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Top Security Firms in Los Angeles: 7 Companies That Stand Out
Los Angeles, with its sprawling metropolitan footprint and high-density urban zones, presents a complex security environment. From high-rise commercial properties in Downtown LA to gated communities in Beverly Hills and active construction sites across the Valley, the need for licensed, BSIS-compliant security service providers offering electronic security systems, alarm monitoring, and integrated fire/life safety solutions is critical.
Choosing the right security company in Los Angeles requires more than just comparing rates. Licensing, response time, service specialization, and client reputation are key differentiators that directly impact safety outcomes.
| Did you know: Demand for private security in LA has risen by 12% since 2020, fueled by concerns over property crime, civil unrest, and the expansion of high-value residential and commercial developments. |
This article outlines the top-performing firms in the local security industry, based on verified expertise, compliance standards, and operational presence across LA County.
What are the Criteria Used for Selecting the Best Security Companies in Los Angeles?
The companies featured in this list were evaluated using strict, objective criteria designed to reflect real-world performance and regulatory compliance. All firms hold current certifications issued by the California Bureau of Security and Investigative Services (BSIS), which regulates private patrol operators and ensures ongoing compliance with state-mandated security protocols.
Each company listed fulfills the following conditions:
- Licensed by the California Bureau of Security and Investigative Services (BSIS) with active Private Patrol Operator (PPO) status.
- Minimum of 3 years of operational history providing security services within Los Angeles city or county boundaries.
- Minimum 4.5-star rating on platforms such as Google, Yelp, or Trustpilot, based on at least 25 verified reviews.
- Demonstrated specialization in services such as armed/unarmed guard deployment, mobile patrol, event security, surveillance monitoring, or fire watch.
- Established response protocols, incident reporting systems, and GPS-tracked guard movement are supported by digital incident management platforms that document and escalate security breaches in real time.
- Compliance with safety and training standards, such as OSHA certification, First Aid/CPR training, and recurring employee background checks.
Companies were excluded if they lacked current BSIS licensure, failed to maintain a verifiable digital footprint, or showed inconsistencies in client servicing across major neighborhoods in LA.
Top 7 Security Companies in Los Angeles
The methodology explained above ensures that the firms presented are not only popular but also verifiably capable, regulated, and operationally prepared to handle diverse security needs in the Los Angeles area. Let’s explore the top 7 security companies in LA:
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1. CSI Security: The Most Responsive and Integrated Security Company in LA
Serving Greater Los Angeles for over 30 years with a combination of proprietary technology, armed patrol capabilities, and rapid deployment, CSI Security stands out for its custom-built systems and real-time response infrastructure.
Unlike many firms that rely on third-party monitoring or delayed setups, CSI delivers next-day installations, live audiovisual deterrents, and integrated smart-home protection in one app.
Headquarters: Brentwood, Los Angeles, CA.
Service Areas: Throughout Los Angeles County (residential and light commercial coverage).
Why is CSI Security Rated at Number 1?
The selection is based on the reliability of services. CSI security provides you with some unique features and services that no other security company in LA provides. There services are equipped with AI-enhanced intrusion detection and video analytics, routed to a UL 827-listed central monitoring station for live response by trained personnel.
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- Virtual Guard Perimeter System: A proprietary early-detection perimeter camera/alarm setup that combines AI-streaming cameras, motion lighting, and live guard monitoring to deter burglary and loitering in real time.
- 24/7 Armed Patrol Response: CSI operates its own armed patrol units that mobilize immediately upon alarm triggers. This is unusual for smaller California alarm firms.
- Rapid Custom Service: Offers same-day/next-day installations and “monitoring within hours,” enabling fast deployment of tailored security solutions .
- Complete Smart-Home Integration: Security systems seamlessly tied to lighting, locks, thermostats, cameras, garage doors, water and temp sensors, all controllable via one app.
How Do Customers Rate CSI Security?
