Rainbow Bridge was an experimental/noise/avant label originally from Baltimore, MD, then Chicago, IL. It was run by Angel Marcloid (formerly Justin Marc Lloyd) and primarily released cassettes and CDrs. It ceased operations after it's last release in January 2015. It was originally planned to be a hiatus, but it was decided in 2017 that the label would no longer continue.

Early missing catalog numbers were used for other merchandise, such as stickers, shirts, etc.