ALBA
Diarmaid* And Donncha Moynihan
The Lights Of Ranzanico
2010, CD, Album, DM Music (2)
Mark O'Leary - Şenol Küçükyıldırım - Murat Çopur - Can Ömer Uygan
Snow
2010, CDr, Album, TIBProd. Italy
Mark O'Leary & Sunny Murray
Ode To Albert Ayler
2009
Cork Gamelan Ensemble
The Three Forges
2015, CD, Album, Ltd, Diatribe Recordings
O'Leary* - Louhivuori* - Hauta-aho*
Astral Fishing Extended Edition
2012
Karl Nesbitt
Vistapoint
2009, CD, Album, Not On Label (Karl Nesbitt Self-released)
Niall Connolly
The Future Tense
2007, CD, Album, C.U. Records, 
Mark O'Leary / Mat Maneri / Randy Peterson
Self-Luminous
2005, CD, Album, Leo Records
Mark O'Leary / Mat Maneri / Matthew Shipp
Chamber Trio
2005, CD, Album, Leo Records, 
,
, Free Improvisation/Free Jazz
Mark O'Leary / Tomasz Stanko* / Billy Hart
Levitation
2005, CD, Album, Leo Records
Mark O'Leary / Uri Caine / Ben Perowsky
Closure
2005, CD, Album, Leo Records, ,
, Free Jazz/Contemporary Jazz
The Red Hat Band
Covering Ground
2003, CD, Album, Red Hat Music,
Calico
Celanova Square
1998, CD, Album, Ossian
KOMPILACE +
Robert Curgenven
Tailte Cré-Umha (Bronze Lands) - Live at Cork Midsummer Festival
2021, File, FLAC, EP, Recorded Fields Editions, ,
, Contemporary
José Manuel Tejedor
Miraes
2018, CD, Album, miraes, 
,
, Celtic
Clare Sands
Join Me At The Table
2016, CD, Album, Not On Label (Clare Sands Self-released)
Mark O'Leary & Jeff Herr & Søren Kjærgaard
Antarctica
2012, CDr, Album, TIBProd. Italy, 
,
, Dark Ambient/New Age/Drone/Experimental/Ambient
Mark O'Leary • Peter Friis-Nielsen* • Stefan Pasborg
Støj
2011, CD, Album, Ayler Records
O'Leary* - Gauthier* - Cline*
Waves III
2011, CDr, Album, TIBProd. Italy
Mark O'Leary, Matthew Shipp
Labyrinth
2009, CD, Album, FMR Records (2)
Mark O'Leary
Atmos
2009, CD, Album, FMR Records (2)
Mark O'Leary / Eyvind Kang / Dylan Van Der Schyff
Zemlya
2008, CD, Album, Leo Records
Mark O'Leary / Ståle Storløkken / Stein Inge Braekhus*
St Fin Barre's
2008, CD, Album, Leo Records, ,
, Free Improvisation
Mark O'Leary / Günter Müller
Skyshifter
2007, CD, Album, Ltd, Creative Sources, 
,
, Abstract/Musique Concrète/Minimal/Experimental/Ambient
Mark O'Leary
On The Shore
2007, CD, Album, Clean Feed
Mark O'Leary
Signs
2007, CD, Album, FMR Records (2)
Mark O'Leary / Steve Swallow / Pierre Favre
Awakening
2006, CD, Album, Leo Records
Mark O'Leary / Cuong Vu / Tom Rainey
Waiting
2006, CD, Album, Leo Records, ,
, Free Improvisation
Caoimhín Vallely
Strayaway
2005, CD, Not On Label (Caoimhín Vallely Self-released), ,
, Contemporary/Folk
Různí
Musicians Of Ireland
2004
Tremolo
Tremolo
CD, EP, Not On Label