MIWD Holding Company LLC (MITER Brands)

MITER Brands is a prominent residential window and door manufacturer, operating with a mission to establish itself as the most valued brand in the American window and door industry. The company emphasizes a "people-first" culture and a commitment to quality and precision manufacturing. Its corporate headquarters are situated in Harrisburg, Pennsylvania.

The company offers a diverse portfolio of window and door brands designed for both new construction and replacement markets across the United States. Key brands include MI Windows and Doors, serving the Central and Eastern U.S., Milgard Windows and Doors for the Western U.S., and PGT Windows and Doors, which specializes in impact-resistant products for the Southeast U.S. Additionally, MITER Brands provides advanced glass solutions through its Triton™ Advanced Glass Systems, featuring lightweight impact and triple-pane options, and the Sunrise Collection for premium vinyl replacement windows.

Under the leadership of CEO Matt DeSoto, MITER Brands significantly expanded its operations in March 2024 with the acquisition of PGT Innovations, a manufacturer of highly engineered windows and doors, for approximately $3.1 billion. This acquisition integrated PGT Innovations' impact-resistant technology and advanced manufacturing capabilities into MITER Brands' offerings. The company continues to innovate, having unveiled its Triton™ Advanced Glass Systems in July 2026 and launched the Sunrise Collection in March 2026. MITER Brands operates as a privately held company, with Koch Equity Development LLC serving as a key investor.