 In 1945, Holger Nielsen became a partner in the firm, for which he worked until his death in 1978.Despite the ongoing world war, Brüel managed to navigate his company and career to further success.In 1948, Brüel & Kjær bought their first property, a wooden army barracks in Nærum, 15 km north of Copenhagen, which are the premises where the company's headquarter is still located today.