George Massenburg Labs (GML) is a high-end professional audio electronics company founded in 1982 by Grammy-winning recording engineer George Massenburg. The company grew directly out of Massenburg's 1972 Audio Engineering Society paper introducing the parametric equalizer, and its first commercial product, the GML 8200 Parametric Equalizer, became a reference-grade mastering and mixing tool widely adopted in top-tier recording studios.

GML's catalog focuses on discrete analog signal processing built around Massenburg's original circuit designs. Notable products include the 8200 parametric EQ, the 8300 transformerless microphone preamplifier, the 8900 Dynamic Range Controller (which responds to perceived loudness rather than voltage peaks), and rack units such as the 2032 mic pre/EQ channel strip, 8302 line amplifier, and 9500 mastering equalizer. The company has also produced console automation and fader systems used in high-end music production and film mixing environments.

The brand's reputation rests on measurement-driven design, all-discrete circuitry, DC-servo stabilization, and transformerless topologies, aimed primarily at mastering engineers, tracking and mixing studios, and mastering-grade rooms rather than the project-studio market.

GML has 6 products cataloged on Equipboard, including Effects Processors and Preamps. Their gear is featured by 8 artists, with the strongest followings in Rock, Pop, and Electronic. Notable users include Neeraj Khajanchi, Steve Albini, and Tommy Lee.