Private security firms are companies that provide security services to individuals, businesses, and organizations. They offer a range of services, including armed security, unarmed security, surveillance, and event security. These firms are often hired to protect property, assets, and people, especially in situations where public law enforcement may not be available or sufficient. These firms operate independently from government agencies and can be found in various sectors, including retail, corporate, and residential security. They may employ trained security personnel, use technology like CCTV cameras, and develop security plans tailored to their clients' needs.