Keep your warehouse, storefront, or home protected with local guards licensed by California's Bureau of Security and Investigative Services (BSIS) in Ontario. We run unarmed guards, mobile patrol, fire watch, and 24/7 dispatch across San Bernardino County, from the distribution centers near Ontario International Airport to the shops at Ontario Mills. Bonded, insured, and trusted by 1,250+ local property owners since 1995.
CAL Security Group runs BSIS-licensed guards across Ontario, from Ontario Ranch and Guasti to the warehouse rows off Milliken and Vineyard Avenues. Our officers know Euclid Avenue, Holt Boulevard, and the freight traffic feeding I-10 and I-15, so they read each site fast and respond without waiting on a distant office.
Cargo theft and after-hours break-ins hit Inland Empire distribution centers hard, so we build custom coverage for your Ontario property, its hours, and its real risks. Every officer is BSIS licensed, bonded, and insured, backed by supervisors who check posts through the night.
Licensed guards for Ontario warehouses, retail centers, offices, and events, dispatched from right here in the Inland Empire.
Always-on coordination, escalation, and real-time updates.
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Trained, uniformed officers for access control, deterrence, and front-line presence.
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Marked, GPS-tracked patrols across large or multi-site properties.
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Scheduled and random patrols with logged, verifiable checkpoints.
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Live 24/7 CCTV monitoring, alarm verification, and dispatch.
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Certified fire watch during outages, hot work, and system downtime.
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Crowd control, access, and VIP protection for events of any size.
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Fixed-post officers at entrances, lobbies, and gates for constant deterrence.
↗Call now for a live Ontario dispatcher, same-day deployment on urgent posts near the airport or Ontario Mills, or a free walk-through of your property.
49 industries · 5 categories · across Southern California
We have guarded Ontario warehouses, storefronts, and job sites for years and earned hundreds of 5-star reviews. Local officers, quick response, and straight reporting keep property owners across the Inland Empire with us.
A local crew, not a call center, guards based near Ontario who know the Mills, the airport freight zone, and your block.
Licensed by California BSIS, bonded, insured, background-checked, and trained for your specific post.
Same-day deployment, urgent posts and fire watch across Ontario can start the day you call.
Eyes on every shift, supervisors check guards through day, overnight, and weekend hours.
Clear, detailed reports, every Ontario shift is logged and sent to you, with photos on request.
Flexible terms, short-term, long-term, or one-off coverage with no lock-in.
We review your Ontario property, risks, and coverage needs at no cost.
You get a custom plan and a clear, no-obligation quote.
Licensed, local officers are deployed to your site.
24/7 dispatch and shift-by-shift reporting.
"We hired them for our Ontario location and never looked back. Dependable guards and honest reporting."
David Chen"Courteous, alert officers and simple scheduling. Our Ontario site is in good hands every shift."
Barbara Wells"Quick to deploy and easy to work with. Coverage for our Ontario property has been consistent and professional."
James Carter"Reliable, professional guards for our Ontario property, with clear reports every shift. Response is fast and local."
Brian Mitchell"Fast local response and well-trained officers, exactly what we needed for our Ontario site."
Richard Turner
Talk to our local team about coverage, scheduling, and pricing in Ontario, no obligation.
Tell us about your Ontario warehouse, shop, or event and we will build a custom security plan with a clear, no-obligation quote.
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