Keystone Supplies Ltd. specialises in the supply of natural stone, in all formats, from our base in Co. Carlow. With a combined experience within the industry of over eighty years, our aim is to supply materials, through our network of quarries and producers across the world. Material quality and a high level of service are at the core of what we aim to offer our customers. This combined with full design, technical and logistic service, means that there is no requirement within the natural stone supply market which we cannot meet.