| Category | Time Period | Market Size in $millions |
| Federal Government Budget for Homeland security for fiscal year 2006 | 1 Year | $49,946 |
| Homeland security budget for Non-Federal Government | 1 Year | $28,230 |
| Homeland Security key area - Aviation security | 5 year | $8,405 |
| Homeland Security key area - Port and Maritime Security | 5 year | $6,930 |
| Homeland Security key area - Ground Transport Security | 5 year | $1,295 |
| Homeland Security key area - Border Security | 5 year | $4,180 |
| Homeland Security key area - Physical Infrastructure Protection | 5 year | $8,140 |
| Homeland Security key area - Cyber Security | 5 year | $8,100
|
| Homeland Security key area - Emergency Preparedness and Response | 5 year | $14,350 |
| Homeland Security key area - Bioterrorism Prevention | 5 year | $9,900 |
| Homeland Security key area - Nuclear and Radiological Prevention | 5 year | $3,400 |
| Homeland Security key area - Domestic and Foreign Intelligence | 5 year | $27,600 |
| Homeland Security key area - Counterterrorism and Law Enforcement | 5 year | $22,600 |
| Fiscal 2006 Budget for DHS Mission Area- Intelligence and Warning | 1 Year | $431 |
| Fiscal 2006 Budget for DHS Mission Area- Border & Transport Authority | 1 year | $19,285.80 |
| Fiscal 2006 Budget for DHS Mission Area- Domestic Counterrorism | 1 year | $4,468 |
| Fiscal 2006 Budget for DHS Mission Area- Protecting Critical Infrastructure and Key assets | 1 year | $15,632.30 |
| Fiscal 2006 Budget for DHS Mission Area- Defend against Catastrophic Threats | 1 year | $3,893.20 |
| Fiscal 2006 Budget for DHS Mission Area- Emergency Preparedness and Response | 1 year | $6,121.6 |
