Brüel & Kjær is a Danish multinational engineering and electronics company headquartered in Nærum, near Copenhagen. It was the largest producer in the world of equipment for acoustic and vibrational measurements.
Brüel & Kjær is a subsidiary of... Wikipedia
Founder: Per Vilhelm Brüel
Founded: November 28, 1942
Headquarters: Nærum, Denmark
Parent organization: Spectris