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We Value the Safety of Our Clients

We Offer a Wide Variety of Services:


• Security Guard Training

• Firearms Training

• Security Guard Services

• Registered Process Server

• Private Investigation Services


Invest in Security Solutions From Leading Experts

When it comes to your security, nothing less than the best service provider will do. It’s important to turn to leading experts in the industry, and OSOS SECURITY SERVICES is your top choice in California.


We are a BSIS-licensed private security company serving clients across California. Since our founding in 2011, we’ve provided top-notch security services that are customized according to your needs and designed to make a difference in your life. Our services include guard card training, firearms training, security solutions, private investigation, and registered process services.


When you choose us, you choose a team of highly trained and experienced individuals who uphold the highest standards of reliability, integrity, and professionalism at all times. Explore our site to learn more about our services and contact us. 

What We Offer

BSIS Firearms Training Courses

We offer BSIS-approved exposed firearm permit training and requalification courses for professionals in the security, alarm, and private investigation industries. We also offer security guard training and certification programs. Learn more about our firearms training and security guard training services today.

8-Hour Guard Card Course

This course is the first step required to getting a guard card. It consists of 4-hours of required Power-to-Arrest training and 4-hours of required Weapons of Mass Destruction training. The course is based on the California Department of Consumer Affairs' Power to Arrest Training Manual and the California State BSIS course syllabus.

40-Hour Guard Card Course

This course meets the State of California Bureau of Security and Investigative Services (BSIS) 40 hour required training for California Security Guards. This package includes the initial 8-hour California guard card training required to start the application process and eight 4-hour online courses that combine to fulfill the thirty-two (32) hour Mandatory training requirement for California Security Guards. The course is based on the California State BSIS course syllabus.

Security Services

Our team is comprised of licensed and highly-trained security specialists who are committed to providing you with exceptional services. We offer uniformed security officers, special events security, security patrol services, and more. Visit the corresponding page for additional information.

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