California Security Services

A SHIELD FOR YOUR SUCCESS®

Tarian is the trusted and rapidly expanding security provider proudly serving California. Building on the legacy of HSS Security, Tarian continues to deliver professional security guarding, advanced technology integration, risk advisory services, and specialized healthcare security support throughout the state.

 With deep roots in California and more than 60 years of combined industry expertise, Tarian is committed to protecting the people, property, and critical infrastructure that drive California’s dynamic economy. Our full-service security solutions include highly trained security personnel, integrated security technology, access control systems, medical equipment management, and risk consulting services.

Ontario Office

3200 Guasti Rd., Ste. 100
Ontario, CA 91761
800-372-7121

Security Services Across California

Tarian delivers dependable and customized security services across Southern California and beyond, covering Ontario, Los Angeles, San Diego, Riverside, and surrounding areas.

 

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  • Security Guard Services: Professional, licensed security officers protecting your people and assets.
  • Security Technology & Integration: Advanced surveillance, access control, alarm, and monitoring systems tailored to your needs.
  • Global Security Operations Center (GSOC) as a Service: Tarian provides advanced GSOC services through our strategically located centers in Louisville, KY, and Denver, CO.
  • Risk Advisory & Assessment Services: Expert analysis and mitigation strategies for emerging risks.
  • Threat Preparedness Training: Tailored programs to enhance readiness and response capabilities.
  • Medical Equipment Management: Specialized services to support the maintenance, security, and reliability of critical healthcare equipment.

Join Our California Team

Make an impact. Protect your community. Build your future with Tarian.

Tarian offers rewarding careers for security officers, technology specialists, and medical equipment service professionals across California.

Get a Quote

Ready to strengthen your security program? Take the first step and talk to us about how we can help safeguard what matters most for you.

Clients We Proudly Serve Across California

Tarian is honored to serve a wide range of industries across the Golden State’s diverse landscape.

 

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  • Aviation: Securing airports, aviation vendors, and related facilities across the great state of California.
  • Business Improvement Districts and Commercial Real Estate: Protecting office towers, mixed-use developments, residential communities, and retail centers.
  • Education: Providing campus security for K-12 schools, universities, and technical institutions across California.
  • Healthcare: Delivering specialized security programs for hospitals, healthcare systems, medical centers, and outpatient facilities.
  • Technology and R&D: From Silicon Valley to San Diego, we safeguard tech campuses, research laboratories, data centers, and innovation hubs.
  • Events and Large-Scale Venues: Ensuring safety and smooth operations at major events, stadiums, arenas, convention centers, and festivals throughout California.
  • Government and Public Sector: Professional protection for public facilities, utilities, and transportation infrastructure.
  • Shelters and Social Services: Providing compassionate and reliable security services for shelters, transitional housing, and social service organizations.

Tarian: Trusted to Protect California

Building on the legacy of HSS and powered by Tarian’s national expertise, we stand Trusted to Protect California’s people, businesses, and critical infrastructure.

License# 121683, HSS California Inc