Novotny Mähner Assoziierte (N+M, Novotny Mähner & Associates) is an architect company based in Offenbach am Main.
It was founded by Fritz Novotny and Arthur Mähner.
In 2007, the Frankfurt-based N+M architects (formerly Novotny Mähner), specialists in high-rise buildings and the health sector, became an active member of the ATP Group.
In 2009, the office of N+M architects was renamed in ATP N+M Architekten und Ingenieure GmbH.
Many skyscrapers in Frankfurt were planned by the office as well as other structures worldwide.