Based out of Joplin, Missouri the name was established as an acronym for Texas, Arkansas, Missouri, Kansas and Oklahoma.  While they operate in 48 out of 50 states they are one of the smaller shingles manufacture’s overall in the US.   Unfortunately TAMKO has had an ongoing class action lawsuit in regards to possible defective shingles.  While producing a more limited offering in asphalt models then their bigger competitors Owens Corning, GAF, and Certainteed they do have the basics at a fair price.  Below are the choices.  Research Roofing considers TAMKO on the cheaper lesser quality end on the asphalt shingle spectrum based on online feedback.