Vesper Guitars are custom made by luthier Neal Van Slett in Germantown, Wisconsin.  Vesper Guitars produce acoustic guitars, acoustic bass guitars, electric guitars, electric bass guitars, and ukeleles. Neal worked for many years in tool-making & wood working industries before he began making guitars in 1999 - his first one was made as a graduation present for his son.

Source: Vesper Guitars website (2 June 2021)