Owens Corning Corporation is the world's largest manufacturer of fiberglass and related products. It was formed in 1935 as a partnership between two major American glassworks, Corning Glass Works and Owens-Illinois. The company was spun off as a separate entity November 1, 1938.

Among the many products of Owens Corning is its fiberglass insulation. Since 1956, the company's insulation has been dyed pink to provide visual contrast; the company became so associated with its pink insulation (originally planned as red, but the dye was not sufficiently concentrated, resulting in its current, trademarked light pink coloring) product that it even registered the term "PINK" (in capital letters only) to refer to its insulation. It is the only company in the United States ever to be granted a trademark on a color In re Owens-Corning Fiberglas Corp.,, 774 F.2d 1116 (Fed. Cir. 1985). The cartoon character of the Pink Panther is used by Owens Corning as the mascot of its insulation division.

Another major product of Owens Corning is derived from its use of fiberglass as reinforcement for plastic products. The resulting fiberglass-reinforced plastic is the form of "fiberglass" used in boat hulls, automobile roofs, pipes, electris windmill blades, etc. Their product is sold under the trade name of "Fiberglas"®.

Diversity

Owens Corning received a 100% rating on the Corporate Equality Index released by the Human Rights Campaign starting in 2004, the third year of the report.