Based in San Francisco, Calig., Westco Systems Inc. specializes in offering material for steel products in the construction industry. Founded in 1998, the company offers recast/prestressed concert (PC strand), tie wire, anchor bolts, slab bolsters and other concrete accessories across United States. It also serves as a wholesale distributor of products. Westco Systems PC Strand serves segments, including construction industries including residential, commercial and high-rise buildings, parking garages, bridges,highways, airports, liquid natural gas tanks, ground support and mining and stay cable bridges. The company is a member of the post-tensioning institute (PTI) and prestressed concrete institute (PCI).