Marq started his trade in probably Ireland's best known Dance Club-Sir Henry's.
Where he spent close to 10 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 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,Manuscrip..