Allen Organ Company was founded in 1937 and named after its birthplace, Allentown, Pennsylvania.

In 1971, as the culmination of a collaborative effort with North American Rockwell,[3] Allen introduced the world's first commercially-available digital musical instrument.

In Allen's implementation of the technique, the acoustics of the sampled room become an integral part of the organ's sound.

Some are: The Allen Organ Company factory building is located at 150 Locust Street in Macungie, Pennsylvania.

As the company grew, The International Sales Headquarters was built including Octave Hall (a room with adjustable natural reverb and rotating stage), teaching studios, a recording studio and the adjoining Jerome Markowitz Memorial Museum is located on Route 100.