In 1963 DuBois Chemical consolidated two of its’ plants into one 75,000 square foot operation in the City. In 1967 Challenge-Cook Bros., Inc. combined three of their operations (in Los Angeles) into one 27-acre headquarters and manufacturing facility in the City of Industry. At the time they were the largest manufacturer of construction equipment in the west. In late 1967 Walter Carpet Mills built their 200,000 square foot, $3 million carpet mill on 10 acres in Industry, billed as the largest carpet manufacturing operation west of the Mississippi.