Newmark Security plc provides security and data management solutions through its two main divisions: People & Data Management and Physical Security Solutions. The People & Data Management division focuses on human capital management (HCM) software and services, including access control systems, while the Physical Security Solutions division offers integrated physical security products and services, including auto-door systems. The company serves a diverse customer base across various sectors in North America, the UK, Europe, and other global markets, generating revenue primarily through product sales and recurring service contracts.