About GD Harries
GD Harries is one of Wales’ largest independent suppliers of aggregates as well as being a major civil engineering company.
Situated in West Wales, we own seven granite, limestone and sandstone quarries, three asphalt plants, eight concrete plants and our own sea transportation port at Pembroke Dock.
Originally established as a small haulage and plant hire operator in 1977, GD Harries has continually invested in our local workforce and where possible work with local suppliers in the region. In 2020 we became part of SigmaRoc, a specialist quarrying group who invest in high quality quarries throughout Europe to extract low and high grade materials for use in construction, agriculture, environmental and industrial applications. GD Harries is the cornerstone for SigmaRoc’s Welsh platform.