He is a founding member of Master Musicians of Bukkake, and as a record producer has worked with musical acts such as Sunn O))), Wolves in the Throne Room, Boris, Lesbian, Kinski, Akron/Family, Oren Ambarchi, Eyvind Kang, The Cave Singers, Earth, and Jesse Sykes, among others.
It is also the name of a 2010 album by musical artist Oren Ambarchi with Jim O'Rourke and Keiji Haino (Black Truffle).
Oren Ambarchi | Oren Patashnik | Michael Oren | Oren Williams | Oren Bloedow | Ram Oren | Oren (spy) | Oren Rudavsky | Oren Peli | Oren Moverman | '''Oren''', Michael B. | Oren Lyons | Oren Jacoby | Oren Harris | Oren Harari | Oren Ginzburg | Oren Etzioni | Oren Brown | Ören, Boyabat | ''Oren'' |
Mattin has collaborated with other artists including; Dion Workman, Taku Unami, Emma Hedditch, Margarida Garcia, Xabier Erkizia, Karin Schneider, Oren Ambarchi, Dean Roberts, Bruce Russell, Campbell Kneale, Tony Conrad, Taku Sugimoto, Matthew Bower, Philip Best, Drunkdriver, Ray Brassier and Junko.
They also are a UK-based music publisher, with such composers as Oren Ambarchi, Leif Elggren, Christian Fennesz, Soliman Gamil, Hildur Guðnadóttir, Geir Jenssen, Stephan Mathieu, Phill Niblock, Robert Hampson, BJNilsen (alias Hazard), Rosy Parlane, Peter Rehberg, Carl Michael von Hausswolff, Chris Watson and Jana Winderen on their roster.