The difference between subway company and security company

Service field. The service fields of subway companies and security companies are different. The subway company is a company that provides urban transportation services, and the security company is a company that focuses on providing security services. Is a company that mainly provides urban subway public transportation services, and its main task is to provide efficient, safe and convenient urban transportation services for the public. Security companies are mainly responsible for property management, event site security, supermarket security, bodyguards, escorts and other security services.