Security Security Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Sort alphabetically by... Name City Alterman Inc. _ P O Box 700490San Antonio, TX 78270 0490(210) 496-6888 Member Since: 1956 Learn More | Visit Site | Show on Map Intruder Alert Systems of SA Inc. _ 100 Galleria FairSan Antonio, TX 78232 2258(210) 494-4900 Member Since: 1995 Learn More | Visit Site | Show on Map Knight Security Systems _ 401 Isom Rd.San Antonio, TX 78216 210-749-1034 Member Since: 2019 We are a high-end commercial security systems provider that specializes in video surveillance, access control, systems health monitoring, fire detection, 24hr service and much more. Learn More | Visit Site | Show on Map Ran-Gar Security Solutions _ 1035 McCauleySan Antonio, TX 78221 (210) 994-0078 Member Since: 2018 Our commissioned and non-commissioned security guards and off-duty police officers provide security to hotels, hospitals, construction sites, venues, parking garages, special events, traffic control, oil and gas facilities, as well as other locations Learn More | Show on Map RandD Security LLC _ 113 S. Plant Ave #DBoerne, TX 78006 210-317-4650 Member Since: 2020 Learn More | Visit Site If your business isn't here, contact our Membership Department at (210) 229-2103 or 2107 to find out about joining.