Shadow Hills Industries is a boutique American manufacturer of high-end analog recording equipment, founded in 2001 by Peter Reardon. Originally based in the Shadow Hills neighborhood of Los Angeles — which gave the company its name — the operation later relocated to Texas, where Reardon grew up working as an engineer and producer in the Houston hip-hop scene. The company's gear is hand-built in the USA using discrete solid-state circuitry, with no integrated circuits, and is wrapped in a distinctive matte-black, 1950s military-styled chassis aesthetic that has become a visual signature of the brand.

The product line centers on a small catalog of meticulously engineered outboard pieces aimed at professional tracking, mixing, and mastering studios. The flagship Mastering Compressor is a five-rackspace unit built around a serial two-stage dynamics topology with a switchable output transformer matrix offering Nickel, Iron, and Steel cores, each voicing the signal differently. Other staples include the Dual Vandergraph and Mono Optograph compressors, the GAMA mic preamps, the OptoMax, and the Equinox — a two-rack-space unit that combines two GAMA preamps with thirty channels of analog summing and a mastering-grade monitor section.

The brand operates with minimal marketing and a deliberately small dealer network, relying largely on word of mouth within the professional audio community. Vintage King serves as the exclusive U.S. dealer, and several Shadow Hills designs have been licensed as plugins through Plugin Alliance and Universal Audio. The company's reputation rests on a reputation for built-to-last construction, transformer-driven tonal options, and a track record on high-profile rock, pop, and hip-hop recordings.

Shadow Hills has 10 products cataloged on Equipboard, including Effects Processors, Preamps, and Studio Monitor Management. Their gear is featured by 31 artists, with the strongest followings in Electronic, Pop, and Rock. Notable users include Neeraj Khajanchi, Noah "40" Shebib, and Dave Pensado.