Trusted Security Guard & Mobile Patrol Services for the Central Valley
Protect your employees, customers, and property with professional security solutions tailored to your business. CIS Security provides licensed security guards, mobile patrol, and customized protection programs for commercial facilities throughout Central California.

Protecting Businesses Across Fresno & Central California
Every business has unique security challenges. From controlling access and protecting valuable assets to creating a safe environment for employees and visitors, effective security starts with a plan built around your property and operations.
For over 40 years, CIS Security has provided professional standing security guards and mobile patrol services for businesses throughout Fresno and Central California. Whether you manage an office building, industrial facility, healthcare campus, retail center, school, or food processing plant, our team delivers dependable security solutions tailored to your needs.
Our Security Services
Standing Security Guard
On-site officers stationed at your property to monitor access, deter incidents, and respond immediately to any concern/ We provide a visible, reliable presence exactly where you need it.
Mobile Patrol
Scheduled or randomized patrols across your property or portfolio, giving you consistent coverage and documented checks without the cost of a full-time guard.
Construction Site Security
Protect your job site from theft, vandalism, and unauthorized access with trained security guards who patrol equipment, materials, and property during off hours when your crew isn’t there.
Fire Watch Security
Stay protected and compliant when your fire alarm or sprinkler system is down. Our trained officers conduct regular monitored walkthroughs until your system is fully restored.
Event Security
Keep your event safe and organized with trained security guards for corporate functions, school events, carnivals, and community gatherings, providing crowd control and a visible presence from start to finish.
Industries We Serve

Industrial & Manufacturing Security
Safeguard equipment, inventory, and personnel with security officers experienced in perimeter control, loss prevention, and safety protocols for warehouses, plants, and industrial facilities.

HOA & Multifamily Security
Give residents peace of mind with patrol and gate-access security tailored to residential communities, apartment complexes, and HOA-managed properties.

Retail Security
Reduce theft and protect your staff and customers with security guards skilled in loss prevention, de-escalation, and maintaining a safe, welcoming shopping environment.

Commercial Office Security
Protect your employees, visitors, and assets with professional security guards trained in access control, visitor management, and after-hours monitoring for office buildings and corporate campuses.

School Security
Provide a safer campus with trained security personnel experienced in access control, emergency response, and daily presence that reassures students, staff, and parents alike.

Healthcare Security
Keep patients, staff, and visitors safe with security guards trained in de-escalation, emergency response, and the unique regulatory and safety demands of hospitals and medical facilities.

Proudly Serving Fresno & Central California Businesses
CIS Security provides commercial security services for businesses throughout Fresno and Central California. From corporate offices and healthcare facilities to industrial sites, retail centers, schools, and food processing plants, our security professionals help organizations protect what matters most.
Our service area includes Fresno, Clovis, Madera, Visalia, Tulare, Hanford, Kingsburg, Selma, Reedley, Merced, Turlock, and surrounding Central Valley communities.
Areas We Serve
Fresno
Clovis
Madera
Merced
Modesto
Visalia
Tulare
Hanford
Turlock
Stockton
Los Banos
Reedley
Lemoore
Porterville
Selma
Dinuba
Sanger
Fowler
Kingsburg
Common Questions About Our Security Services
Protect Your Business with a Trusted Commercial Security Partner
Whether you need standing security guards, mobile patrol, or a customized security solution, CIS Security is ready to help. Contact our team today to discuss your security needs and request a free, no obligation quote.
Call or submit a request to get a clear, honest quote.
What Our Customers Say
Real testimonials from real clients using CIS Security.
★★★★★
CIS is an excellent company. We have been collaborating on projects and jointly serving customers for many years. They are very responsive, detailed, and solution oriented. We’ve enjoyed our long term partnership and would highly recommend them.
Sal Silva
MS Commercial Property Management
★★★★★
I am a commercial property manager, and CIS Security has provided security services for the majority of my properties for several years. Their team has consistently delivered reliable, professional service and has been an important partner in maintaining safe and secure environments for tenants, visitors, and staff.
Debbie Scharton
Commercial Property Manager
★★★★★
I didn’t catch the security guards name but he was servicing TIME SQUARE in Fresno tonight and he helped me unlock my car door. He was patient and absolutely amazing! Thank you so much for helping me get back to my family with the Chinese food.
Kristen Wagner
Local shopper
★★★★★
The CIS Security team is exceptional. They are very professional, attentive, and provide a strong sense of safety at a fair price.
Matt Spenhoff
MS Commercial Property Management
★★★★★
I take it for granted that the job will get done with all security companies that we use. I stick with CIS because of the fantastic customer service we receive from Roy Hernandez.
A. Goldfarb
Vice President, Multi-Family
Manco Abbott, Inc.
★★★★★
When the need for guard services arises, even on short notice, it’s comforting to know that we can rely on the support of CIS Security. In today’s business world, it’s critical to establish business partnerships built on trust. We trust the services of CIS Security to be there anytime and anywhere we might need them.
D. Ashjian
SVP Risk Management
Educational Employees Credit Union