The best 10 Security Guard Companies near Los Angeles, California - with verified email and phone number owner contact info

Guardian Security Group provides 24/7 on‑site security, executive protection, event staffing, loss‑prevention strategies, and technology‑focused safeguards. Their uniformed guards are trained to adapt to varied client needs, with custom plans highlighted by positive client testimonials. Notable clients include Airbnb, Marriott, Salesforce, Samsung, Live Nation, and other leading brands worldwide.

American Guard Services employs a centralized management system from its Los Angeles headquarters, ensuring consistent compliance and oversight. A dedicated Quality Control team conducts quarterly evaluations and client visits. Guards undergo rigorous screening, including FBI fingerprinting, background checks, drug testing, and verification of experience and character, and physical fitness standards.

Safety Zone Security offers unarmed, armed, and vehicle‑patrol guard services in San Jose, supported by over 3,000 on‑call personnel and a 24/7 command center. Their guards use geolocation, incident‑reporting, and NFC/RFID technology. Services are month‑to‑month, statewide, with instant quotes and deployment within 2–72 hours, covering multiple industries for commercial and residential.

Peralta Defense offers armed and unarmed security, vehicle patrol, event protection, and fire‑watch services for commercial, residential, government, healthcare, transportation sectors. Its investigative portfolio includes background checks, TSCM, fugitive recovery, and GPS tracking. Training covers guard‑card, firearms, CPR, and II guard courses. Recognized by NFPA as a top fire‑watch provider.