Tempel Tempel is a manufacturer of precision magnetic steel laminations for automotive, generator, motor, and transformer applications. | ![]() Proterial America Proterial America (formerly known as Hitachi Metals America) is a manufacturer of automotive-related, infrastructure and energy, and electronic-related products. | ||
Founding Date | Founding Date 1945 | Founding Date 1965 | Founding Date 1873 |
Type | Type Private | Type Subsidiary | Type Public |
Tags | |||
Locations | Locations Chicago, US HQ Burlington, CA Changzhou, CN Chennai, IN Ciudad Apodaca, MX | Locations Harrison, US HQ Arlington Heights, US China Grove, US Farmington Hills, US Hopkinton, US Manchester, US Milpitas, US see more | Locations Västra Frölunda, SE HQ Tianjin, CN Bergkamen, DE Bielsko Biała, PL Nizhnij Novgorod, RU Hallstahammar, SE see more |
Employees | Employees 575 | Employees 2261% increase | Employees 1,915 |
Financial | |||
Revenue (est.) | Revenue (est.) $377m (Y, 2021) | Revenue (est.) N/A | Revenue (est.) kr5b (FY, 2025) |

Proterial America (formerly known as Hitachi Metals America) is a manufacturer of automotive-related, infrastructure and energy, and electronic-related products.
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