Radian was a brand name of New Zealander Adrian Hamilton (Ash Custom Works) who has been hand making electric & acoustic guitars and basses since 1992. Adrain Hamilton introduced the Radian brand in 2007 (Radian is an anagram of Adrian) - these were an affordable combination of NZ made bodies, Japan/USA made necks and the good value hardware.

Source: Radian Guitars website (Archived 2013)