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View SECURITY SYSTEMS LIMITED's top competitors like Advanced Design Technology Pty Ltd, Bay Alarm Company, and Chubb Fire & Security New Zealand.

G4S
G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security solutions that allow clients to focus on their core business. Through a global workforce of approximately 800,000 people, we leverage best practices in communities all over the world. With revenues at approximately $20 billion, we are supported by efficient processes and systems that can only come with scale to help deliver our promise locally: keeping people safe so our communities can thrive. For more information on G4S, visit www.g4s.com.
UK
Public
$20B Revenue
http://www.g4s.com
118.2K Employees
LSE:GFS Ticker
Hikvision
Founded in 2001, Hikvision focuses on integrated security and scenario-based digitalization. Propelled by the AI-powered Internet of Things (AIoT), the Company remains committed to serving various industries with its machine perception and artificial intelligence technologies. Guided by the core values of 'Professionalism, Reliability, and Integrity', Hikvision explores innovative ways to better perceive and understand the world. It empowers visionary decision-makers and practitioners to work together to enhance safety and advance sustainable development around the world. The Company's business grows through technologies that are deeply rooted in innovation and an increasingly diverse range of AIoT products and solutions. With an open ecosystem, Hikvision is empowering the industry and advancing with its partners. The Company currently provides products and services to over 180 countries and regions. In 2024, Hikvision's revenue was RMB 92.50 billion (USD 12.87 billion).
Hangzhou, CN
Private
$13.1B Revenue
https://www.hikvision.com/en/
9.5K Employees
Bay Alarm Company
Bay Alarm is a family-owned national security company in operation since 1946. We currently serve and secure over 150,000 residential and commercial customers and employ over 1,200 security professionals. We're a third-generation family business with simple principles: work hard, be honest, treat each other like family, and deliver the best service possible. We understand that excellence starts with our employees. That's why we've developed Bay University—our in-house training facility where employees train over 2,000 hours. We work closely with local organizations and government to ensure customer safety. In doing so, our affiliates allow us to stay up to date with the latest security measures. The communities that we secure are the same communities where we live. We know what's at stake and are invested to protect it. Visit our Careers Page to view job descriptions and apply: https://www.bayalarm.com/company/careers/
Concord, California, US
Private
$225.4M Revenue
http://www.bayalarm.com
847 Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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