HarbisonWalker HarbisonWalker (HWI, formerly known as ANH Refractories) is a supplier of refractory products and services. | ![]() Vesuvius USA Vesuvius USA is a company that designs, engineers, manufactures, and delivers refractory products, systems, and services. | ![]() Calderys Calderys is a company specializing in the production of heat-resistant monolithic refractory products. | |
Founding Date | Founding Date 1865 | Founding Date 1966 | Founding Date 2005 |
Type | Type Private | Type Subsidiary | Type Subsidiary |
Tags | |||
Locations | Locations Pittsburgh, US HQ Acton, CA Smithville, CA Guadalajara, MX Salinas Victoria, MX Tlalnepantla De Baz, MX see more | Locations Champaign, US HQ Charleston, US Chicago Heights, US Coraopolis, US Graham, US Philadelphia, US Pittsburgh, US see more | Locations Paris, FR HQ Unanderra, AU Wiener Neudorf, AT Terhulpen, BE Sao Paulo, BR Sofia, BG Suzhou, CN see more |
Employees | Employees 788 | Employees 556 | Employees 2,6791% increase |
Operating ⚠ | |||
Industries Served | Industries Served 16 (Jun, 2021) | Industries Served N/A | Industries Served 4 (Mar, 2023) |

Vesuvius USA is a company that designs, engineers, manufactures, and delivers refractory products, systems, and services.
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Calderys is a company specializing in the production of heat-resistant monolithic refractory products.
View company