Mark Williams is Director of Music, Fellow and College Lecturer at Jesus College Cambridge.  After a year as Organ Scholar at Truro Cathedral, he studied at Trinity College Cambridge under Richard Marlow, where he was also the Organ Scholar and held an academic scholarship.  In 2000, at the age of 21, he was appointed Assistant Organist of St Paul’s Cathedral in London and Director of Music at St Paul’s Cathedral School. He relinquished both posts in April of 2006 in order to pursue greater performing opportunities and for three years pursued a varied freelance career.  He returned to Cambridge in 2009. 
Mark Williams has appeared as organist and harpsichordist nationally and internationally with many of the UK’s leading ensembles, including the London Philharmonic Orchestra, the City of London Sinfonia and the Gabrieli Consort and Players.  As a conductor he has worked with Britten Sinfonia, the London Mozart Players, Saraband Consort and City of Prague Philharmonic Orchestra.  He has appeared as organist and conductor annually since 2000 at the International William Byrd Festival in Portland Oregon, and has given solo recitals and led masterclasses in choral training, singing and organ performance in the UK, the USA, Asia and Africa.  In March 2013, he led the Choir of Jesus College Cambridge in a pioneering collaboration with the charity Songbound working with children in the slums of Mumbai continuing this educational work in Sri Lanka in December 2014. Under his direction, the Choir has released four discs, the last of which entered the UK Classical Charts at No. 1 in February 2015.  He is the Chief Guest Conductor of the City of London Choir, a Fellow of the Royal College of Organists, a Freeman of the City of London, and a trustee of Cambridge Early Music, the Oundle Music Trust, the Harlton Organ Trust, the Muze Music Trust in Zambia and Songbound in India.  He is the Honorary President of the Chamber Choir of Erne Integrated College in Enniskillen.  
In addition to writing and arranging music for television and radio, Mark Williams has performed on a number of film soundtracks and has acted as music consultant for television programmes including the popular crime drama, Endeavour.  He appears on CD with the Choir of Jesus College Cambridge, the Choir of Trinity College Cambridge and Richard Marlow, the Royal Philharmonic Orchestra, the Cambridge Singers and John Rutter, the Bournemouth Symphony Orchestra, the City of Prague Philharmonic Orchestra, Retrospect Ensemble, The King's Consort, The Sixteen, Arcangelo and Cantores in Ecclesia.