Hilbish Design is a boutique amplifier and effects pedal company based in Lynchburg, Virginia, founded by electrical engineer Nathan Hilbish. The company builds handmade, heavy-duty gear aimed squarely at players in the doom, sludge, noise, and heavy rock worlds. Their flagship product, the betaAMPLIFIER 200, delivers 200 watts into 4 ohms through two foot-switchable parallel channels with five effects loops, covering everything from clean tones to full-on fuzz. The Beta Preamplifier offers the same tonal platform in a more compact format.

On the pedal side, the Pessimiser is a signature distortion developed in collaboration with King Buzzo of the Melvins, featuring a wide-range 3-band active EQ and a boost control that spans from light overdrive to extreme fuzz. The Sol Invictus is a dual-channel distortion and preamp pedal, while the T-Fuzz, Compressimiser, and Deathimizer round out a lineup built for high-gain applications. Hilbish Design also produces the GT120 amplifier chassis kit for DIY builders.

The brand's artist roster reflects its heavy music pedigree, including King Buzzo and Jared Warren of the Melvins, Jeff Matz of High On Fire, Garrett Morris of Windhand, Matt Cameron of Pearl Jam and Soundgarden, Ichirou Agata of Melt-Banana, and Randy Randall of No Age. All products are handmade in folded steel enclosures with custom finish options.

Hilbish Designs has 7 products cataloged on Equipboard, including Overdrive Effects Pedals, Fuzz Effects Pedals, and Guitar Preamps. Their gear is featured by 5 artists, with the strongest followings in Rock and Metal. Notable users include Buzz Osborne (aka King Buzzo), Takeshi Ohtani, and Doug Martsch.