Rockwool International A/S, also known as the ROCKWOOL Group, is a Danish multinational manufacturer of mineral wool products headquartered in Hedehusene, Greater Copenhagen, Denmark. The company's product range is focused on insulation for technical installations, building insulation, industrial insulation, and soundproofing. The company operates in 39 countries across Europe, North America, and Asia. The ROCKWOOL Group employs over 11,700 people and generated ?2.9 billion in revenue in 2020.