Experienced Multi-State Security Guard Services
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Experienced Multi-State
Security Guard Services
24/7 Security Support: Call us at 916-683-3605
35+
years experience
1000+
sites protected
500+
clients served
Founded in 1989, Comprehensive Security Services, Inc. (CSSI) specializes in providing multi-state security guard services to the public and private sectors in California and Nevada. Our fully licensed, bonded, and insured multi-state security services company employs numerous personnel, including pre-screened guards registered with the relevant state agencies, experienced managers, and a dedicated support staff. We offer a wide range of armed and unarmed security contractor services, routinely developing effective security solutions for shopping centers, schools, warehouses, hospitals, hotels, convention centers, construction sites, and other commercial properties.
24/7 Security Support: Call us at 916-683-3605
Our Trusted Private Security Contractor Services
From the beginning, our mission at CSSI has been simple: We have always sought to deliver the most responsive security services possible to the communities we serve. We have consistently achieved this goal over the last 35-plus years by implementing strict hiring standards to ensure that we have the highest-quality security guards providing our top-notch armed and unarmed security guard services. Whether you bring us on board to develop a security plan for a single event or you require us to provide daily security for your commercial building for the foreseeable future, our multi-state security services company is up to the challenge.
Here are just some of the superior security services you can count on us for:
- Armed Security Services Performed by Law Enforcement Officers (LEO)
- Armed and Unarmed Private Security Services Provided by Protection Officers (PO)
- Unarmed Private Security Services Carried Out by Security Officers (SO)
- Off-Duty Law Enforcement Officers

We also offer additional services, such as foot and vehicle patrols, security escorts, and more, to those in the public and private sectors throughout California and Nevada.
Past And Present Clients
Your Reliable Disaster and Recovery & Security Provider
In addition to extending many traditional multi-state security guard services to our clients, CSSI is one of the nation’s premier providers of disaster and recovery security. Following Hurricane Katrina in 2005, our dedicated team was brought in to protect displaced community members in Louisiana from 2006 through 2008. Our security company staffed a state-wide armed guard government contract that eventually reached over 400 personnel at its peak. The experience gained from this project alone gives us a tremendous competitive edge and serves as a testament to our capabilities in times of disaster and crisis. Fast forward to today, CSSI continues to provide armed security contractor services in Southern California and Nevada.
Why Choose Comprehensive Security Services Inc.?
In addition to offering a comprehensive range of security guard services, CSSI provides construction companies, educational institutions, healthcare facilities, film production agencies, and other commercial clients with numerous reasons to choose us for their security needs. Here is why you should strongly consider relying on CSSI:
CSSI also offers the most competitive rates in the industry, enabling our clients to keep their security costs under control without sacrificing the safety of their properties. Schedule a free consultation to discover the accessibility of our security services.
Contact CSSI to Serve as Your Comprehensive Multi-State Security Services Company
Would you like to learn more about CSSI and the multi-state security guard services that we can provide for your commercial property? We would be delighted to discuss your needs further so that we can create a customized security plan tailored to your specific needs. Contact us today to request a quote!
Comprehensive Security Services, Inc.’s
Five-Step Process
1
Schedule a complimentary consultation
for the appropriate security services.
2
Identify threats and vulnerabilities
and create a tailored security plan.
3
Receive a service quote and agreement.
4
Schedule security services
and introduce the security personnel to the client.
5
Commence the required security services.
Frequently Asked Questions
Find answers to several commonly asked questions about security services below.
Emergency deployment: Call us at 916-683-3605
