Best Security Guards Companies in San Leandro, California

CME Security delivers licensed guard services across the San Francisco Bay Area, including unarmed, armed, mobile patrol, event, foot‑patrol, fire‑watch, and integrated security systems. Their multicultural, Hispanic‑owned team serves commercial sites, schools, festivals and more, earning praise for professionalism, rapid response and strong community relationships to protect assets and ensure safety.

Straight Edge Solutions Agency offers security services including uniformed guards, mobile patrols, event security, access control, executive protection, and specialized solutions. The firm emphasizes experienced personnel, customized plans and modern technology. A client‑focused approach and career opportunities are highlighted throughout the site for businesses seeking reliable protection and risk management.

All About Security Agency, founded in 1996, delivers comprehensive security services across Northern California. Offerings include static guards, vehicle patrols, executive protection, special‑event staffing, permit enforcement, and HOA community patrols. The firm employs real‑time dispatch technology and a computer‑aided reporting system, ensuring detailed vetted incident documentation for clients today promptly.

Guard Enforcement provides integrated security, co‑working, and tech solutions across the USA and Nigeria. With over a decade of experience, the firm serves 300+ clients using AI‑driven surveillance, IoT access control, and 24/7 monitoring. Led by veteran CEO Segun Ayanbajo, it offers licensed, insured protection and modern workspaces for businesses.

Bravo Security Services is a verified Guardist vendor offering 24/7 security solutions. Services include armed and unarmed guards, healthcare facility protection, personal and executive protection, firewatch, corporate, loss prevention, and retail security. Holds a private patrol operator license (#120157) and provides instant quote requests through the marketplace for clients nationwide.

OnPatrol, Inc. delivers security services built on people, training, processes, technology, and feedback. Offerings include vehicle patrol, executive protection, event security, off‑duty police, armed and unarmed officers, and concierge staffing. Their accountability system uses electronic guard tours and GPS tracking. A four‑step workflow—assess, build, protect, support—serves over 9,000 clients globally.

American Global Security is a leading security guard company in San Francisco Bay Area, CA. Our security guard services keep your building and homes safe.

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.

ABC Security Service delivers armed and unarmed guard solutions for airports, construction sites, government facilities, schools, hospitals, maritime ports, residential complexes, and retail venues. With over 50 years in the industry, the firm emphasizes training, a Ten‑To‑Win quality program, and compliance with Homeland Security standards. Openings include armed guard positions.

Reliable Security Guard Services REQUEST A QUOTE 20 Years of Experience At All Nation Security Services, we deliver more than just security solutions—we provide peace of mind. As a professional se…

Alpha Patrol Security provides licensed armed, unarmed, and specialized guards—including termination, event, and patrol services—plus video surveillance operators and advanced camera systems. The firm partners with off‑duty police, offers rapid‑response mobile patrols, and emphasizes community employment and professional training across residential, commercial, and industrial properties for client peace and safety.

Armorous Security provides guard and patrol services Northern California, covering Napa, Sonoma, Bay Area, Alameda, Marin, Sacramento, Mendocino and Lake counties. Offerings include armed/unarmed guards, vehicle patrols, emergency response and deterrent systems for commercial, construction, cannabis, HOA, winery and hospitality sites. Recognized in awards; feedback notes guard selection and communication.