- A Photo IDentification
 - Grand Prairie - Offers photo ID badging systems, hardware and software, laminators, custom printing, supplies, and more. - America Key Boxes
- Kennedale - Specialising in high-capacity wall mount and mobile key hook cabinets for property management, security, locksmiths, car lots, and universities.
- Dal-Star Pursuit Specialist
- Irving - Law enforcement supply company.
- Integrated Security Systems
- Irving - Provides facility security services for clients in the commercial, industrial, and government marketplaces.
- International Security, Inc.
- Irving - Specialises in the design and construction of security products, including vehicle armouring, architectural, and access control.
- Interstate Security
- Fort Worth - Providing armed and unarmed security guards, as well as commissioned officer, concealed hand-gun, hunting education, and continued police education classes.
- Metroplex Control Systems, Inc
- Dallas - Systems integrator specialising in the corrections/detention marketplace with services from design build to turn-key.
- Mr. Lock Inc.
- Bedford - Supplies locks, padlocks, safes and locksmith services.
- Mul-T-Lock
- Dallas - High security locks, electronic entry, and lock service.
- National Bodyguard Network
- Roanoke
- Parkridge Security
- Dallas - Provides commissioned and non-commissioned guards for foot and bicycle patrol.
- Private Eye Enterprises, Inc.
- Dallas - Tape recorders, mini cameras, phone security, nanny cams, investigative books and videos, and much more.
- Protection Networks
- Dallas - Specialises in custom systems that include burglar alarms, fire alarms, sensors for doors and windows, and sensors with keypad and card access controls.
- Rapid Response Systems
- Dallas - With a variety of services available.
- Reliable Protection Systems
- Rowlett - Home and business security systems, burglar alarms, CCTV, stereos, vacuum systems and more.
- Sandia Imaging
- Arlington - Sells plastic card printers, systems, software, supplies, and printing services for id badges, access control cards, and more.
- Secure Source Incorporated
- Southlake - Specialises in executive protection, security consulting and training, and investigative services worldwide.
- Spy Centre
- Addison - Offering hidden cameras, tape recorders, wireless video, nanny cameras, phone line video, and more.
- T & G Identification Systems
- Fort Worth - Offers photo ID camera systems, software, supplies, and more.
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