Hexinverter Électronique is a Montreal, Canada-based maker of Eurorack modular synthesizer modules, founded by Stacy Gaudreau. The company grew out of a small team of electronic music enthusiasts with roots in Eastern Canada's electronic music scene, and has earned a reputation for unusual approaches to classic synthesis techniques — particularly in the realm of analog percussion.

Hexinverter is best known for the Mutant Drums series, a lineup of dedicated analog percussion modules including the Mutant Bassdrum, Mutant Snare, Mutant Clap, Mutant Hihats, and the flagship Mutant Machine — a dynamic analog percussion engine capable of producing everything from 909-style kicks and snares to complex drones and oscillations. Beyond percussion, the company's catalog includes the Mindphaser complex oscillator with thru-zero phase modulation, the Red Dragon four-pole lowpass filter, the Jupiter Storm noise oscillator, the batteryACID voltage-controlled distortion, and the Mutant Brain MIDI-to-CV converter. Several of these modules are manufactured and distributed in collaboration with Erica Synths, who also partnered with Hexinverter on the HexDrums, a standalone analog drum machine combining Hexinverter's sound design with Erica Synths' hands-on interface philosophy.

Hexinverter has 19 products cataloged on Equipboard, including Modular Synthesizers. Their gear is featured by 9 artists, with the strongest followings in Electronic, Rock, and Pop. Notable users include Andrew Huang, Richard Devine, and Surgeon. Most Hexinverter products fall in the mid-tier range — professional-grade without flagship pricing.