Rockwool International

Rockwool A/S
Company type	Public company
Traded as	Nasdaq Copenhagen: ROCK A (Class A); Nasdaq Copenhagen: ROCK B (Class B); OTC Pink Limited: RKWAF (Class A); OTC Pink Limited: RKWBF (Class B); OMXC25CAP component (ROCK B);
ISIN	DK0010219070; DK0010219153;
Industry	Building materials
Founded	1909
Founder	Henrik Johan Henriksen and Valdemar Kähler
Headquarters	Hedehusene, Denmark
Key people	Jens Birgersson (CEO), Thomas Kähler (chairman)
Products	Mineral wool products
Revenue	EUR 2,671 million (2018); EUR 2,374 million (2017);
Number of employees	11,600 (31/12 2018)
Subsidiaries	Rockfon; Grodan; Rockpanel; Lapinus; Rockwool A/S;
Website	https://www.rockwoolgroup.com

Rockwool A/S (or AS), also known as the ROCKWOOL Group, is a Danish multinational manufacturer of mineral wool products headquartered in Hedehusene, Greater Copenhagen, Denmark. The company's R&D unit, employing 100 people as of 2016, is co-located with the headquarters in Copenhagen.

Rockwool was the world's largest maker of insulation materials in 2009, but had fallen to the second largest by 2016. As of 2009, 90% of the company's revenue came from the sale of insulation products, while 80% came from sales in Europe.