Stage Ninja is an Indianapolis, Indiana-based manufacturer of retractable cable reels and professional mounting solutions, founded in 2005. The company designs and builds its products in the USA, serving industries spanning live music, broadcast, aerospace, medical, and military applications. Their retractable cable reels cover a wide range of signal types — instrument, XLR, speaker, power, DMX, and data — and feature Neutrik connectors on their audio lines. Notable product series include Performance Series Pro Reels, Stainless Steel Pro Reels, and application-specific reels for medical and aviation environments. The company also offers a Custom Shop for tailored cable reel solutions.

Alongside their cable reels, Stage Ninja produces the Ninja Clamps line — a series of heavy-duty mounting accessories for microphones, smartphones, tablets, cameras, and action cameras. These feature flexible gooseneck positioning arms and industrial-strength clamp or magnet bases for securing devices in tight or unconventional spots on stage, in studios, or on location. Stage Ninja is a NAMM member and Neutrik partner, and their products are carried by major pro audio retailers including Guitar Center, B&H Photo, Full Compass, Markertek, and Sam Ash.

Stage Ninja has 1 product cataloged on Equipboard, including Instrument Cables. Their gear is featured by 1 artist, with the strongest followings in Rock. Notable users include Phillip McKnight.