Philipp Holzmann AG was a German construction company based in Frankfurt am Main.

[1] Furthermore, the company participated in the construction of the Elbe Tunnel of 1911[1] and the Hindenburgdamm completed in 1927,[1] and also the modernist Riederwald housing estate in Frankfurt.

In 1938, the company had 20,800 employees[4] and contributed to several major building projects like the new Reich Chancellery in Berlin, the Nazi party rally grounds in Nürnberg, the Prora complex as well as the Westwall and numerous sections of the Reichsautobahn.

In World War II, Holzmann constructed large parts of the Atlantic Wall by order of the Organisation Todt.

[5] In the post-war period, the company soon recovered with the rebuilding of Frankfurt, the airport and several public infrastructure projects.