Jørgen Kastholm was born in 1931. Following a period of study in the USA, in 1953 he served his apprenticeship as a smith and continued to study at the School of Interior Design. On completing his studies he was employed by Fritz Hansen, later joining the architect's office. Kastholm was an active architect until his death in June 2007.

Fabricius & Kastholm met each other at the School of Interior design, subsequently formed a partnership and together founded an architect's office in 1961. They specialised in designing furniture and single-family housing. Although they have individually created some interesting designs, it is in partnership that they have achieved their greatest successes. Their furniture is elegant, refined, and designed with an amazing sense of functionality, detail and quality.