| HEICO PARTS GROUP, INC.Hollywood, FL · Active | Hollywood, FL | Corporation | Jul 25, 2008 | Active |
| DYNATECH ACQUISITION CORP.Hollywood, FL · Active | Hollywood, FL | Corporation | Jan 2, 2008 | Active |
| EMD ACQUISITION CORP.Hollywood, FL · Active | Hollywood, FL | Corporation | Sep 5, 2007 | Active |
| MERIDIAN INDUSTRIAL, INC.Hollywood, FL · Active | Hollywood, FL | Corporation | Sep 4, 2007 | Active |
| DEC TECHNOLOGIES, INC.Hollywood, FL · Active | Hollywood, FL | Corporation | Jun 26, 2007 | Active |
| MORNINGSIDE BOAT, LLCMiami, FL · Active | Miami, FL | LLC | Apr 18, 2022 | Active |
| LANIM COMPANY, LLCMiami, FL · Active | Miami, FL | LLC | Jan 29, 2018 | Active |
| CARROLLTAM, LTD.Miami, FL · Active | Miami, FL | Partnership | Feb 24, 2004 | Active |
| CARROLLTAM, LLCMiami, FL · Active | Miami, FL | LLC | Feb 5, 2004 | Active |
| HEICO AEROSPACE CORPORATIONHollywood, FL · Active | Hollywood, FL | Corporation | Jan 4, 1957 | Active |
| EWE WAREHOUSE INVESTMENTS IV, LTD.Hollywood, FL · Inactive | Hollywood, FL | Partnership | Dec 3, 1998 | Inactive |
| MENDELSON INTERNATIONAL CORPORATIONMiami, FL · Active | Miami, FL | Corporation | Mar 14, 1983 | Active |
| LEADER TECH, INC.Tampa, FL · Active | Tampa, FL | Corporation | Aug 9, 1984 | Active |
| COLUMBIA VENTURES, INC.Miami, FL · Inactive | Miami, FL | Corporation | Oct 4, 1985 | Inactive |
| IDAZZLERS, LLCCoconut Grove, FL · Inactive | Coconut Grove, FL | LLC | Jan 3, 2005 | Inactive |
| PRIME AIR, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Sep 14, 2006 | Active |
| HEICO EAST CORPORATIONHollywood, FL · Active | Hollywood, FL | Corporation | Jul 20, 1990 | Active |
| LAURANS A. & ARLENE H. MENDELSON CHARITABLE FOUNDATION, INC.Miami, FL · Active | Miami, FL | Nonprofit | Nov 26, 1996 | Active |
| WESTCHESTER AUTO CORP.Miami, FL · Inactive | Miami, FL | Corporation | Jan 14, 2000 | Inactive |
| 101 LUMMIS ROAD CORP.Hollywood, FL · Inactive | Hollywood, FL | Corporation | Sep 11, 2000 | Inactive |
| AVITECH ENGINEERING CORPORATIONHollywood, FL · Inactive | Hollywood, FL | Corporation | Aug 3, 2001 | Inactive |
| HEICO AEROSPACE C&A CORP.Hollywood, FL · Inactive | Hollywood, FL | Corporation | Sep 20, 2001 | Inactive |
| ENGINEERING DESIGN TEAM, INC.Hollywood, FL · Inactive | Hollywood, FL | Corporation | Nov 1, 2005 | Inactive |
| HEICO CORPORATIONHollywood, FL · Active | Hollywood, FL | Corporation | Jan 27, 1993 | Active |
| JET AVION HEAT TREAT CORPORATIONHollywood, FL · Inactive | Hollywood, FL | Corporation | Apr 9, 1993 | Inactive |
| HEICO-NEWCO, INC.Hollywood, FL · Inactive | Hollywood, FL | Corporation | May 30, 1995 | Inactive |
| ATI HEAT TREAT CORPORATIONHollywood, FL · Inactive | Hollywood, FL | Corporation | May 30, 1995 | Inactive |
| HEICO ENGINEERING CORPORATIONHollywood, FL · Inactive | Hollywood, FL | Corporation | Apr 24, 1996 | Inactive |
| HEICO-JET CORPORATIONHollywood, FL · Inactive | Hollywood, FL | Corporation | Apr 24, 1996 | Inactive |
| HEICO BEARINGS CORP.Hollywood, FL · Inactive | Hollywood, FL | Corporation | Aug 19, 1996 | Inactive |
| N.A.C. ACQUISITION CORPORATIONHollywood, FL · Inactive | Hollywood, FL | Corporation | Jul 25, 1997 | Inactive |
| HEICO AEROSPACE HOLDINGS CORP.Hollywood, FL · Active | Hollywood, FL | Corporation | Oct 10, 1997 | Active |
| MCCLAIN PROPERTY CORP.Hollywood, FL · Inactive | Hollywood, FL | Corporation | Jul 30, 1998 | Inactive |
| EWE WAREHOUSE INVESTMENTS IV, INC.Hollywood, FL · Inactive | Hollywood, FL | Corporation | Dec 3, 1998 | Inactive |
| KINETIC TECHNOLOGIES, INC.Miami, FL · Inactive | Miami, FL | Corporation | Mar 5, 1999 | Inactive |
| AIRCRAFT TECHNOLOGY, INC.Hollywood, FL · Active | Hollywood, FL | Corporation | Oct 18, 1990 | Active |
| FIDELITY MANAGEMENT CORP.Miami, FL · Active | Miami, FL | Corporation | Jan 21, 1992 | Active |
| AIR RADIO & INSTRUMENTS CORP.Miami, FL · Inactive | Miami, FL | Corporation | May 13, 1992 | Inactive |