Mainstream Publishing company to close its offices after 35 years 1 March 2013 Last updated at 11:18 An Edinburgh-based publishing company is to close its offices after 35 years. A total of 10 jobs will go when Mainstream Publishing, in the capital's Albany Street, shuts at the end of the year. It built its name publishing non-fiction and counts Hugh McIlvanney and Donald McRae among its authors. It will cease to acquire further new titles but will continue to produce its scheduled titles, the last of which is due to be published next March.