Allegion Public Limited Company

Allegion plc is a global provider of mechanical and electronic security products and access control solutions that keep people and assets safe in the places they live, learn, work, and connect, generating $4.07 billion in revenue in fiscal 2025. Spun out of Ingersoll Rand in 2013, the company owns a portfolio of century-old brands — Schlage, Von Duprin, LCN, CISA — that occupy a peculiar position in the industrial landscape: nearly every commercial building needs its products, most door openings are specified by brand, and yet the business receives almost no attention from generalist investors because it sells locksets and door closers rather than software or semiconductors.

This is a story about a company executing well in a market that rewards incumbency but demands continuous adaptation. Allegion's core mechanical hardware business generates prodigious cash flow — Americas segment operating margins ran at 27.9% in FY2025 — while an accelerating electronic product cycle is gradually reshaping the revenue mix toward higher-growth, software-adjacent offerings. The company has deployed over $630 million on acquisitions in 2025 alone, including the purchase of German RFID-reader maker ELATEC, signaling an ambition to be more than a reliable hardware supplier.

The file turns on a single question: whether the electronics transition can pull Allegion's growth rate and multiple high enough to overcome the gravitational drag of a mature mechanical business, without the margin structure that makes the company attractive today breaking apart in the process.