Portland, OR, USA

Unter Null (German for 'Below Zero') is an Aggrotech music project formed in 1998 by the then 17 year old Erica Dunham, in Seattle, USA. As of 2011[update], she is based in Portland, Oregon. Founder Erica Dunham has a history of musical education with training in the Classical Piano, Cello and Guitar; however, she describes her primary trade as being a chef on her online food store 'Unterbites' which she runs alone.

Unter Null was founded initially as a powernoise project influenced by a number of similar prominent artists, including Noisex, Converter and P.A.L.

Her first, self-titled, album was released in 2001. In 2002, she was picked up by Leech and NTT/Annihilvs Records, and released her second, web-exclusive album Neocide.

Three years later, in 2005, she signed with Alfa Matrix. Since then, she has since released a large number of EPs and albums, as well as appearing on compilation albums with other artists. Unter Null have also performed multiple live shows around the world, with a short US and European tour in 2005 and a lengthy European Tour in 2006.