Muhlenberg Greene Architects, Ltd. is a full-service architecture firm, in continuous operation since 1920, and was one of the predominant architecture/engineering firms in Reading, Pennsylvania, during the first half of the 20th century. Muhlenberg Greene Architects was originally established in 1920 as Frederick A. Muhlenberg, Registered Architect. Since its founding, Muhlenberg Greene Architects lists over 3,500 commissions to its credit, including many landmarks in the city of Reading, such as Berks Heim, the Reading Medical Arts Building, and Stokesay Castle.