KK Null has gained worldwide recognition for his solo works as well as his "progressive hardcore trio", Zeni Geva, which has worked with Steve Albini, and produced more than 10 albums, recording two John Peel Sessions for the BBC. Zeni Geva has toured numerous times in Europe and the United States, as well as Australia New Zealand. All the while, KK Null has worked on his solo career and collaborated with other musical innovators such as Steve Albini, Merzbow, John Zorn, Fred Frith, James Plotkin, Jim O'Rourke, Keiji Haino, Seiichi Yamamoto (Boredoms), Otomo Yoshihide, Jon Rose, Atau Tanaka, Zbigniew Karkowski, Philip Samartzis, David Brown, Masonna, Incapacitants, Astro and more. KK Null has also performed as main support for artists such as Sonic Youth and Mike Patton.