| 2017 | Harvest, Theca Gallery, Milano |
| 2015 | The Perception of the Future, Galleria Nazionale dell'Umbria, Perugia |
| 2012 | Galleria Rubin, Milano |
| 2011 | Fabbri Contemporary Art, Milan |
| 2011 | Alla luce della Croce Arte antica e contemporanea a confronto, Raccolta Lercaro, Bologna |
| 2010 | State of mind. The Panza Collection, Centre of contemporary art, Lucca |
| 2010 | Homage a A.Scaccabarazzi, Galerie Katherine Krohn, Basel |
| 2010 | Le Deuil, IFF, Marsielle |
| 2010 | Hugh Lane Centenary Print Exhibition - Wexford Arts Centre, Wexford |
| 2010 | La pittura è oro #2, DOCVA - Documentation center of Visual Arts, Milan |
| 2009 | The Weight of Light, Visual - Centre for Contemporary Art, Carlow |
| 2009 | Terror and the Sublime: Art in an Age of Anxiety - Crawford Art Gallery, Cork |
| 2007 | Colour Based Paintings - Bergner & Job Galerie, Mainz |
| 2006 | Color Based Paintings ll - Bergner & Job Galerie, Mainz |
| 2006 | Crystal Grey - Peacock Visual Arts, Aberdeen |
| 2005 | Lebendiges Grau - Karl Ernst Osthaus-Museum, Hagen |
| 2004 | Color Based Paintings - Bergner & Job Galerie, Mainz |
| 2003 | Colour Chart - Ormaeu Baths, Belfast |
| 2003 | Trilogia del colore - Galleria Rubin, Milan |
| 2003 | Seeing Red - Hunter college, New YorkTriangolino Arts centre Riverbank, Newbridge |
| 2003 | Colour Based Painting - Bergner + Job Galerie, Mainz |
| 2002 | Morandi e I Morandiani - Cascina Roma, San Donato Milanese |
| 2002 | Colour-A Life Of It’s Own - Mucsarnok, Kunsthalle, Budapest |
| 2002 | The Rowan Collection - Irish Museum of Modern Art, Dublin |
| 2002 | No Object, No Subject,No Matter… - Irish Museum of Modern Art, Dublin |
| 2002 | Astrazione Zero - Spazio O, Milan |
| 2002 | Gallerie S65, Cologne |
| 2002 | Sei - Galleria Corraini, Mantova |
| 2002 | Sight Specific - Kilkenny Arts Festival, Kilkenny |
| 2002 | Palazzo Piacentini, San Benedetto del Tronto |
| 2000 | Antonio Scaccabarozzi, Stephanè Bordarier and Seán Shanahan” Le 19, Centre Regional d’Art contemporian, Montbéliard |
| 2000 | Shifting Ground - Irish Museum of Modern Art, Dublin |
| 2000 | Galleria Grossetti, Milan |
| 1999 | ...Die Farbe (Rot) hat mich - Karl Ernst Osthaus Museum, Hagen |
| 1999 | Galerie Agnes b du Jour, Paris |
| 1998 | Kerlin Gallery, Dublin |
| 1998 | L’abstraction & ses territoires, Le 19 - Centre Regional d’Art contemporian, Montbéliard |
| 1998 | EV+A - Limerick City Art Gallery, Limerick |
| 1998 | Peter Davis,Callum Innes and Seán Shanahan - Slewe Galerie, Amsterdam |
| 1998 | A collection in the Making, Irish Museum of Modern Art, Dublin |
| 1997 | Residue, Douglas Hyde Gallery, Dublin |
| 1996 | Non Plus Ultra - Lorenzelli Arte, Milan |
| 1996 | Gallery Artists - Kerlin Gallery, Dublin |
| 1996 | Optical Consciousness - travelled to Stelling Gallery, Leiden, Verduno |
| 1996 | Acquisitions '95 - Irish Museum of Modern Art, Dublin |
| 1996 | 150 years of Heatherleys School of Fine Art - The Mall Gallery, London |
| 1996 | L'Imaginaire Irlandais - Ecole Nationale Superieure des Beaux-Arts, Paris |
| 1996 | Mostra d'Adda, Castello di Corneliano Bertario |
| 1996 | Invitational, Praler Insel, Munich |
| 1996 | Consistenza della pittura, Premio Michetti - Fondazione F.P. Michetti, Francavilla al Mare |
| 1996 | L'inquieto geometrico - Studio Carlo Grossetti, Milan |
| 1994 | Kerlin Gallery, Dublin |
| 1993 | Unveiled, Cornerhouse, Manchester |
| 1993 | A Selection from the Contemporary Arts Society Collection Pittori Europe, A Milano, Forum di Assago, Assago |
| 1991 | Oggi - Today - Studio Carlo Grossetti, Milan |
| 1987 | Schemata - Riverside Studios, London |
| 1987 | Tussenblik: de Zonnehof, Amersfoort; de Waag, Almelo; het Kruithuis, S-Hertogenbosch; Stadgalerij, Heerlen; de Lakenhal, Leiden Rijksaankopen, Rijksdienst, Beeldende kunst, het Prinsenhof, Delft, Holland. |
| 1987 | Permiable del gesto, curated by Andre Garcia Cubo Centro Gallilejo, Madrid |
| 1986 | Zomertentoonstelling, Den Helder |
| 1986 | Kunst, RAI, Amsterdam |
| 1986 | Zones - Aorta, Amsterdam |
| 1984 | Five Painters - Riverside Studios, London |
| 1982 | Early Works - Edinburgh Festival, Scotland |