LAST UPDATED August 02, 2025

Top Security Systems Firms in United States

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  • Top Tech Locksmith

    Overland Park - United States

    We offer 24/7 availability, expert locksmiths, affordable rates, and fast, reliable service you can trust. Our vision is to be Kansas’s most trusted locksmith company, delivering exceptional service, innovative security solutions, and unmatched

  • NATION SECURITY

    Miami - United States

    Nation Security is a Florida-based security company offering reliable guard services, mobile patrols, and fire watch coverage. Whether it’s retail, commercial, or residential, their trained personnel provide consistent protection and support. The c

  • Locksmith Knights Raleigh

    Raleigh - United States

    At Locksmith Knights Raleigh, we’re proud to offer the best locksmith services in town. We provide prompt and reliable help for all your locksmith needs — from simple lockouts to complex installations, we’re here for you. For years, we have

  • 10-8 Video

    Fayetteville - United States

    10-8 Video is a trusted supplier of law enforcement cameras. We offer high-quality body cameras for sale, video storage servers, and in-car video systems. Designed for police departments and first responders, our products ensure reliable digital evid

  • Keymex Locksmith

    San Antonio - United States

    We are a state licensed locksmith in San Antonio, Texas. We love serving the great people of San Antonio. If ‘you are looking for an insured, licensed, and background checked locksmith with fair & honest pricing, we are a great choice. Contact us t

  • Security Camera Installation, CCTV, Video Surveillance Installations ||Business Hours: Mon - Fri: 8am - 5pm ||Payment Methods: All Credit Cards, Cash, Checks ||Year Establish: 2019

  • Burlington Security Pros is a home security business for residents of Burlington, MA. We offer security installation, cameras, and 24/7 Monitoring.

  • Warrior Security is your trusted local security partner in Fort Lauderdale. We offer comprehensive, customized security plans with 24/7 monitoring, armed/unarmed guards, mobile patrols, and VIP protection. Our licensed and background-checked officers

  • True Protection LLC

    Houston - United States

    True Protection is the leading security system provider with 5 Texas locations. We provide home and business owners with customized home security systems to fit a wide range of needs. Whether you’re in Austin, San Antonio, Houston, Dallas/Fort Wort

  • Gen-stick

    Broussard - United States

    At Gen-Stick, we are dedicated to providing a seamless shopping experience with speed, convenience, and customer satisfaction at the core of our business. We know how important it is to receive your order quickly, which is why we ship all products wi

202 Firms
  • Security Systems Firms in United States

    Keeping people, homes, and businesses safe is very important, and having the right security team can give you peace of mind. SEMFirms has gathered the top Security Systems that offer alarms, cameras, access control, and monitoring services to protect what matters most. These companies install and maintain devices that watch over buildings and alert you if there is trouble. We picked them by checking customer reviews, reading safety certifications, and verifying they use updated technology like smart cameras and sensors. We also look at how they respond to emergencies and if they offer 24/7 monitoring. Pricing is key: we make sure they offer clear plans without hidden monthly fees. Communication matters: we read feedback to see if they answer questions quickly and guide customers on how to use the system. By doing this, we help you find a partner who takes security seriously and offers reliable protection. You don’t need to worry about complex installations because these experts handle the setup and maintenance. Our list makes it easy to choose a security team you can trust.

    Choosing a strong security partner can protect your property and give you confidence. We check if each Security Systems on our list has trained technicians who can install alarms and cameras correctly. We verify that they have fast response times if an alert goes off and that they work with local police for quick help. We also confirm they offer clear timelines, like how long installation takes and when maintenance visits happen. Before adding a company to our page, we read real testimonials to see if customers felt safer and if any issues were fixed fast. We look at how many years each company has been in business and their record for reliable monitoring. We update our list often, adding new companies with excellent feedback and removing any that fall short. When you choose from our list, you can trust your security needs will be handled professionally and promptly. Now you can enjoy peace of mind, knowing your home or business is in good hands.