Steck was a brand of pianos manufactured from 1857 to 1985. They were initially made by George Steck & Company before combining with the Aeolian Company in 1904. The Aeolian Company went bankrupt in 1985. The Steck piano brand was then sold to Sohmer & Co., and then to America Sejung Corporation, which dissolved in 2013.

The Aeolian Company was a musical-instrument making firm whose products included player organs, pianos, sheet music, records and phonographs. Founded in 1887, it was at one point the world's largest such firm. During the mid 20th century, it surpassed Kimball to become the largest supplier of pianos in the United States, having contracts with Steinway & Sons due to its Duo-Art system of player pianos. It went out of business in 1985.