CSI Security is well-reviewed across major platforms, reflecting strong client satisfaction in both residential and small business settings. On HomeAdvisor, the company holds a perfect 5.0-star rating. On Yelp, CSI maintains a solid 4.2-star average, with customers frequently praising the team’s punctuality, system reliability, and technical professionalism.
| Point to consider: According to LAPD’s latest figures, Los Angeles reported a property crime rate of 3,434.6 per 100,000 residents in 2022, including burglary, motor-vehicle theft, larceny, and vandalism. This is among the highest rates for any major U.S. city, underscoring the need for robust security solutions. |
2. American Global Security
American Global Security has over four decades of experience providing licensed armed and unarmed security guards across Los Angeles County. Their offerings include GPS‑tracked patrols through PatrolLIVE, live dispatch, and comprehensive incident reporting, earning praise for reliable on-site professionalism and guard consistency.
While AGS is known for traditional guard coverage and offers GPS-tracked patrol logs, its platform places less focus on modern, app-based automation or smart-integrated alarm systems. The company primarily operates through manual deployment models and offers limited visibility into real-time home or facility automation.
For clients whose security priorities center around trained physical presence and basic patrol routines, AGS offers a dependable option. However, those looking for high-speed system installation, smart-environment controls, or integrated remote deterrence tools may find fewer options within AGS’s current service scope.
3. Security Base Group
Based in downtown Los Angeles, Security Base Group offers over a decade of experience in private security, focusing on armed and unarmed guards, mobile patrol, executive protection, and fire-watch services. The company holds a valid California PPO license and is fully insured, serving both residential and commercial properties across LA.
Security Base is well-regarded for its personnel professionalism and custom security planning, particularly for events and high-visibility locations. Their services emphasize physical presence and patrol response, supported by surveillance assessments and trained dispatch teams.
The company does not advertise smart-home integration, same-day alarm system setup, or centralized mobile control. For clients seeking rapid deployment or fully automated, app-based home protection, these offerings may fall outside Security Base Group’s current model.
4. Armstrong Guard Services
Armstrong Guard Services, founded in 2015, provides round‑the‑clock armed and unarmed security guards, mobile patrols, fire-watch, event staffing, and residential protection across Los Angeles and surrounding counties . Clients consistently praise their professionalism, responsiveness, and reliability. Google and Chamber listings rate them a full 5.0 stars across dozens of reviews.
Their model emphasizes traditional security: well-trained personnel, onsite supervision, and GPS checkpoint tracking, bolstered by routine patrol logs . These offerings work ideally for clients who need visible, physical security coverage and structured team oversight.
That said, Armstrong Guard does not appear to offer integrated alarm systems, app-controlled automation, or rapid smart-home setups. Their setup process is more conventional, based on scheduled site evaluations and personnel deployment.
Clients seeking unified perimeter detection, alarm monitoring, or smart-environment integration may find Armstrong’s system less holistic in comparison to emerging security tech approaches.
5. United Guard Security (UGS)
United Guard Security has been providing licensed, bonded guard services in Los Angeles since around 2014, with a team drawing from combined law enforcement backgrounds and over 50 years of collective experience.
Their core offerings include 24/7 dispatch, armed and unarmed officers, mobile patrols, off-duty police, executive protection, and tailored crowd control for high-rise buildings, shopping centers, casinos, and residential communities.
UGS emphasizes quality personnel through rigorous vetting, quarterly training programs, and GPS‑verified real-time tracking via a client portal, ensuring accountability and transparency on every shift. Clients note professionalism and operational consistency across diverse industry segments, from hospitality to energy facilities.
UGS does not promote same-day alarm system installations, integrated smart-home controls, or advanced perimeter detection tools. For customers seeking fast alarm deployment and unified automation under one app, more modern, tech-driven solutions may offer better alignment with those needs.
6. Stoneye Security Services
Founded in 2017 and based in Sherman Oaks, Stoneye security Services offers a full suite of armed and unarmed guard solutions across Southern California, serving clients in retail, construction, medical facilities, and event security.
Their team is noted for reliability, Yelp listings show a 5.0-star average from businesses appreciating punctuality and professionalism. One client in the medical sector commented on their strong sense of safety and responsive service.
Stoneye emphasizes tailored security plans and trained personnel, providing mobile patrols, loss prevention, and risk management services supported by experienced officers. Their offerings reflect a solid foundation in physical security and on-site presence.
However, Clients interested in unified control, combining smart locks, indoor/outdoor sensors, and app-based automation may find these advanced tools outside of Stoneye’s current service package.
