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. | ![]() Vesuvius Vesuvius (formerly known as Vesuvius Technologies) is a company that provides molten metal flow engineering and technology 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 1916 | Founding Date 2005 |
Type | Type Private | Type Subsidiary | Type Public | 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 London, GB HQ Los Cardos, AR Rosario, AR Morningside, AU Padstow, AU Port Kembla, AU Welshpool, AU 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 11,071 | Employees 2,6791% increase |
Financial | ||||
Revenue (est.) | Revenue (est.) N/A | Revenue (est.) N/A | Revenue (est.) £1.8b (FY, 2025) | Revenue (est.) €108.4m (FY, 2021) |
Cost of goods | Cost of goods N/A | Cost of goods N/A | Cost of goods £807.5m (FY, 2025) | Cost of goods €58.6m (FY, 2021) |
Gross profit | Gross profit N/A | Gross profit N/A | Gross profit £1b (FY, 2025) | Gross profit €49.8m (FY, 2021) |
Net income | Net income N/A | Net income N/A | Net income £64.8m (FY, 2025) | Net income €3.4m (FY, 2021) |
Operating ⚠ | ||||
Countries | Countries N/A | Countries N/A | Countries 40 (FY, 2022) | Countries 30 (Mar, 2023) |
Industries Served | Industries Served 16 (Jun, 2021) | Industries Served N/A | 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.
View company
Vesuvius (formerly known as Vesuvius Technologies) is a company that provides molten metal flow engineering and technology services.
View company
Calderys is a company specializing in the production of heat-resistant monolithic refractory products.
View company