Anvil International manufactures pipe fittings and pipe hangers for use in the plumbing, mechanical, fire protection, water and wastewater, mining and oil and gas industries. Its products include Gruvlok brand fittings and Anvil-Strut brand metal channels, spring nuts, fittings and pipe and conduit supports. The company also offers AnviLink, a package of technology-based services such as inventory maintenance, data synchronization, data sharing, custom label making and barcode management. Anvil International was established in 1850 and has headquarters in Portsmouth, N.H. It also operates manufacturing facilities in Pennsylvania, Tennessee, Texas, Rhode Island and Ontario. The company s manufacturing facilities are certified according to ISO 9000 standards.