Rattlesnake Cable Company is a boutique cable maker based in Missoula, Montana, founded by Hank Donovan, who began building cables in 2012 after experimenting with electronics, pedal building, and instrument repair. The company grew from a personal project into a family-run business, with Hank's wife Amy joining the operation as demand for the hand-assembled cables expanded.

The company is best known for its Standard Rattlesnake instrument cables, built around an oxygen-free bare copper (OFBC) low-capacitance core with 95% braided copper shielding and a cloth-style outer jacket available in patterns like Dirty Tweed. The cables are milled in the United States and hand-assembled to order in Montana, with Neutrik, Switchcraft, and Rattlesnake's own RCC Star Pancake plugs used as terminations. Beyond standard guitar cables, the catalog includes Snake Head cables, Flex patch cables, speaker cables, XLR and microphone cables, MIDI cables, and TRS variants.

Rattlesnake also produces signal-routing accessories such as line buffers, TRS-to-dual-mono splitters, junction boxes, audio probes, and custom cable looms for pedalboards and rack rigs. The brand emphasizes a made-to-order, customer-direct workflow, with custom lengths, colors, and configurations available alongside its stock catalog.

Rattlesnake Cable Co has 5 products cataloged on Equipboard, including Instrument Cables. Their gear is featured by 1 artist, with the strongest followings in Rock. Notable users include Damian Wolf.