| Cherokee Alarm Systems LLC | Blacksburg | SC | $0 |
| Chesapeake Security & Wiring Co. | Mechanicsville | MD | $0 |
| Chillicothe Fire & Security Inc. | Chillicothe | OH | $0 |
| Coban Technologies, Inc. | Missouri City | TX | $0 |
| Comm-tronics, Inc. | Glen Burnie | MD | $0 |
| Comtech Communications Of Georgia, Inc. | Stockbridge | GA | Subcontractor |
| Cook Solutions Group Inc. | Portland | OR | $0 |
| Corps Security Inc. | Mechanicsville | MD | $0 |
| Coyote Cabling LLC | Las Cruces | NM | $0 |
| Crimetek Intergrated Security Systems, LLC | Belle Chasse | LA | $0 |
| C & R Security Systems, Inc. | Toa Alta | PR | $0 |
| Crutcher Technology Group LLC | Kingsville | MO | Subcontractor |
| Custom Communications Inc. | Rochester | MN | $0 |
| Custom Designed Security Systems Inc. | Bushnell | FL | $0 |
| Custom Security Industries Inc. | Richmond Hill | ON | $0 |
| D/a Central, Inc. | Oak Park | MI | Subcontractor |
| Data Plus Security LLC | Bessemer | AL | Subcontractor |
| Dea Security Systems Co. Inc. | Belmont | CA | $0 |
| Defenguard Systems S.r.o. | Martin | | $0 |
| Delta Security Inc. | Colorado Springs | CO | Subcontractor |
| Dependable Alarm Systems, Inc. | Escondido | CA | $0 |
| Detection Security Company, Inc. | Mattoon | IL | $0 |
| D. H. Pace Company, Inc. | Tempe | AZ | $0 |
| Dialcom System Services, Inc. | Escondido | CA | $0 |
| Diamond Gate Technologies LLC | Manassas | VA | $0 |
| Digital Applications, Inc. | Hampton | VA | $0 |
| Digitus Biometrics, Inc. | Savannah | GA | Subcontractor |
| Directec LLC | Hollsopple | PA | Subcontractor |
| D.j. Enterprises, Inc. Of Virginia | Alexandria | VA | $0 |
| Donald Malone | Kyle | TX | $0 |
| Douglas Electronics Co. Inc. | Louisville | KY | $0 |
| Dyck Security Services Inc. | Port Huron | MI | $0 |
| Dynseguridad LLC | Miami | FL | $0 |
| Eai Security Systems, Inc. | Rockville | MD | $0 |
| Eastec Inc. | Neptune | NJ | $0 |
| East Texas Alarm, Incorporated | Tyler | TX | $0 |
| Efficiency Integrated Systems, LLC | Thornton | CO | $0 |
| Electro Micro Security Systems, Inc. | Durham | NC | $0 |
| Electronic Security And Control Systems, Inc. | Bridgeport | CT | $0 |
| Electronic Security Services Inc. | Upper Marlboro | MD | $0 |
| Electronic Systems Installers, Inc. | York | PA | $0 |
| Electronic Technology Inc. | Lenexa | KS | $0 |
| Electro Watchman Inc. | Mandan | ND | $0 |
| Emergent Lighting Systems LLC | Harvest | AL | Subcontractor |
| Empower Security Contractors Corp. | San Jose | CA | $0 |
| Engineered Monitoring Systems | Rancho Cordova | CA | $0 |
| Everon, LLC | Taunton | MA | Subcontractor |
| Facility Control Systems, Inc. | Saint Charles | MO | $0 |
| Falco Alarm Company Of Stillwater, Inc. | Stillwater | OK | $0 |
| Fayette Electrical Service Inc. | Winchester | KY | Subcontractor |
| Fire Detection Systems Inc. | Hastings | NY | $0 |
| Fire Protection Services, L.L.C | Omaha | NE | Subcontractor |
| Fire Security Electronics & Communications, Inc. | Phoenix | AZ | $0 |
| Fire Security Technologies Inc. | Farmingdale | NJ | $0 |
| Firetron Inc. | Stafford | TX | Subcontractor |
| Fleenor Security Systems, Inc. | Johnson City | TN | Subcontractor |
| F.P.S. Of Onalaska, Inc. | Bangor | WI | $0 |
| Gappa Security Solutions LLC | Waupun | WI | $0 |
| Gaynor Telesystems Inc. | Redding | CA | $0 |
| Giant Security, Inc. | New York | NY | $0 |
| Global Surveillance System Inc. | Chantilly | VA | $0 |
| Goitia, Jose G | San Juan | PR | $0 |
| Granite Security Inc. | Gaithersburg | MD | $0 |
| Grupo Itd, S.a. | Guatemala | | Subcontractor |
| Guardian Protection Services, Inc. | Warrendale | PA | $0 |
| Guard Tronic Inc. | Fort Smith | AR | $0 |
| Hawkeye Alarm & Signal Co. | Waterloo | IA | $0 |
| Holmes Electric, Inc. | Fayetteville | NC | $0 |
| Home Works Inc. | North Platte | NE | $0 |
| Hope Fire Extinguisher Service Inc. | Emmet | AR | $0 |
| Hughes Integrated Systems Inc. | Indianapolis | IN | $0 |
| Hunter Security Inc. | Daphne | AL | $0 |
| Id Card Systems Incorporated | Twinsburg | OH | $0 |
| Identification And Security Integrators, Inc. | Woodland Hills | CA | $0 |
| I H R Security, LLC | Wichita Falls | TX | $0 |
| Infinite Technologies, L.L.C. | Detroit | MI | $0 |
| Infinity Solutions, Inc. | Washington | DC | $0 |
| Integrated Access Control Services Inc. | Manassas | VA | $0 |
| Integrated Security Resources, Inc. | Meridian | ID | $0 |
| Integrated Security Solutions, LLC | Hastings | NE | $0 |
| Integrated Security Technologies LLC | Atlanta | GA | Subcontractor |
| Integrated Technologies L.L.C | Bladensburg | MD | $0 |
| Integrated Technology & Security LLC | Hartford | SD | $0 |
| Integrity Sig LLC | Clinton Township | MI | Subcontractor |
| International Equipment Company, Inc. | Chattanooga | TN | Subcontractor |
| Interstate Alarm Company | Missoula | MT | $0 |
| Intervid, Inc. | Frederick | MD | $0 |
| Invision Technologies, LLC | Albany | GA | $0 |
| Ironshield Security LLC | Largo | FL | $0 |
| J Hubner LLC | Oneonta | NY | Subcontractor |
| Jm Electronic Engineering, Inc. | Pflugerville | TX | $0 |
| JMG Security Systems, Inc. | Fountain Valley | CA | $0 |
| John D. Havard & Associates, Inc. | Abilene | TX | $0 |
| Jozygee LLC | West Richland | WA | $0 |
| Kastlesystems | Philadelphia | PA | $0 |
| Keyhole Security Inc. | Wenatchee | WA | $0 |
| Key Security Inc. | Alpine | CA | Subcontractor |
| Keystone Global Services, LLC | Lutz | FL | $0 |
| Kit Network Cabling, Inc. | Lebanon | PA | $0 |
| KLC Custom Electronics, LLC | Texarkana | TX | $0 |
