Thos. Joh. Heftye & Søn was a Norwegian bank company. It was one of the first commercial banks in Norway. Based in Christiania, it was founded in 1818[1] by Thomas Johannessen Heftye (1767–1827), an immigrant from Switzerland.[2] The bank remained in the family in the next generations, and both Henrik Heftye and Thomas Johannessen Heftye worked there.