Trusted Security Guard & Mobile Patrol Services for the Central Valley

CIS Security guard standing next to patrol vehicle.
CIS Security 40th Anniversary Logo - Serving Central Valley since 1986

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

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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.

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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.

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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.

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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.

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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

CIS Mobile Patrol vehicle parked at entrance to industrial facility.

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.

CIS Security Guard at HOA entrance for The Row.

HOA & Multifamily Security

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

CIS Security guard rear checking entrance to retail store.

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.

CIS Security guard doing a perimeter check around an office complex

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.

CIS Security Guard performing a perimeter check at a school.

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.

CIS Security Guard standing in lobby of hospital.

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.

Customer Service Manager Jason.

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.

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

Yes. Our professional security officers wear company uniforms that provide a visible security presence while presenting a professional appearance appropriate for commercial environments.

Yes. All security officers meet California licensing requirements and receive the training necessary to perform their duties professionally and responsibly.

Absolutely. Every property has unique security needs. We work with each client to develop a customized security program based on the facility, operating hours, level of risk, and security objectives.

We provide commercial security services for office buildings, industrial and manufacturing facilities, healthcare providers, schools, retail centers, food processing plants, apartment communities, and many other commercial properties throughout Central California.

Yes. Our mobile patrol officers perform scheduled or random patrols to help deter criminal activity, inspect properties, and provide an effective security presence for businesses that do not require a dedicated on site security guard.

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

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