Best Security Guards Companies in El Cerrito, California

Core1 Security Services is a services company focused on security information and event management. With $5 M revenue and 51‑200 employees, it stresses professionalism and customer service. Technologies include WordPress, PHP, reCAPTCHA and Google Cloud DNS. Competitors are Protech Security and West Coast Security. Activity is low, suggesting limited market movement.

Grand Protective Security offers armed and unarmed guards, mobile patrols, CCTV monitoring, and risk‑management consulting across the Bay Area. Their team holds California licenses, undergoes extensive training, and uses advanced surveillance technology. Services span residential, commercial, industrial, healthcare, hospitality, construction, and event security, with 24/7 professional monitoring and free assessments.

Worldwide Security provides a range of security services across California, including armed and unarmed guard staffing, CCTV monitoring, roving patrols, fire watch, and traffic control. With over 15 years of experience, the firm emphasizes risk assessment, modern equipment, and 24/7 response for residential, commercial, and personal protection needs, serving clients nationwide today.

Ground Branch Security Group offers private security services in the San Francisco Bay Area, including armed guards, event protection, corporate and residential security, risk assessments, and crisis management. With over ten years’ industry experience, the firm emphasizes customized plans, 24‑hour response, and aims to expand nationally for businesses and individuals protection.

Overall and Associates Security Inc. provides private security solutions, including uniformed or plain‑clothed on‑site guards, mobile patrols, executive protection, event crowd control, and access‑control visitor management. The firm emphasizes licensed, vetted officers, customized plans, 24/7 support, rapid response, and a HALO body‑camera system for incident documentation. Technology enhances safety operations.

Forbes Security delivers professional security solutions with a focus on continuous officer training and detailed property assessments. Their management team emphasizes proactive strategies, fostering partnerships that prioritize client safety. The firm highlights a comprehensive approach, combining skilled personnel and tailored services to protect people, tenants, assets, and property value overall.

American Guard Protection offers a range of security guard services in Emeryville and the Bay Area, including armed and unarmed guards, event crowd control, retail loss‑prevention, construction site protection, personal detail, marine monitoring, and mobile patrols. Their staff are licensed, background‑checked, and receive training, with 24/7 response and site assessments.

GardaWorld Security lists over 50,000 U.S. staff across 76 offices in 48 states, marking three decades of operation. The site details services such as guard staffing, K9 units, and crowd management, and showcases client feedback from Spotify. It also offers industry insights, career listings, and links to related business units.

Precision One Protective is a Subchapter S corporation offering security guard and patrol services (NAICS 561612) in Contra Costa County. Operating over two years with roughly six staff, it targets a high‑income market—median household income $147,708, 59% above $100k. The firm faces 34 local competitors within a 21‑mile radius regional.

Diplomatic Security Specialists In Training offers BSIS‑certified mandatory and elective courses covering firearm laws, safety, the seven fundamentals of marksmanship, weapon maintenance, systematic patrol routines, liability issues, and courtroom demeanor. Instruction emphasizes real‑world application, strong‑hand and support‑hand drawing, and shooting from cover versus concealment for professional security personnel development today.

1st Defense offers uniformed security, event protection, and video surveillance for commercial and private clients. The site highlights a two‑year streak winning Oakland’s Best Private Patrol Service award and inclusion in the 2023 Business Hall of Fame. Contact details and social media links are provided on the site for inquiries.