Florida’s security needs are unusually diverse. Hotels and theme parks need crowd control, gated communities require trained gate officers, and warehouses depend on patrols, cameras and access-control systems. Hospitals, schools, offices and construction sites have their own security risks.
The companies below were selected for their Florida coverage, service range, workforce strength, technology, industry experience and ability to create site-specific security plans. This list focuses mainly on professional guarding and commercial security rather than residential alarm companies.
1. Allied Universal

- Corporate Headquarters: Irvine, California, and Conshohocken, Pennsylvania
Main Service Area: Statewide, including Miami, Fort Lauderdale, Orlando, Tampa, Jacksonville, Fort Myers, Sarasota, Pensacola and West Palm Beach
Best For: Large businesses, institutions and statewide security contracts
Allied Universal takes the top position because it has one of the largest security networks in Florida. The company provides armed and unarmed officers, mobile patrols, event security, access control, video surveillance, fire and life-safety systems, threat intelligence and security consulting.
Its scale makes it suitable for clients with several Florida properties. Offices, hospitals, shopping centres, warehouses, residential communities and major venues can combine physical guards with monitoring and security technology under one provider. Allied Universal also operates specialised event-security services in the Orlando area, making it a strong choice for conventions, entertainment venues and large public gatherings.
2. Securitas Security Services USA
- U.S. Headquarters: Parsippany, New Jersey
Main Service Area: Major Florida markets, including Miami, Fort Lauderdale, Tampa, Orlando and Jacksonville
Best For: Custom guarding, mobile patrols and technology-supported security
Securitas is a major international security company with a substantial Florida presence. Instead of using the same plan for every location, it builds security programmes around the property, operating hours, visitor traffic and level of risk.
Its services include on-site guarding, mobile patrols, remote monitoring, access control, video surveillance and fire-safety support. Securitas is particularly well suited to corporate offices, logistics facilities, industrial properties, retail centres, healthcare sites and residential developments. Businesses can use guards alone or combine them with electronic security systems for wider coverage.
3. GardaWorld Security
- Global Headquarters: Montreal, Canada
Main Service Area: Deerfield Beach, Jacksonville, Orlando, Tampa and surrounding Florida regions
Best For: Commercial guarding, mobile patrols, concierge security and cash services
GardaWorld has established Florida branches serving the state’s major commercial regions. The company provides uniformed security officers, armed guarding, mobile patrols, concierge officers, surveillance support, crowd management and specialised protection services.
Its concierge-style security is useful for condominiums, office towers and residential developments that need both security and professional visitor assistance. GardaWorld also has a separate cash-services division offering armoured transportation, ATM support and secure cash processing. This gives banks, retailers and other cash-intensive businesses access to services beyond standard guarding.
4. Marksman Security
- Headquarters: Fort Lauderdale, Florida
Main Service Area: South Florida, Orlando, Tampa Bay and selected markets across the state
Best For: Residential communities, commercial properties and hospitality-focused security
Marksman Security is one of the strongest Florida-founded names on this list. Its corporate office is in Fort Lauderdale, with additional Florida operations in Tampa and Orlando. The company is known for developing customised programmes instead of simply assigning guards to a property.
Marksman serves gated communities, condominiums, corporate campuses, healthcare facilities, financial institutions and commercial real estate. Its approach places considerable attention on customer service because security officers are often the first people residents, guests or employees meet. This combination of protection and hospitality makes Marksman particularly suitable for luxury residential and commercial properties.
5. Cambridge Security Services
- Headquarters and Command Centre: Boca Raton, Florida
Main Service Area: South Florida, from Miami through Broward and Palm Beach counties to the Treasure Coast
Best For: Luxury communities, private schools, houses of worship and executive protection
Cambridge Security Services is a Florida-focused provider specialising in clients who need a more personal and discreet level of protection. Its main strength is high-end residential security, particularly for gated communities and luxury properties in South Florida.
The company offers armed and unarmed officers, permanent or temporary coverage, executive protection, rapid response and emergency medical support. It also protects private schools and religious institutions, where officers need strong communication skills and careful training. A 24-hour command centre supports field operations and provides clients with a central point of contact during emergencies.
Factors Considered for This Ranking
- Number and location of Florida offices
- Armed and unarmed guard availability
- Mobile patrol and emergency-response capabilities
- Access-control, surveillance and monitoring technology
- Experience with residential and commercial properties
- Event, executive and specialised protection services
- Ability to manage multi-location security contracts
- Strength of local management and customised planning
Conclusion
Allied Universal is the strongest overall choice for large or statewide security requirements. Securitas is well suited to businesses wanting guards supported by modern security technology, while GardaWorld stands out for patrol, concierge and cash-handling services.
Marksman Security offers strong Florida roots and is a good match for residential communities and commercial properties. Cambridge Security Services is particularly suitable for luxury communities, private institutions and clients requiring discreet protection in South Florida.
Before signing a contract, clients should verify the company’s Florida licence, review officer-training standards and request a written security plan. Pricing should also clearly explain supervision, equipment, overtime, emergency coverage and replacement-officer arrangements.