HDR, CannonDesign, SmithGroup, Perkins&Will, Gensler, Stantec, MOREgroup, Array Architects, and Perkins Eastman top Building Design+Construction's ranking of the nation's largest outpatient facility architecture and architecture engineering (AE) firms for 2026, as reported in BD+C's 2026 Giants 400 Report.

Source: Building Design+Construction's 2026 Giants 400 Report