Rasmussen studied archaeology under Peter Glob at Aarhus University, where she participated in the Danish archaeological expedition to Bahrain. After obtaining her master's degree, she became an inspector first at the National Museum of Denmark and later Esbjerg Museum in Jutland. In 1986, she left the museum sector to work at the fine art auction house Bruun Rasmussen Kunstauktioner.[2]
Rasmussen's father was Villum Kann Rasmussen, the founder of Velux and other Danish window manufacturing companies. She served as the director and chair of the board of the Velux Foundation, the nonprofit foundation established by her father, from 1981 until 2007.[2] She also wrote a biography of her father, Ét forsøg er bedre end tusind ekspertantagelser: V. Kann Rasmussen & Co (1991).[3]
She was appointed a Knight (Ridder) of the Order of the Dannebrog in 2002.[4]
