Allegion plc is a Dublin-based company that designs, manufactures, and distributes mechanical and electronic security products worldwide, catering to a range of customers in commercial, institutional, and residential settings. Products include door closers, locks, access control systems, workforce productivity systems, and other related accessories sold under esteemed brands such as CISA, LCN, Schlage, and Von Duprin. The company works through several distribution channels, including wholesalers, specialty distribution, and online platforms.