Founded in 1944, Modern Builders Supply, Inc. is a Midwest building-materials distributor that also manufactures and markets Polaris window and door systems. The company reports 26 branches across Ohio, Indiana, Michigan, Pennsylvania, and West Virginia, along with a 300,000-square-foot distribution center and nearly 400,000 square feet of manufacturing.
Polaris Windows & DoorsSince 1959, Polaris Windows & Doors has manufactured replacement and new-construction vinyl windows and doors, beginning at its first plant in Youngstown, Ohio. The company became an early pioneer of vinyl replacement windows in 1979 and now distributes its products through authorized installer teams in 30 states. Its window systems use Polaris-designed vinyl extrusions and include the DuoTilt Lock System, while its products are made in the USA.AUSTINTOWN, OH
Plyco CorporationFor more than 70 years, Elkhart Lake’s Plyco Corporation has manufactured and distributed building components for post-frame, metal-clad and commercial construction, with metal doors and windows at the center of its offering. Its one-stop product range also includes horse-stall systems, ventilation components and reflective insulation, while dedicated-freight delivery is designed around the needs of builders and contractors. Plyco’s products are made in the USA and supported by scheduled delivery and customer service.NEW YORK, NY
MITER BrandsMITER Brands is a nationwide family of window and door manufacturers, formed in 2022 as the parent company uniting brands including MI Windows and Doors and Milgard. Its heritage traces to Metal Industries, which began in Florida in 1947, and the company says it serves homeowners and building-industry professionals across all 50 states. MITER Brands reports more than 15 manufacturing facilities in seven states.MILLERSBURG, PA
Pella CorporationFounded in 1925 by Pete and Lucille Kuyper, Pella Corporation is a family-owned manufacturer of windows and doors, based in Pella, Iowa. The company reports more than 10,000 team members, 20 manufacturing locations and over 200 showrooms, and says it has more than 150 product and design patents.GETTYSBURG, PA