The company was formed by former Hammond-Suzuki Northeast Regional Sales Representative and Marketing Services Manager Tom Tuson,[2] who had been impressed by a drawbar MIDI module manufactured by Voce, which used physical modelling instead of samples.

He became friends with Voce's Dave Amels, and the two decided to collaborate on a project to create their own organ.

"[4] The company received a major boost when Joey DeFrancesco, self-described as "the finest jazz organist on the planet", publicly announced he had "defected from Hammond" and was now actively endorsing Diversi and owning a stake in the business.

was recorded entirely on a Diversi, with sleeve note author Michael G Nastos declaring that "the instrument DeFrancesco plays acts and sounds like an organ, if possible with a richer, deeper tone, especially in the bass foot pedals.”[6] His father, Papa John DeFrancesco also used the Diversi to record Big Shot.

[2] Tom Tuson had made a specific point in interviews, that Diversi could offer a more affordable drawbar organ with a better sound engine alternative than Hammond Suzuki's "New B3," while being at a lower price and including a built-in Leslie speaker simulator.