7. American Security Force
American Security Force, founded in 1999 and headquartered in Commerce, CA, holds California PPO License #16274 and operates throughout Los Angeles County. The company delivers robust services such as licensed security guards, 24/7 mobile patrols, remote surveillance trailers, executive protection, workplace and event security, investigations, and intelligence analysis.
Their advanced surveillance solutions like solar-powered, 360° mobile units with HD cameras, two-way audio, and real-time video alarm alerts demonstrate a strong commitment to remote monitoring and deterrence . Clients across warehouses, construction sites, and retail complexes appreciate the flexibility and transparency of their incident logging and patrol reports.
However, there’s little mention of unified home control or app-based alarm setup, and their solutions lack seamless ties to smart locks, lighting, or thermostat systems. For households seeking truly integrated, rapid automation with personalized deterrent tools, this approach may not fully meet modern smart-home security expectations.
Surveillance Services a Top Security Firm Should Offer
Selecting the right security company involves evaluating several critical factors that directly impact the effectiveness and reliability of your protection. You should consider the following three important things:
1. What Types of Security Services Should You Expect?
First, consider the range of security services offered, from armed patrols and alarm monitoring to advanced perimeter detection and smart-home integration. Companies providing seamless integration between physical guards and technology platforms can offer more comprehensive, real-time protection.
2. Why Is Speed and Customization So Important?
Next, assess the speed and customization of service installation. Rapid deployment, including same-day or next-day system installation and monitoring activation, ensures minimal exposure during transition periods. Tailored security solutions designed around your unique property and risk profile typically outperform generic “one-size-fits-all” packages.
3. What Technology Signals a High-Quality Security Provider?
Finally, look into customer feedback and technology capabilities. Trusted companies will have verifiable reviews reflecting punctuality, technical expertise, and responsiveness. Additionally, modern platforms that unify alarm systems, video surveillance, and home automation under a single app enhance user control and proactive deterrence, crucial for today’s connected lifestyles.
| Fact: More than 70% of LA homeowners who install new security systems in 2024 opt for mobile app integration, allowing real-time alerts and remote control of locks, cameras, and alarms. |
Frequently Asked Questions (FAQs)
Los Angeles-based patrol operations increasingly incorporate AI-driven surveillance cameras, smart alarms, and facial recognition technology to enhance threat detection and response.
These systems use real-time analytics to identify unusual behavior or unauthorized access, allowing security teams to intervene proactively. Integration with mobile apps enables users to monitor their properties remotely, receive instant alerts, and control devices like smart locks, lighting, and cameras.
Reputable security firms in LA deliver ongoing training in cultural competency, conflict de-escalation, and multilingual communication, ensuring that guards operate respectfully in multicultural communities.
This often includes awareness of community dynamics, implicit bias training, and scenario-based simulations that promote professionalism and inclusivity during interpersonal interactions in residential, retail, and event security contexts.
Top security firms offer customized executive protection services, integrating risk assessment, event-specific threat modeling, and private security detail coordination.
These services include discreet bodyguards, perimeter control, surveillance drones, secure transportation logistics, and temporary mobile command centers. Celebrity protection also requires enhanced privacy protocols, NDAs, and flexible deployment to meet the high-stakes demands of LA’s entertainment industry.
Security firms increasingly adopt sustainable security operations, such as using electric patrol vehicles, solar-powered surveillance towers, and digital incident reporting to reduce paper use.
Energy-efficient CCTV systems, LED perimeter lighting, and recyclable uniforms are also becoming standard in green-conscious service delivery. These practices contribute to both environmental sustainability and corporate social responsibility.
Yes, integrated physical and digital security solutions are a growing trend among full-service providers. These firms combine on-premise security systems, like access control and remote video surveillance, with cybersecurity offerings such as network monitoring, firewall management, and phishing prevention. This converged security model safeguards businesses from both physical intrusion and data breaches, offering holistic risk mitigation strategies.
Licensed providers establish emergency preparedness protocols that include disaster response planning, mobile command deployment, and coordination with local first responders.
Their security personnel receive training in crowd control, rapid evacuation, and real-time communication systems. During events like earthquakes, wildfires, or civil demonstrations, firms activate rapid-response security teams and utilize GPS-tracked patrols and mobile surveillance trailers to maintain safety and monitor evolving threats.
