Per Helmer (16 July 1897 – 9 June 1966) was a Norwegian businessperson.
He was born in Kristiania, as a son of barrister Jan Groos Helmer and Minna, née Heiberg. In January 1922 he married Rikke Krag (1900–1947), a daughter of wholesaler Hans Peter Fyhn Krag.[1] [2] This marriage produced two children, Rikke and Jan Groos, but was dissolved in 1940. In 1945 he married violinist Sigrid Due-Tønnessen, with whom he also had two children Siri and Anne.[3]
Helmer finished his secondary education at Aars og Voss in 1916 and studied timber and trade in Sweden, Finland and England. He was employed in his father-in-law's company Krag & Co. from 1922 to 1929, when he became chief executive officer of Wilhelm Jordan.[4] This industrial company had been founded in 1837, and took up toothbrush manufacturing in 1927, developing into an internationally recognized brand.[5]
Helmer was a board member of Krag Maskin Fabrik from 1926, Wilhelm Jordan from 1929, Krag & Co. from 1931, Essvik from 1934, Granvik from 1934, and supervisory council member of Forsikringsselskapet Poseidon from 1930.[4]