Perkins&Will, Quinn Evans, Gensler, SmithGroup, HGA, HKS, Arcadis North America, CannonDesign, and NBBJ top Building Design+Construction's ranking of the nation's largest museum and gallery 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