Jörg Johnen opened his first gallery in Cologne in 1984, with an exhibition of works by Thomas Schütte and Aldo Rossi. The gallery organized more than 250 exhibitions, first as Johnen+Schöttle in Cologne, and since 2004 as Johnen Galerie in Berlin.
Renowned artists such as Stephan Balkenhol, Candice Breitz, David Claerbout, Martin Creed, Katharina Fritsch, Rodney Graham, Andreas Gursky, Candida Höfer, Martin Honert, Yoshitomo Nara, Thomas Ruff, Anri Sala, Thomas Schütte, Tino Sehgal, Wiebke Siem, Jeff Wall, Liu Ye and many others presented some of their earliest works with the gallery.
In connection with the gallery's 30th anniversary, Johnen opened an additional exhibition space in a landmarked 1825 buidling situated in the courtyard of the gallery with works by Martin Creed.
The Johnen Galerie merged in 2015 with Esther Schipper, who after a two-year transitional period has assumed all operations.
In 2018 his book "Marmor für Alle. Zur Kunst im öffentlichen Raum in Berlin" was published by Mitte/Rand Verlag.
Jānis AvotiņšJānis Avotiņš Johnen Galerie, Berlin November 14 – December 19, 2009
Rear RoomRoman Ondak Johnen Galerie, Berlin September 25 – November 7, 2009
preventative kiss for suspicious warMircea Cantor Johnen Galerie, Berlin May 1 – June 13, 2009
Answer MeAnri Sala Johnen Galerie, Berlin March 28 – April 25, 2009
Boarding HouseRoger Ballen Johnen Galerie, Berlin February 7 – March 21, 2009
Windows on the worldSlawomir Elsner Johnen Galerie, Berlin December 6, 2008 – January 31, 2009