miami, FL | Corporation | Mar 14, 1983 | Active |
| ENVIRONMENTAL SERVICES GROUP, INC.Miami, FL · Inactive | Miami, FL | Corporation | Jun 1, 1987 | Inactive |
| COLUMBIA WESTCHESTER DEVELOPMENT CORPORATIONMiami, FL · Active | Miami, FL | Corporation | Dec 5, 1988 | Active |
| COLUMBIA CAPITAL CORPORATIONMiami, FL · Inactive | Miami, FL | Corporation | Jan 9, 1989 | Inactive |
| MIC 1648, LLCMiami, FL · Active | Miami, FL | LLC | Jun 11, 2021 | Active |
| B.B.B. WEST, INC.Miami, FL · Active | Miami, FL | Corporation | Jun 1, 1990 | Active |
| HEICO EAST CORPORATIONHollywood, FL · Active | Hollywood, FL | Corporation | Jul 20, 1990 | Active |
| COLUMBIA HOLDINGS CORP.Miami, FL · Inactive | Miami, FL | Corporation | Feb 4, 1988 | Inactive |
| COLUMBIA PARTNERS, INC.Miami, FL · Inactive | Miami, FL | Corporation | Mar 21, 1988 | Inactive |
| LAURANS A. & ARLENE H. MENDELSON CHARITABLE FOUNDATION, INC.Miami, FL · Active | Miami, FL | Nonprofit | Nov 26, 1996 | Active |
| CSI AEROSPACE, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Jun 19, 2012 | Active |
| REINHOLD ACQUISITION CORP.Hollywood, FL · Inactive | Hollywood, FL | Corporation | Apr 22, 2013 | Inactive |
| HEICO CORPORATIONHollywood, FL · Active | Hollywood, FL | Corporation | Jan 27, 1993 | Active |
| HEICO AEROSPACE HOLDINGS CORP.Hollywood, FL · Active | Hollywood, FL | Corporation | Oct 10, 1997 | Active |
| FIDELITY MANAGEMENT CORP.Miami, FL · Active | Miami, FL | Corporation | Jan 21, 1992 | Active |