Steel Dynamics vs Allegion
Side-by-side comparison of AI visibility scores, market position, and capabilities
Steel Dynamics (STLD) reported ~$17.5B revenue in FY2024. One of the largest U.S. steel producers using mini-mill electric arc furnace technology, focused on flat-rolled and long products. HQ: Fort Wayne, IN.
About
Steel Dynamics, Inc. is one of the largest steel producers and metals recyclers in the United States, manufacturing steel using electric arc furnace (EAF) mini-mill technology that melts recycled scrap metal rather than virgin iron ore. Founded in 1993 by Keith Busse and a team of former Nucor executives, Steel Dynamics has grown from a single mini-mill in Butler, Indiana to a national steelmaker with 12 steel mills, 9 steel fabrication operations, and extensive metals recycling operations. The company produces flat-rolled steel (sheet, coil), long products (structural steel, bars, rails), and value-added steel fabrications.
Dublin physical security and access control (NYSE: ALLE) at $3.8B 2024 revenue; Q2 2025 record $1B+ quarterly with Salto Systems and Gatewise acquisitions expanding electronic access competing with ASSA ABLOY for global door security.
About
Allegion plc is a Dublin, Ireland-headquartered global security products company — publicly traded on the New York Stock Exchange (NYSE: ALLE) as an S&P 500 component — generating $3.8 billion in revenue in 2024 and setting a quarterly revenue record exceeding $1 billion in Q2 2025 for the first time in company history, with approximately 14,400 employees across operations in 130+ countries. Allegion's portfolio spans 25+ brands including Schlage (US residential and commercial locks), Von Duprin (exit devices since 1908), LCN (door closers since 1876), CISA (European locks), SimonsVoss (wireless electronic locking), and Interflex (workforce management). The company generates 75%+ of sales in the United States. CEO John H. Stone. Allegion was spun off from Ingersoll Rand on December 1, 2013, joining the NYSE and S&P 500 on the same day. Recent acquisitions include Salto Systems (2024, cloud-connected access control), Gatewise (2025, multifamily access control), and ELATEC (2025 pending, RFID/NFC reader technology).
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