Top 40 Transit Facility Architecture Firms for 2025

Kohn Pedersen Fox (KPF), Perkins&Will, HDR, Arcadis North America, Stantec, Skidmore, Owings & Merrill, Gensler, and HNTB top Building Design+Construction's ranking of the nation's largest transit facility architecture and architecture/engineering (AE) firms for 2025, as reported in BD+C's 2025 Giants 400 Report.
Source David Barista, Editorial Director
March 16, 2026
Photo by CHUTTERSNAP on Unsplash
Photo by CHUTTERSNAP on Unsplash

Photo by CHUTTERSNAP on Unsplash

Kohn Pedersen Fox (KPF), Perkins&Will, HDR, Arcadis North America, Stantec, Skidmore, Owings & Merrill, Gensler, and HNTB top Building Design+Construction's ranking of the nation's largest transit facility architecture and architecture/engineering (AE) firms for 2025, as reported in BD+C's 2025 Giants 400 Report.

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

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