Marq started his trade in probably Ireland's best known Dance Club-Sir Henry's.
Where he spent close to 8 years entertaining the Saturday night faithful and djing with the biggest names in Dance music.
The list is long and extensive and includes the likes of Carl Cox,Laurent Garnier,Sasha,Digweed,Christian Smith ,Silicone Soul,Danny Howells,Mr C and many more.
As well as Sir Henry's Marq has played in alot of Ireland's top clubs as well as guesting in clubs in New York and Boston and also held a residency in U2's Dublin Club The Kitchen as part of Genius.

In March 2011 Marq started a new Dance show on Cork's Redfm with Philip Bourke that goes out weekly on a friday night from 11-2 and features a mix of new and old dance music from all genres and gives a different dj a chance to have their mix aired each week.Also in 2011 the label Vision Collective Recordings was created and after only 2 releases they have been featured on BBC Radio 1 and Ministry Of Sound Radio aswell as Hotpress and a host of online Blogs and podcasts

As a producer Marq goes under the guise of QuestionmarQ and his style goes from Deep to Tech house .
QuestionmarQ tracks have been put out on various labels including Soma-Darkroom Dubs,SeedyR,Resopal Schalware ,Toto,Gotta Keep Faith,Manuscript,and most recently on Germany's 2600 Rec.
Dj's that that have played his tracks cover the whole spectrum from Nick Warren-Hernan Cattenoe to Lewis Ferrier and Dr Bob Jones