Best Security Guards Companies in Lucas Valley-Marinwood, California

AmPm Patrol delivers private security across San Francisco, San Mateo, Sacramento, San Joaquin, and Santa Clara counties, emphasizing crime deterrence, rapid incident response, and customized access‑control plans. Their guards undergo rigorous training, employ modern surveillance tools, and maintain transparent client communication, earning strong reviews for professionalism and proactive risk management.

Praetorian USA’s website presents a clear navigation structure covering services, industry solutions, career opportunities, and a news blog. It highlights a licensed security provider (PPO #16665) and offers a quote request and training portal. A notice states the firm is not currently accepting new clients at present but remains hopeful.

Safari Security Services provides 24/7 armed and unarmed protection across California, drawing on 40+ years of experience and a 300‑person team. Offerings include mobile patrols, construction site guards, event security, CCTV monitoring, concierge, night watch, training, and personal protection. Coverage spans California counties, with industry‑certified staff and modern surveillance technology.

Barbier Security Group offers private security services including patrol, onsite agents, event security, executive protection, investigations, and a Global Security Operations Center. Their team consists of former law‑enforcement and military personnel selected through a rigorous process and receives ongoing training. They also provide advanced training programs and comprehensive threat assessments.

OSOS Security Services provides BSIS‑approved California guard‑card training, including an 8‑hour hybrid course (3 hours online Power‑to‑Arrest, 5 hours in‑person Use‑of‑Force). Additional 32‑hour and 40‑hour bundles cost $99 and $198. Courses are interactive, mobile‑friendly, offer instant certificates, and meet annual 8‑hour refresher requirements. Instructors possess decades of security and legal extensive expertise.

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.

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.

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.

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.