Nicolaas Douwma (born 13 April 1982), better known by his stage name Sub Focus, is an English DJ, record producer, songwriter, musician and sound engineer from Guildford, Surrey. He has been releasing records since 2003. On 12 October 2009, he released his self-titled debut album. He released his second album, Torus, on 30 September 2013. Douwma's album in collaboration with Wilkinson titled Portals was released on 9 October 2020 through Casablanca Records.