Private company

Hermstedt

German computer networking equipment manufacturer

Hermstedt AG was a German company primarily known for manufacturing ISDN hardware, including ISDN expansion cards. The company was founded in 1987.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Hermstedt Leonardo SP-PCI-7982
Photo: Raimond Spekking, CC BY-SA 4.0, via Wikimedia Commons3

Hermstedt AG was a German company primarily known for manufacturing ISDN hardware, including ISDN expansion cards. The company was founded in 1987.2

Sources

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