- American Video Equipment
 - Houston - Designs and manufactures a range of closed circuit television (CCTV) equipment and accessories. - BP Security & Investigations
- Houston - Provides security guards, personal protection, and investigative services to corporations and government agencies throughout the Houston metropolitan area.
- EYE-D Cam
- Houston - Security camera that records both the customer and their id card.
- Guidry Group
- The Woodlands - Specialising in security consulting, investigations, executive protection, body guards, and Internet security.
- I-View Technologies@
- Houston
- National Security Academy
- Houston - Provides security and safety training for security guards, gun owners, private investigators, and bodyguards in the greater Houston area.
- National Security Safe Co
- Houston - Offers safes and gun safes for security.
- Safety Vision
- Houston - Designer and manufacturer of closed circuit television cameras (cctv) and digital video surveillance equipment.
- Texcalibur Car Armor Kits
- Houston - Texcalibur manufactures and installs armour kits on vehicles of all makes and models.
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