Security companies in United States of America (USA) (7,156 found)
Siemens Healthineers is a pioneering medtech company with over 125 years of experience. With strengths in patient twinning, precision therapy, as well as digital, data, and artificial intelligence (AI), are well positioned to take on the biggest challenges in healthcare.
With approx. 4, 800 specialists in their team, SIGE Poland (Sii Poland) is the largest technology consulting, digital transformation, BPO and engineering services vendor in Poland. They provide consulting, advisory, IT and engineering services for enterprises.
Signal OS is a technology company, supported by Ghelamco, which is steadily gaining commercial real estate market share. The company was created to solve the needs of all the building’s business roles: facility managers, tenants, employees, and visitors. Signal OS has a variety of customised products.
Silent Sentinel are a UK manufacture of hi-specification PT platforms and surveillance equipment. Long range detection technologies offered include video, thermal, SWIR imaging and radar for intelligent video detection. Markets served include airports, harbours, borders and utilities including oil and gas. The detection range of the Silent Sentinel radar systems make it a cost effective solution for protecting large areas.
Silobreaker is a pioneering security and threat intelligence technology company, that provides powerful insights on emerging risks and opportunities in near-real time. It automates the collection, aggregation and analysis of data from open and dark web sources in a single platform, allowing intelligence teams to produce and disseminate high-quality, actionable reports in line with priority intelligence requirements (PIRs).
SilverNet is a UK based manufacturing company specialising in the design and manufacture of rugged, high performance cost-effective wireless and switching networking devices since 2005. Over which time SilverNet have gained an enviable reputation in the wireless market.
Siqura B.V. is the manufacturer of advanced video surveillance solutions. It provides a full range of network products based on an open technology platform that simplifies integration and installation. Siqura solutions offer a perfect blend of ease of use and processing power, enabling end users to optimise the effectiveness of their surveillance systems while reducing the total cost of ownership.
Sirius Insight delivers integrated and enhanced information to inform critical decisions in the marine environment. They do this by being experts in the maritime domain and pioneers in Artificial Intelligence - they are constantly developing more advanced solutions and adapting the latest technology to address emerging challenges in maritime situational awareness.
Sirix offers integrators around the world with remote security solutions like remote video surveillance, perimeter control, and remote control of specialized equipment. It also offers efficient solutions that specifically meet the protection, logistic support, and coordination needs of companies. Sirix also designs custom operational infrastructure for companies that require the centralization of information in real-time.
SITA is the globally renowned specialist in air transport communications and information technology.
SITTI is a private company committed to providing advanced technical solutions for Voice Communication Switching (VCS) systems and associated equipment. SITTI develops and manufactures communication systems with worldwide recognised high reliability for mission critical solutions.
Sittig Technologies GmbH is a renowned information technology and services company based out of Frankfurt, Germany. They provide security alarms, audio components, hardware and IT services.
Six Degrees Group is a cloud-led managed service provider. It works as a collaborative technology partner to businesses making a digital transition. Always placing clients at the heart of its strategy, Six Degrees’ passionate teams combine technical expertise and deep sector-specific knowledge to innovate, craft, and manage the right solutions to power their businesses.
With superior technological prowess and industry insight, SK Inc. C&C creates sustained customer value and emerge as a Smart ICT company setting global ICT trends. SK Inc. C&C provides total IT/ICT services spanning from consulting and planning to implementation and operation for the success of clients.
Based Split, Croatia, Skener d.o.o. specialises in providing integrated security solutions with today's leading technologies in digital video surveillance, access control, burglary systems and fire detection.
With more than 20 years experience on the security hardware market, JSCo SKICHEL is a well-known developer of innovative security products, designing and implementing comprehensive security solutions based on the company’s GYURZA-series security detectors and SKICHEL-series metal detectors. The company products efficiently protect critical infrastructure as well as key civil and military assets in more than 20 countries all over the world.
Skills 4 Security & Training Limited (S4ST) is a proven leading provider of accredited and bespoke specialist security training in the maritime & port, corporate, commercial security and hostile environment sectors. With head offices located in the United Kingdom, Skills 4 Security delivers training and security services both domestically and internationally.
Sky Sapience, founded in 2010, leads the revolution of tethered hovering technology providing unlimited surveillance and communications for the defense and enterprise markets. Their product line includes SHADO, a superior-performance surveillance camera system, the HoverMast series that offers one-of-a-kind aerial solutions for real time intelligence and communication and other high-tech surveillance drones.
Skywatch is an IoT solution that simplifies all the complexity for the users. Seamlessly integrate smart automation services and cloud recording with network cameras, environmental sensors, and door locks to make communication easier and deeper.
The Skywaves Security Group of Companies is committed to delivering cost-effective, efficient, and professional security services to their clients and partners. They will offer innovative and progressive security solutions. Their management team consists of experts in their field of work.
Smart Building Certification is designed to award buildings that have the IT infrastructure in place to measure a building and behavior. But it goes further to include measures for optimization and innovation. The SMART Building Certification also recognises and encourages Living Labs and the ongoing learning with partners in top universities.
Smart Choice Audiovisuals is a global supplier for events in the national market. Their range of services cover areas such as, audiovisuals, furniture, decoration, scenography, hostesses, among others.
Smart Grid Forums Ltd. are an independent conference production company serving the smart grid technical community. They monitor the market, conduct depth interviews with technical decision makers, and translate this into techno-commercial conferences that empower participants to accelerate their implementation plans and deliver exceptional results to their organisations.
SMART SHOOTER is a designer, developer, and manufacturer of innovative fire control systems that significantly increase the accuracy and lethality of small arms. Smart Shooter’s fire control solutions were designed to give soldiers and law enforcement officials a precision edge in any given firefight, but the systems bring a range of additional training and operational benefits and can be employed in a wide range of roles.
Browse security companies
Upcoming security events in United States of America (USA)
Technology Summit International 2025
- 9 - 11 Dec, 2025
- Irving, United States of America (USA)
Gartner IT Infrastructure, Operations & Cloud Strategies Conference 2025
- 9 - 11 Dec, 2025
- Las Vegas, United States of America (USA)
DISTRIBUTECH International 2026
- 2 - 5 Feb, 2026
- San Diego, United States of America (USA)
NDSS Symposium 2026
- 23 - 27 Feb, 2026
- San Diego, United States of America (USA)
Disasters Expo USA 2026
- 4 - 5 Mar, 2026
- Miami, United States of America (USA)
IDA Expo+ 2026
- 14 - 17 Apr, 2026
- Las Vegas, United States of America (USA)
Innovate Cybersecurity Summit 2026
- 19 - 21 Apr, 2026
- Marco Island, United States of America (USA)
12th National Conference On CFIUS
- 22 - 23 Apr, 2026
- Washington, United States of America (USA)
Global Security Exchange (GSX) 2026
- 14 - 16 Sep, 2026
- Atlanta, United States of America (USA)
PACK EXPO Chicago 2026
- 18 - 21 Oct, 2026
- ILLINOIS, United States of America (USA)
One system, one card
DownloadAligning physical and cyber defence for total protection
DownloadUnderstanding AI-powered video analytics
DownloadEnhancing physical access control using a self-service model
DownloadHow to implement a physical security strategy with privacy in mind
DownloadCLIQ Connect
DNAKE Access Control Terminals: Minimalist Design, Maximum Security!
Unlock the Future with Abloy Pulse: Keyless, Energy-Efficient Security Systems

