Egon Eiermann (September 29th, 1904 - July 20th, 1970) studied architecture under Hans Poelzig at the Technischen Hochschule in Berlin-Charlottenburg between 1923 and 1927. In Hamburg was employed as an architect in the office of Karstadt AG in 1928/29 and in Berlin at BEWAG (Berliner Elektrizitatswerke AG) in 1930. From 1931 to 1945 he worked in Berlin as a self-employed architect. In 1945 he moved his practice to Mosbach im Odenwald, later (in 1946) founding a joint practice with the architect Robert Hilgers and moving the practice to Karlsruhe. In 1947 was appointed to a chair of architecture at the Technische Hochschule in Karlsruhe, where he would teach until his death in 1970. In 1951 was a co-founder of the German Council for Design. In 1962 Egon Eiermann, Paul Baumgarten, and Sep Ruf belonged to the planning commission for the Parliament and Bundesrat building in Bonn.

The most important architecture projects include the Ciba AG factory building in Wehr/Baden (1958), the Gedachtnis-Kirche in Berlin (1957-1963), and the highrise for members of the German Parliament in Bonn (1965-1969). The German embassy in Washington was built after his plans (1962-1964). With Sep Ruf he designed eight steel and glass pavilions as the German contribution to the 1958 World Exposition in Brussels.

He also designed the IBM headquarters building in Stuttgart and the German Olivetti headquarters in Frankfurt am Main, both of which were not completed until 1972, after his death. The facade he designed after the war for the Horten department store chain did not earn universal acclaim at the outset. He also designed furniture and interiors for his buildings. His most successful furniture design was the "E 10" (1954) basket chair, the prototype of which he had designed back in 1948 for the "Wie wohnen?" exhibition in Karlsruhe. Equally popular is the "SE 18" folding chair Eiermann designed for Wilde & Spieth in Esslingen.