In 2004, he founded Sidewalk 7 Limited in the United Kingdom. Initially founded as a company to act as the vehicle for Gardner's projects and creative ventures, it expanded to a business including a record label, an artist management company and event production agency. Sidewalk 7 Limited released over thirty titles internationally from acts including Winter Roberts, This is Radio Freedom, Jim Kroft, Al Catraz, Billy Vincent and The Blue Eyed Shark Experiment. The company successfully managed campaigns on behalf of artists and garnered radio play on the BBC, television coverage on MTV and widespread college recognition in the United States.