Lars Siegfried Karlsen,1910 Census /ref> usually referred to as L. S. Karlsen (14 December 1857 – 1946) was a Norwegian engineer and businessperson.
He was born in
Tromsø
Tromsø (, , ; se, Romsa ; fkv, Tromssa; sv, Tromsö) is a List of municipalities of Norway, municipality in Troms og Finnmark county, Norway. The administrative centre of the municipality is the Tromsø (city), city of Tromsø.
Tromsø lies ...
. He took his education at ''Trondhjem Technical School'' in chemistry and mechanics, and studied for one year at the Royal Saxon Polytechnicum (now
Dresden University of Technology
TU Dresden (for german: Technische Universität Dresden, abbreviated as TUD and often wrongly translated as "Dresden University of Technology") is a public research university, the largest institute of higher education in the city of Dresden, th ...
). He was hired as a manager of Sundnæs Brænderi. In 1888 he was hired as an inspector in the insurance company
Forsikringsselskapet Norden
Forsikringsselskapet Norden was a general insurance company based in Norway.
It was founded as ''Brandforsikringsselskabet Norden'' on 4 April 1867, and began operating on 2 September the same year. Its first offices were located in ''Karl Johans ...
. From 1896 to 1897 he was a state controller of liquor and malt production, but from July 1897 to 1933 he was the chief executive of Forsikringsselskapet Norden.
In 1916 he entered the first board of the Scandinavian American Assurance Corporation. In 1937 he received an honorary distinction from the
Norwegian Polytechnic Society The Polytechnic Society ( no, Polyteknisk Forening) is a Norwegian member network that inspires a science-based and sustainable development, through technology and interdisciplinary partnerships. It was founded in 1852 in Christiania (now: Oslo). Th ...