Allegion plc is a global manufacturer of security solutions, primarily focused on security around the door and adjacent areas. The company's business model revolves around producing and selling a range of mechanical and electronic security products, including door controls, exit devices, locks, key systems, and electronic access control systems. Allegion operates through two main geographic segments: Allegion Americas, which accounts for approximately 79% of its revenue, and Allegion International, which generates the remaining 21% across Europe, Asia, and Oceania. Revenue is roughly split evenly between new construction projects and aftermarket sales. The company's products are sold through various distribution channels, including specialty distributors, wholesalers, e-commerce platforms, and retail home improvement centers. Allegion's competitive position is supported by its portfolio of established brands, such as Schlage, CISA, Interflex, LCN, SimonsVoss, and Von Duprin. The company caters to a diverse customer base across commercial, institutional, and residential facilities, including the education, healthcare, government, and hospitality sectors. A notable characteristic of Allegion is its increasing focus on electronic security products and connected solutions, which serve as long-term growth drivers alongside its traditional mechanical hardware business.