| Alliant Techsystems, Inc. | West Virginia | state | 2007 | undisclosed | | tax credit/rebate |
| Northrop Grumman Systems Corporation | Maryland | state | 2007 | $331,077 | | tax credit/rebate |
| Alliant Techsystems, Inc. | Maryland | state | 2007 | $24,799 | | tax credit/rebate |
| ATK Space Systems, Inc. | Ohio | state | 2007 | undisclosed | | tax credit/rebate |
| PROGRAMMED COMPOSITES, INC. | California | state | 2006 | $28,791 | | training reimbursement |
| NORTHROP GRUMMAN SPACE TECHNOLOGY | California | state | 2006 | $1,575,890 | | training reimbursement |
| Northrop Grumman #5 | Maryland | state | 2006 | $1,500,000 | | grant/loan hybrid program |
| Northrop Grumman Information Technology, Inc. | Virginia | state | 2006 | $500,000 | | grant |
| Northrop Grumman Corporation & Subsidiaries | Arizona | state | 2006 | undisclosed | | enterprise zone |
| Northrop Grumman Corporation & Subsidiaries | Arizona | state | 2006 | undisclosed | | enterprise zone |
| Northrop Grumman Corporation & Subsidiaries | Arizona | state | 2006 | undisclosed | | enterprise zone |
| Northrop Grumman Corporation & Subsidiaries | Arizona | state | 2006 | undisclosed | | enterprise zone |
| Northrop Grumman Systems Corporation | Maryland | state | 2006 | undisclosed | | tax credit/rebate |
| Northrop Grumman Systems Corporation | Maryland | state | 2006 | undisclosed | | tax credit/rebate |
| Northrop Grumman Systems Corporation | Maryland | state | 2006 | undisclosed | | tax credit/rebate |
| Northrop Grumman Systems Corporation | Maryland | state | 2006 | undisclosed | | tax credit/rebate |
| Northrop Grumman Systems, Corp. | United States | federal | 2006 | | $255,000,000 | federal tax-exempt bond |
| Northrop Grumman Ship Systems Inc. | United States | federal | 2006 | | $200,000,000 | federal tax-exempt bond |
| AEC ABLE ENGINEERING COMPANY, INC. | California | state | 2005 | $4,290 | | training reimbursement |
| NORTHROP GRUMMAN CORPORATION | California | state | 2005 | $695,968 | | training reimbursement |
| Northrop Grumman Mission Systems | California | state | 2005 | undisclosed | | training reimbursement |
| Northrop Grumman Corporation #4 | Maryland | state | 2005 | $1,500,000 | | grant/loan hybrid program |
| Northrup Grumman Corp. & Subs | Arizona | state | 2005 | undisclosed | | enterprise zone |
| Northrup Grumman Corp. & Subs | Arizona | state | 2005 | undisclosed | | enterprise zone |
| Northrup Grumman Corp. & Subs | Arizona | state | 2005 | undisclosed | | enterprise zone |
| Northrup Grumman Corp. & Subs | Arizona | state | 2005 | undisclosed | | enterprise zone |
| Orbital Sciences Corporation | Arizona | state | 2005 | $55,845 | | training reimbursement |
| Orbital Sciences Corporation | Arizona | state | 2005 | $266,366 | | training reimbursement |
| Northrop Grumman Systems Corporation | Maryland | state | 2005 | $434,174 | | tax credit/rebate |
| Alliant Techsystems, Inc. | Maryland | state | 2005 | $26,507 | | tax credit/rebate |
| NORTHROP GRUMMAN CORPORATION | California | state | 2004 | $329,296 | | training reimbursement |
| NORTHROP GRUMMAN MISSION SYSTEMS | California | state | 2004 | $723,092 | | training reimbursement |
| NORTHROP GRUMMAN SPACE TECHNOLOGY | California | state | 2004 | $3,435,858 | | training reimbursement |
| Northrop Grumman Corporation #3 | Maryland | state | 2004 | $1,500,000 | | grant/loan hybrid program |
| Northrop Grumman Systems Corp. | Florida | state | 2004 | $475,000 | | tax credit/rebate |
| Northrop Grumman | Arizona | state | 2004 | $182,433 | | training reimbursement |
| Windermere Information Technology Systems, LLC | Maryland | state | 2004 | $23,778 | | training reimbursement |
| Northrop Grumman PRB Systems, Inc. | Maryland | state | 2004 | $10,931 | | training reimbursement |
| Northrop Grumman Systems Corporation | Maryland | state | 2004 | $476,232 | | tax credit/rebate |
| Alliant Techsystems Inc. | Maryland | state | 2004 | $84,404 | | tax credit/rebate |
| NORTHROP GRUMMAN SYSTEMS CORPORATION | California | state | 2003 | $1,333,800 | | training reimbursement |
| Northrop Grumman Corporation #3 | Maryland | state | 2003 | $1,500,000 | | grant/loan hybrid program |
| Northrop Grumman Corporation #2 | Maryland | state | 2002 | $1,500,000 | | grant/loan hybrid program |
| TRW, Inc. | New York | state | 2002 | $148,100 | | enterprise zone |
| Northrop Grumman Corporation #1 | Maryland | state | 2001 | $1,500,000 | | grant/loan hybrid program |
| Northrop Grumman Corporation | Florida | state | 1999 | $402,000 | | grant |
| Northrop Grumman Corporation | Florida | state | 1997 | $410,000 | | tax credit/rebate |
| Trw Inc | Michigan | state | 1986 | undisclosed | | property tax abatement |
| Trw Inc | Michigan | state | 1975 | undisclosed | | property tax abatement |
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