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About us

Guardian is one of the world’s largest manufacturers of float glass and fabricated glass products. We manufacture and supply the automotive industry with a variety of exterior products. We play a significant role in the building materials distribution business and are a major manufacturer of fiberglass insulation. And somewhere along the line, we became the world's largest producer of mirrors.
Headquartered in Auburn Hills, Michigan, U.S.A., Guardian is a global company with locations and capabilities to serve you everywhere. We employ 18,000 people across our locations in more than 25 countries, on five continents, and we value them above all else.
Our management structure is specifically designed to encourage individuals to flourish. We work hard to create an environment that thrives on the initiative, creativity and expertise of our people. We focus on innovation, quality and results—avoiding bureaucratic nonsense. And, it works: just ask any of our thousands of satisfied customers.