Born in Australia, Geoffrey Harcourt moved to the United Kingdom to study at the Royal College of Art in London. He gained international prominence in the 1960s through his long-standing collaboration with the Dutch furniture company Artifort, where his designs became synonymous with the era's sleek, modernist aesthetic.

Harcourt is celebrated for his focus on ergonomic comfort and sculptural forms, particularly in his lounge chairs and office seating. His work often utilized innovative materials and techniques, blending functional utility with a distinctively minimalist visual language that defined corporate and domestic interiors throughout the late 20th century.

His legacy continues to be recognized within the context of mid-century design history, often appearing alongside contemporaries in major museum surveys of industrial modernism. His pieces remain highly sought after by collectors and are frequently featured in exhibitions documenting the evolution of 20th-century furniture design.