SlabMarket - Buy Granite and Marble Slabs direct from Quarries Matt Anderson is the general manager of A&M Granite and a Slab Market user. Below is an interview about his experiences with Slab Market. Slab Market: Tell us a little bit about your company. Matt Anderson: My company A&M Granite has been in the industry for over ten years and we specialize in fabrication of natural stone countertops. We are a small fabricator located in the western United ...