George Mattson is an engineer who worked at Oberheim Electronics during the company's transition from modular polyphonic systems to compact, programmable synthesizers in the mid-1980s.

Mattson contributed to the Oberheim Xpander, a six-voice desktop synthesizer with a matrix modulation system that offered deep programming flexibility without a keyboard — a favorite among film composers and experimental musicians. He also worked on the Matrix-6, a more affordable six-voice synth that brought Oberheim's filter character to a wider market.

These instruments used Curtis (CEM) chips for oscillators and filters, representing the mature period of analog polysynth design before digital workstations displaced the market segment.

Notable products: Oberheim Xpander, Matrix-6.