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

Core1 Security Services, a California‑based business services firm, reports $5 million revenue and 51‑200 employees. The company emphasizes professionalism and customer service, with a focus on security information and event management. It competes with Adm Security, West Coast Security Patrol, Protech Security Group, and Huffman Security. Core1’s tech stack includes WordPress, reCAPTCHA, PHP, and Google Cloud DNS.

Grand Protective Security offers a range of security services, including armed and unarmed guards, mobile patrols, CCTV monitoring, and risk‑management consultations. Their team is licensed, trained, and equipped with modern technology, providing 24/7 coverage across residential, commercial, and industrial sectors. Clients can request a free quote and benefit from customized protection plans today.

Ground Branch Security Group offers private security services in the San Francisco Bay Area, including event, bodyguard, commercial, and residential protection. Their team features licensed armed guards, risk‑assessment consultations, and crisis‑management support. With over a decade of experience, they emphasize personalized, 24/7 service and a commitment to client safety and peace of mind.

Forbes Security offers professional security services, emphasizing continuous officer training and a proactive, partnership‑based approach. The company focuses on protecting clients, tenants, and property through detailed property assessments and a skilled management team, ensuring reliable and responsive security solutions for residential and commercial clients seeking peace of mind and safety.

Overall and Associates Security offers private security solutions, including on‑site guards, mobile patrols, executive protection, event security, and access control. The firm emphasizes licensed officers, customized plans, 24/7 support, and rapid response. It also employs HALO body‑camera technology for crime deterrence and incident documentation, enhancing client safety and accountability.

Tall Tower Security offers retail, commercial, and residential guard services with a focus on affordability and rapid deployment. Their officers are trained, respectful, and experienced in protecting property, ensuring client comfort, and deterring crime. The company emphasizes a business‑centric approach, positioning itself as a partner for property owners seeking reliable security solutions today.

American Guard Protection offers licensed security services across the San Francisco Bay Area, including armed and unarmed guards, event and construction site protection, retail and personal security, and marine patrols. Their team is trained, background‑checked, and available 24/7, with customizable plans and a focus on rapid response and client satisfaction.

GardaWorld Security offers comprehensive security solutions, including K9 units, crowd management, and integrated guarding. With over 30 years in the industry, the firm serves sectors such as retail, construction, data centers, and government. It employs 50,000 staff across 76 U.S. locations, earning client praise for reliability and professionalism and industry recognition.

Precision One Protective offers security guard and patrol services in Hercules, CA, operating as a Subchapter S corporation with six employees. The firm serves Contra Costa County, where median household income is $147,708, 53% above the state average. It competes with 34 local security providers within a 21‑mile radius, offering reliable protection services.

Diplomatic Security Specialists In Training offers comprehensive security officer courses, including mandatory and elective options, covering firearm safety, legal responsibilities, and patrol procedures. The program emphasizes real‑life scenarios, systematic routines, and courtroom conduct. Students receive hands‑on instruction, certification, and support for career advancement in the security field today.