- TKF Inc
- TMG Intl
- Total Control Training Inst
- TPG Security Consulting LLC
- Treadstone Group Inc
- Tri County Security Corp
- Tritech Equipment Intl
- TSD Security Consulting Grp
- U S Security Inc
- Unique Protection
- Universal Network Inc
- Vector Security
- Victor Plessner Intl Security
- Video Shack Security
- Vintage Security LLC
- Vitale Consulting Group
- VSM Private Patrol
- W L Bliss Assoc Inc
- Wackenhut Services Inc
- Wayne Automation Systems Co
- We Enterprises
- William Brill Assoc Inc
- William R Kelly Assoc Inc
- Wintara Inc
- World Security Group
- Wornall Secure Business Soltns
- WRI Security Investigations
