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Explore Security Systems & Services in California

Review the services of 161 security providers across California, including Los Angeles, San Diego and San Francisco. Whether you need alarm systems, video surveillance or on-site security, look for relevant businesses and inquire about availability and pricing.
Anaheim (4)
Bakersfield (2)
Bell (1)
Berkeley (1)
Beverly Hills (1)
Burlingame (1)
Campbell (2)
Cerritos (2)
Claremont (1)
Clovis (1)
Concord (4)
Costa Mesa (1)
Dana Point (1)
Dublin (1)
El Cajon (1)
Elk Grove (1)
Escondido (1)
Fontana (2)
Fresno (4)
Garden Grove (2)
Gardena (1)
Glendale (1)
Hayward (1)
Imperial (1)
Indio (1)
Inglewood (1)
Irvine (2)
La Puente (1)
La Quinta (1)
Laguna Hills (1)
Long Beach (4)
Los Angeles (13)
Merced (1)
Modesto (1)
Montclair (1)
Monterey (1)
Morgan Hill (1)
Oakland (1)
Oakley (1)
Oceanside (1)
Ontario (2)
Orange (2)
Oxnard (1)
Palm Desert (2)
Paradise (1)
Pasadena (2)
Paso Robles (1)
Placentia (1)
Pleasanton (2)
Rancho Cordova (1)
Rancho Cucamonga (3)
Redwood City (1)
Riverside (4)
Sacramento (3)
Salinas (1)
San Bernardino (4)
San Carlos (1)
San Clemente (1)
San Diego (12)
San Dimas (1)
San Francisco (7)
San Gabriel (1)
San Jose (7)
San Leandro (1)
Santa Ana (1)
Santa Rosa (1)
Santee (1)
Signal Hill (1)
Simi Valley (1)
Solana Beach (2)
Stockton (3)
Summerland (1)
Sunnyvale (1)
Temecula (2)
Temple City (1)
Thousand Oaks (1)
Torrance (2)
Tracy (1)
Turlock (1)
Tustin (1)
Twain Harte (1)
Vallejo (1)
Ventura (1)
Victorville (1)
Visalia (2)
Woodland Hills (2)
Not rated yet
Armstrong Guard Services
11 Years
Emergency
Not rated yet
We provide 24/7 licensed security professionals with 40+ hours of mandatory training
Armstrong Guard Services offers 24/7 licensed security guards, fire watch, and mobile patrol in Los Angeles, CA. Trusted for reliability and professional service since 2015.
Armed Security Unarmed Security Firewatch Security
(818) 818-4047 Call Profile
Not rated yet
I Guard Security
Emergency
Not rated yet
We provide customized security solutions tailored to specific client needs
I Guard Security offers reliable, cost-effective security solutions in San Diego, including armed guards, event security, and mobile patrols, ensuring client safety with smart, customized services.
Security Assessment Mobile Patrol Event Security
(619) 343-3189 Call Profile
RSI Security
13 Years
Emergency
Not rated yet
RSI Security
13 Years
Emergency
Not rated yet
We offer 10+ years of experience as top-tier cybersecurity service providers.
RSI Security delivers expert cybersecurity, compliance, and risk management solutions for organizations nationwide, ensuring data protection and regulatory adherence through tailored services.
Compliance Advisory Penetration Testing Cloud Security
(858) 999-3030 Call Profile
Not rated yet
Eagle Eye Protection
26 Years
Emergency
Not rated yet
We provide 24/7 proactive security solutions tailored to client needs
Trusted security solutions in Los Angeles since 2000. Eagle Eye Protection offers 24/7 customized guarding services for residential, commercial, and industrial clients. Proactive protection with trained professionals.
Residential Security Commercial Security Event Security
(213) 221-9005 Call Profile
Not rated yet
Los Angeles Professional Security
Emergency
Not rated yet
We offer 24/7 rapid-response security services with no monthly limits or false alarm fees.
Trusted 24/7 security services in Los Angeles with rapid response, K-9 units, and real-time monitoring. Protect homes, businesses, and individuals with customized security solutions.
Patrol Services Alarm Response Video Monitoring
(855) 565-0025 Call Profile
Not rated yet
Full Access Control
Emergency
Not rated yet
We provide 24/7 emergency locksmith services with fast response times.
Full Access Control offers expert locksmith services, security systems, and 24/7 emergency solutions in Los Angeles. Trusted for over 20 years with 6,000+ satisfied customers.
Biometric Access Control CCTV Surveillance Residential Locksmith
(424) 209-8270 Call Profile
Not rated yet
Kysmet Security & Patrol
11 Years
Emergency
Not rated yet
We offer 24/7 emergency security response services
Trusted security solutions in Salinas, Monterey, Gilroy, and Santa Cruz. Expert guards, 24/7 patrols, event security, and more. Protect your property with Kysmet Security & Patrol.
Security Guards Vehicle Patrol Event Security
(831) 998-7963 Call Profile
Not rated yet
Nation Wide Security Services
Emergency
Not rated yet
We offer over 27 years of experience in comprehensive security solutions.
Nation Wide Security Services offers customized security solutions including guards, surveillance, and alarm monitoring across California. Trusted for over 27 years with 1000+ successful projects and 24/7 emergency services.
Security Guards Surveillance Systems Event Security
(909) 450-2656 Call Profile
Not rated yet
Smart Shield Systems
Emergency
Open 24/7
Not rated yet
Locally owned with deep San Diego community ties and rapid response capabilities
Trusted San Diego security provider offering alarm systems, surveillance, and smart home automation. 24/7 monitoring, local expertise, and customized solutions for homes and businesses.
Alarm Systems Video Surveillance Access Control
(844) 477-7627 Call Profile
American Safe
50 Years
Emergency
Not rated yet
American Safe
50 Years
Emergency
Not rated yet
Veteran-owned with 45+ years of commercial security expertise
Trusted commercial security solutions since 1976. Access control, alarm systems, locksmith services, and 24/7 emergency response across Northern California. Veteran-owned security experts.
Access Control System Alarm System Services Locksmith Services
(888) 524-1501 Call Profile