Armstrong World Industries, Inc.

Armstrong World Industries, Inc. is an Americas-based designer and manufacturer of innovative interior and exterior architectural applications, including ceilings, specialty walls, and exterior metal solutions. The company's mission is to make a positive difference in the spaces where people live, work, learn, heal, and play, by redefining how these environments can become smarter, healthier, and more inspiring. Headquartered in Lancaster, Pennsylvania, Armstrong World Industries has a history spanning over 165 years.

The company's product portfolio includes a wide range of ceiling, wall, and suspension systems, utilizing materials such as mineral fiber, fiberglass, metal, felt, architectural resin, glass, wood, wood fiber, and glass-reinforced gypsum. Armstrong World Industries operates through two primary segments: Mineral Fiber, which produces suspended mineral fiber and fiberglass ceiling systems, and Architectural Specialties, focusing on specialty ceilings, walls, and other interior and exterior architectural applications. These products are designed for use in commercial, institutional, and residential buildings, serving architects, designers, and contractors under various brand names including Armstrong, ACOUSTIBuilt, MetalWorks, and Tectum.

In recent leadership changes, Mark Hershey assumed the role of President and Chief Executive Officer on April 1, 2026, succeeding Vic Grizzle, who transitioned to Executive Chair. The company has actively expanded its portfolio through strategic acquisitions, including Eventscape, Inc. (a design and fabrication company) in February 2026, Geometrik Manufacturing Inc. (a wood ceiling and wall systems designer) in September 2025, FGM-Parallel LLC (aluminum products for building exteriors) in December 2025, and 3form LLC (an architectural resin designer) in 2024. Armstrong World Industries maintains a focused strategy to drive profitable growth by strengthening its core mineral fiber business and expanding its architectural specialties segment, emphasizing innovation, sustainability, and a customer-centric approach.