Signature Stone is a full-service company that designs and manufactures architectural cast stone products and serves architects, designers and contractors. The company operates a more than 55,000 square feet of manufacturing facility. It is a member of the National Association of Home Builders, Associated Landscape Contractors of Colorado and American Society of landscaper Architectures. It offers retaining wall systems, pre-cast columns and pillars, concrete rail fencing, fireplace surrounds, wall and column caps, customized address stones, pyramid caps and wall outlet stones. The company also offers stone veneer products in various styles, including castle stone, chateau, rustic ridge, rubble rock and split stone. Signature Stone is located in Greeley, Colo.