For more than 90 years, Specialty Granules LLC (SGI) has been a leading producer of semi-ceramic coated, colored mineral granules for the North American residential and commercial roofing industry. Our longevity is a testament to our dependability as a supplier and the durability of our products. We take pride in the long-term relationships we have cultivated with the roofing industry’s manufacturers.
A privately held company, we have the ability and resources to provide exceptional customer service through our high standards of product quality, innovation, and responsiveness to the needs of our customers.
In addition to our Headquarters and Technical Center in Hagerstown, MD, we operate 4 manufacturing locations across the U.S. — Blue Ridge Summit, PA (also called Charmian); Annapolis, MO; Pembine, WI (also called Kremlin); and Ione, CA.
In each of the communities in which we are located, SGI has become a premier place to work. Our employees enjoy our strong emphasis on safety, our positive work environment, competitive wages and benefits, and our long term stability.