Security Guards Companies in Union City, California

ADS Guards offers licensed, insured security services across California, Texas, Oregon, and Washington, featuring armed and unarmed guards, mobile patrols, construction site protection, and event security. Their 28‑year‑old company provides real‑time guard tracking via GuardOne, a 24/7 dispatch center, and flexible pricing without long‑term contracts, earning positive client reviews for reliability and professionalism.

C & C Security Patrol offers on‑site guard and patrol services across the Bay Area, backed by 30+ years of experience. Their guards undergo rigorous screening and training, and the company emphasizes safety, ethics, and customer partnership. Client testimonials highlight responsive staff and reliable protection for events and properties, with a focus on modern security needs.

Barrera Intervention offers a range of security services, including firewatch, mobile patrol, event and on‑site protection, church and residential patrol, retail loss prevention, construction security, and OC‑certified guard training. The firm emphasizes professional, courteous guards and flexible contract options for both short‑ and long‑term needs, serving diverse client industries and private clients.

Garcia's Security Training offers a range of courses for security professionals, including Initial Firearms, Power to Arrest, Firearms Requalification, Continuous Education, ECD, OC Spray, and First Aid/CPR/AED. The site also provides mobile live‑scan fingerprinting, child fingerprinting, and notary public training, with online and live registration options and an events calendar.

K‑9 Private Security offers Bay Area businesses comprehensive security solutions, including commercial, cannabis, shopping‑center, residential, educational, remote, executive, corporate‑campus, and technology services. With 15+ years experience, the firm provides licensed, trained guards, real‑time monitoring, and customized plans, earning a 5‑star client rating for rapid, reliable response and peace of mind.

South County Security offers home security solutions, including camera installation, alarm systems, smart locks, video doorbells, and 24/7 monitoring. Their process involves a direct call to a local specialist, same‑day appointments, upfront quotes, and professional installation. The site emphasizes licensed, insured technicians and a satisfaction guarantee for homeowners seeking reliable protection.

Top Flight Security offers 24‑hour private security and patrol services across the San Francisco Bay Area. The firm holds a BBB A+ rating and provides event, patrol, industrial, VIP, and emergency security solutions. With over 30 years of experience, it serves both commercial and residential clients, emphasizing reliability and professionalism.

Legion 13th Security offers unarmed, armed, fire‑watch, mobile patrol, roving patrol, and parking‑enforcement services across the Bay Area. With 15 years of experience, they provide GPS‑verified guard deployment, real‑time reporting, and flexible agreements. The firm has completed over 10,000 patrols, issued 1,000+ citations, and maintains an 89.1% guard retention rate.

PrimeGuards delivers nationwide security solutions, offering licensed armed and unarmed guards, commercial, construction, healthcare, and event protection. Their services include fire‑watch, mobile patrols, and executive bodyguards, backed by 27 years of experience, 30,000+ staff, and 24/7 command‑center oversight. Clients note rapid response, reliable coverage, and customized plans for businesses today.

Security Guard Team (SGT) offers hourly security, courtesy patrol with parking enforcement, and executive protection across the Bay Area. Their services include real‑time GPS tracking, digital incident reports, body‑camera footage, and a 24‑hour dispatch center. Clients receive a dedicated account manager and can request a free quote online today.

American Global Security offers a broad range of guard services—including armed, unarmed, standing, vehicle patrol, and fire‑watch—across California. With over 30 years of experience, the firm provides 24/7 monitoring, real‑time guard tracking, and a free consultation. Client reviews highlight professional, responsive staff and reliable, flexible security solutions for businesses and communities.

ONPATROL, Inc. delivers comprehensive security solutions, including armed and unarmed officers, vehicle patrols, executive protection, event security, and concierge services. Their five‑tier accountability system features electronic guard tours and GPS tracking for real‑time monitoring. The company emphasizes People, Training, Processes, Technology, and Feedback, and serves over 9,000 clients worldwide, ensuring reliable protection.