Auctioneers go Results Found: 2 Button group with nested dropdown Ritchie Bros. Auctioneers (America), ... Ritchie Bros. Auctioneers (America), Inc. 200 Ritchie Dr. South Vienna OH 45369 (937) 568-9500 Mumma Auctioneers & Mumma Realty Mumma Auctioneers & Mumma Realty 4 W. Main St., Suite 930 Springfield OH 45502-1387 (937) 324-3212