Rockruepel is a boutique pro audio manufacturer based in Düsseldorf, Germany, founded in 2004 by Oliver Gregor. The company designs and hand-builds fully analog dynamics processors aimed at professional recording, mixing, and mastering work, with an emphasis on tube and discrete circuit topologies, fully-balanced signal paths, and high-grade component selection.

The lineup centers on a small range of compressors and a limiter. Rockruepel launched with the comp.one tube compressor and later released the comp.two, an all-valve variable-mu compressor designed to function as a tracking tone shaper, mix bus processor, or mastering compressor. The limit.one is a stereo/dual-mono analog mastering limiter, while the sidechain.one is a mono VCA compressor with sidechain filtering, co-developed with Grammy-nominated mastering engineer Luca Pretolesi of StudioDMI. A software version of the comp.two has also been released as a plugin in collaboration with Process.Audio.

The brand's hardware has found a following among mastering and mix engineers including Russell Elevado, Luca Pretolesi, Max Dingel, Paul Stacey, and Fab Dupont. Rockruepel products are distributed in Europe through Mastering Works.

Rockruepel has 2 products cataloged on Equipboard, including Effects Processors.