He is best known for his work for the French brand Maison Jansen, for whom he designed furniture in chromed steel in the 1960s. He has also collaborated with brands such as Knoll, Steiner and Artifort.
His creations are characterized by a refined aesthetic, marked by the use of modern materials such as metal, glass and leather. In particular, he created armchairs and sofas with simple, elegant lines, which enjoyed great success in the 1970s.
Guy Lefèvre has received numerous awards and distinctions throughout his career, including the Grand Prix National de la Création Industrielle in 1982. He is considered one of the great French designers of the second half of the 20th century.