The Schweizerische Schifffahrtsgesellschaft Untersee und Rhein AG (URh), lit.

'Swiss Navigation Company of the Untersee and Rhine', is an Aktiengesellschaft (AG) based in the Swiss town of Schaffhausen.

It operates regular boat lines (spring–autumn) between Schaffhausen and Kreuzlingen, on the High Rhine, Seerhein and western part of Lake Constance (Bodensee).

[1] The company was founded in 1850 as the Schweizerische Dampfboot-Aktiengesellschaft (Swiss paddle steamer corporation).

The Schweizerische Schifffahrtsgesellschaft Untersee und Rhein (URh) operates on the High Rhine (Hochrhein) and the western part of Lake Constance (Bodensee).