| LOCKHEED MARTIN OPERATIONS SUPPORT, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | May 8, 1980 | Inactive |
| LOCKHEED MARTIN INTEGRATED SYSTEMS, INC.Orlando, FL · Inactive | Orlando, FL | Corporation | Aug 2, 1982 | Inactive |
| LOCKHEED MARTIN LOGISTICS MANAGEMENT, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Aug 4, 1983 | Inactive |
| PECONIC I CORPORATIONLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 15, 2005 | Inactive |
| LOCKHEED MARTIN AIRCRAFT CENTER, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | May 7, 2012 | Inactive |
| PECONIC I CORPORATIONLocation not reported, FL · Inactive | Location not reported, FL | Nonprofit | Dec 17, 2013 | Inactive |
| LOCKHEED MARTIN SERVICES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 3, 1993 | Inactive |
| INFORMATION NETWORK SYSTEMS, INC.Orlando, FL · Inactive | Orlando, FL | Corporation | Dec 15, 1997 | Inactive |
| LOCKHEED MARTIN ADVANCED ENVIRONMENTAL SYSTEMS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | May 6, 1998 | Inactive |
| LOCKHEED MARTIN TRAINING SOLUTIONS, INC.Orlando, FL · Inactive | Orlando, FL | Corporation | Mar 20, 1984 | Inactive |
| LOCKHEED MARTIN GYROCAM TECHNICAL SERVICES, INC.Orlando, FL · Inactive | Orlando, FL | Corporation | Dec 28, 2006 | Inactive |
| SIKORSKY PRODUCTS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | May 15, 1985 | Inactive |
| SIKORSKY SUPPORT SERVICES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | May 12, 1986 | Inactive |
| MARTIN MARIETTA INFORMATION TECHNOLOGY, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Oct 10, 1986 | Inactive |
| LOCKHEED MARTIN TECHNICAL OPERATIONS COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 6, 1988 | Inactive |
| LOCKHEED MARTIN ENGINEERING & SCIENCES COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Jul 5, 1989 | Inactive |
| OAKWOODS MOBILE HOME SUBDIVISION, INC.Quincy, FL · Inactive | Quincy, FL | Corporation | Sep 11, 1998 | Inactive |