Trogotronic is a California-based builder of unorthodox analog synthesizers, audio artifact generators, and effects, hand-assembled in small runs by a team that calls itself the Trogotronic Subhumans. The company has been making audio instruments for more than three decades, with a design philosophy that favors raw, organic, and at times intentionally unstable sound generation over the clinical signal control of classic 1960s-era synth design.

Their catalog spans desktop synths, Eurorack modules (the M-Series), controllers, light-driven FX, and tube-based instruments. Recurring landmark designs include the TR Ogre, the VHR Valkyrie quad-tube synth/effect, the m/669 analog artifact module, and the ms658 Mother Mutant. Trogotronic gear is a regular fixture in noise, industrial, experimental, and dark ambient circles, where it is sought out for its dirty oscillators, vacuum-tube grit, and unpredictable feedback behavior.

Trogotronic has 7 products cataloged on Equipboard, including Synthesizers, Overdrive Effects Pedals, and DJ Controllers. Their gear is featured by 7 artists, with the strongest followings in Rock, Electronic, and Metal. Notable users include Dylan Walker, Pedram Valiani, and Mick Gordon.