nag Gallery was founded in October 2012 by the curator Mark St.John Ellis. In 2014 nag Offsite was created as a subsidiary company taking contemporary art into domestic and commercial environments where the prospective collector / client can purchase a single work of art or engage the services of nag Offsite to install entire areas where the works can either be purchased or leased. Expert advise can also be given on the installation of the existing collection of a client. This would involve a professional consultation, interior design and the re-hanging of the art work. To date this has ranged from the private home to the public space.

nag Gallery represented artists tend to have a commonality in process, an obsession for detail, refined execution and finish in the disciplines of drawing, painting, photography, sculpture and film making. nag Gallery also directly represents artists from Japan making traditional pottery which enhances the nag Gallery aesthetic philosophy.