KM was founded in 2012 by Nina & Jens Mentrup in Berlin. In 2017, the gallery moved into its current space at Mehringplatz.

KM represents thirteen international artists working in media such as performance, installation, photography, video, painting and sculpture. Solo presentations alternate with curated group exhibitions.

The gallery regularly participates in art fairs such as Art Cologne and art berlin). In 2017, KM was among the three winners of the VBKI prize for Berlin galleries.