Andreas Hansen trained at Ringe becoming a skilled cabinet maker in 1956. He then attended the Kunsthandvrerkerskolen (The School of Arts and Crafts, Denmark ) Graduating in 1962.
He continued his studies at the Royal Academy of Fine Arts, Denmark 1962-1963. Undertaking study tours to Florence, Rome and Venice. During this period he worked for the architects Mogens Koch and Vilhelm Wohlert.
In 1968 up to 1988 he returned to the Royal Academy of Fine Arts, as a teacher, a role he also undertook between 1970 - 1973 at Denmark's Design School. In 1974 he went on a study tour of Egypt.
He has had his own company since 1963 designing furniture, lighting including several designs for Le Klint.