H+H can trace its beginnings back to 1909, when contractor Henrik Johan Henriksen and tileworks owner Waldemar Kähler established a joint gravel pit enterprise.

Core activity is the manufacture and sale of wall building materials and had a revenue in 2017 of DKK 1.6 billion before acquisition of the calcium silicate product line.

The main product lines are aircrete blocks and since 2018 calcium silicate units used for the residential new building segment.

H+H has 28 factories in Northern and Central Europe and Northwest Russia with a total output of more than 4 million cubic metres of products annually and has a leading position in most of its markets.

H+H has around 1,600 employees and is listed on Nasdaq Copenhagen.