Top 180 Architecture Firms for 2025

Gensler, Perkins&Will, HKS, Corgan, Populous, and Perkins Eastman top Building Design+Construction's ranking of the nation's largest architecture firms for nonresidential building and multifamily housing work, as reported in BD+C's 2025 Giants 400 Report.

By David Barista, Editorial Director

Sept. 9, 2025
Photo courtesy PGAL
Traphene Hickman Library in Cedar Hill. Photo courtesy PGAL
Designed by PGAL to serve as a “library within a park” in the heart of the Midtown District of Dallas, the 40,000-sf Traphene Hickman Library in Cedar Hill features library, museum,
and event spaces situated near Cedar Hill State Park and Bentle Branch Creek. The facility is four times the size of the existing public library and provides the community access to technology maker spaces, flexible event spaces, community meeting rooms, a social café and stairs, digital media lab, and dedicated children and teen areas. Photo courtesy PGAL

Gensler, Perkins&Will, HKS, Corgan, Populous, and Perkins Eastman top Building Design+Construction's ranking of the nation's largest architecture firms for nonresidential building and multifamily housing work, as reported in BD+C's 2025 Giants 400 Report. Note: This ranking was updated September 10, 2025.

For more AEC discipline rankings, check out:

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

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