Top 200 Office Building Architecture Firms for 2025

Gensler, Stantec, Interior Architects, Perkins&Will, HOK, Skidmore, Owings & Merrill, Page, and HGA top Building Design+Construction's ranking of the nation's largest office building sector architecture and architecture/engineering (AE) firms for 2025, as reported in Building Design+Construction's 2025 Giants 400 Report. Note: This ranking includes revenue for all office building work, including core and shell projects and workplace/interior fitouts. 

Source: Building Design+Construction's 2025 Giants 400 Report