Home Page - POH Architects, Founded in 1971, Pieper O'Brien Herr Architects provides quality Architectural, Interior Design and Graphic Design services on a wide variety of project types throughout the United States and Europe. With a staff of over 40 professionals, we have the expertise and creativity to design a successful project-in both function and aesthetic terms. The firm is based in Atlanta, Georgia with a branch office in Pittsburgh, Pennsylvania and is annually ranked among Atlanta's ‘Top 25 Architectural Firms’.