Audiosiege Engineering is an independent audio and music mastering studio located in the heart of the Portland, Oregon independent music scene. Founded by Brad Boatright, Audiosiege offers professional, custom audio mastering and production to recording artists locally and worldwide. With roots that extend deep into the Hardcore, Punk, Metal, and Alternative music scenes, Audiosiege employs a perfect combination of experience, skill, and knowledge with the finest in both analog and digital audio processing.

Services offered include mastering recordings for CD, vinyl, and digital release (Including "Mastered for iTunes"/MFiT), as well as audio restoration and remastering.