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The 10 Best Security Companies in Fresno (2026)
Finding trustworthy security services in Fresno means balancing strong customer feedback with a solid sample size of reviews. This list ranks local security companies using a Bayesian weighting of Google ratings — a method that combines score and review count to reduce the effect of small samples. Updated for 2026, the guide reflects businesses across Fresno and nearby neighborhoods, from system suppliers to guard services. Use it as a starting point for comparison; you should still verify licenses, insurance, and service details directly with any company before hiring.
This ranking is computed from Google reviews (our method). Listings marked Partner are paid advertising spots: they sit alongside the ranking without changing its order.
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Alert 360 Home & Business Security Fresno
Alert 360 Home & Business Security Fresno tops our list because it combines a high Google rating (4.8) with substantial review volume (512), giving its Bayesian score strong statistical weight. Listed as a security system supplier and located on N Sonora Ave in north Fresno, it ranks ahead because many reviews reduce uncertainty compared with smaller profiles. That balance of quality and quantity is why it emerges as our pick.
The full ranking
Fresno Security and Patrol Service
Shows a perfect 5.0 rating based on 18 reviews and appears as a security guard service; no street address is listed on Google.
18 reviews
Pennington Security
Pennington Security has a 5.0 Google rating from 17 reviews and is classified as a security guard service, with an office at 4270 N Blackstone Ave Ste 312 in Fresno.
17 reviews
Ethos Protection Services Inc.
With a 4.8 rating from 20 reviews, Ethos Protection Services Inc. is listed as a security service and is located at 1040 E Herndon Ave Ste 104 in Fresno.
20 reviews
St. George Private Security, Inc
This security guard service carries a 4.6 rating based on 28 Google reviews and lists an address at 777 Minnewawa Ave Ste#8 in Clovis.
28 reviews
AmeriGuard Security Services Inc
Rated 4.1 from 54 reviews, AmeriGuard Security Services Inc is categorized as a security guard service and is located at 5470 W Spruce Ave #102 in Fresno.
54 reviews
Fresno County Private Security
Fresno County Private Security posts a 4.0 rating with 42 reviews on Google and is identified as a security guard service; no address is provided.
42 reviews
Vigilant Private Security
Vigilant Private Security holds a 3.8 rating from 57 reviews, listed as a security guard service with an office at 3170 N Chestnut Ave Suite 100 in Fresno.
57 reviews
Allied Universal® Security Services
Allied Universal® Security Services is shown with a 3.8 Google rating and 23 reviews, classified as a security guard service at 4672 W Jennifer Ave Ste 101 in Fresno.
23 reviews
Falcon Security Services, Inc.
Falcon Security Services, Inc. has a 3.7 rating based on 29 reviews and is listed as a security guard service at 323 W Cromwell Ave #110 in Fresno.
29 reviews
Frequently asked questions
How should I choose between a security system supplier and a security guard service?
Decide based on the risks you want to address: system suppliers provide alarm and monitoring technology for property protection, while guard services offer on-site personnel for deterrence and response. Consider your budget, the level of physical presence you need, and whether you require ongoing patrols or electronic monitoring.
What should I check before hiring a local security company?
Verify state licensing and insurance, ask for references or recent client examples, and confirm the scope of services in writing. Also check response times, background checks for personnel, and contract terms for cancellation and maintenance.
How much does hiring a security company typically cost?
Costs vary widely depending on service type, coverage hours, and technology; on-site guard services usually bill differently than monitoring or equipment plans. Get multiple written quotes and compare what is included — patrol frequency, monitoring fees, equipment, installation, and any recurring charges.
How was this ranking of security companies created?
The list is built from Google review data using a Bayesian-style weighting that combines each business’s average rating with its review count to reduce the impact of small sample sizes. It was updated in 2026 and reflects publicly available Google ratings and review totals.