Strömer Mutroniks is a small-batch effects pedal and electronic instrument workshop founded by Swedish builder Åke Strömer and based in Brooklyn, New York. Strömer began building pedals in 1996, and the brand specializes in hand-wired, vintage-inspired circuits housed in custom-designed enclosures.

The lineup centers on fuzz and distortion. The Superfuzz (SF-2) is an interpretation of the 1970s Shin-ei Companion FY-6 / Univox Super-Fuzz, with an octave on/off switch and an expanded fuzz range that runs from light overdrive into thick, gated octave fuzz. The Distortion takes inspiration from the Electro-Harmonix Big Muff "Ram's Head" era and uses Alpha potentiometers, while the George is a hand-built compressor. Strömer has also branched into rhythm and percussion electronics with units such as the Drumvoice 2000 and the Electric Bongos.

Production is small and direct-to-buyer, with most units sold through the brand's Reverb shop and a handful of independent retailers such as Eastside Music Supply and Empire Guitars. The pedals are aimed at players chasing raw, guttural, garage- and punk-leaning fuzz tones rather than polished, modern voicings.

Stromer Mutroniks has 2 products cataloged on Equipboard, including Fuzz Effects Pedals and Electronic Pads. Their gear is featured by 1 artist, with the strongest followings in Rock. Notable users include Mark Arm.