nag as a gallery was founded by the curator Mark St.John Ellis in 2012.

In 2014 nagOffsite was originally established as an Art Consultancy taking contemporary fine art into commercial and private interiors throughout Ireland and London, including a project in Kyoto, Japan. By working with such companies as Minima, Bultaup and Farrow and Ball, nagOffsite Arts Consultancy has evolved its expertise in combining gallery presentation with design.

nagOffsite Arts Consultancy offers professional advice with technical installation that introduces art into the home or enhances the installation of existing works of art collectors and enthusiasts alike.