George Gross was active in the piano industry during the early part of the 20th Century. His firm was located at 139 Charles Street in New York City. The George Gross Piano Company was likely a smaller, family-owned firm. They specialized in upright pianos and player pianos, including a player piano sold as the "Aero-Tone Player Piano". Some pianos labeled as "George Gross Piano Company" were manufactured by The Hasbrouk Piano Company of New York under special contract. It appears that George Gross built pianos in modest numbers, and instruments by the firm are rarely encountered today.