Top 16 Most Well-Known Architectural Firms in the US

Firm NameWebsite
Perkins EastmanVisit Website
GenslerVisit Website
HKS, Inc.Visit Website
KPMB ArchitectsVisit Website
AedasVisit Website
HDRVisit Website
StantecVisit Website
Nikken SekkeiVisit Website
SmithGroupVisit Website
ArcadisVisit Website
PopulousVisit Website
SwecoVisit Website
Bjarke Ingels Group (BIG)Visit Website
Elizabeth Roberts ArchitectsVisit Website
SOM (Skidmore, Owings & Merrill)Visit Website
Zaha Hadid Architects (ZHA)Visit Website

Top Architecture Firms Globally

Firm NameWebsite
Perkins EastmanVisit Website
GenslerVisit Website
HKS, Inc.Visit Website
KPMB ArchitectsVisit Website
AedasVisit Website
HDRVisit Website
StantecVisit Website
Nikken SekkeiVisit Website
SmithGroupVisit Website
ArcadisVisit Website
PopulousVisit Website
SwecoVisit Website
Bjarke Ingels Group (BIG)Visit Website
Elizabeth Roberts ArchitectsVisit Website
SOM (Skidmore, Owings & Merrill)Visit Website
Zaha Hadid Architects (ZHA)Visit Website
GenslerVisit Website
ArcadisVisit Website
HDR (Henningson, Durham & Richardson)Visit Website
SwecoVisit Website
Nikken SekkeiVisit Website
Heerim Architects & PlannersVisit Website
DLR GroupVisit Website
CannonDesignVisit Website
ATP Architects EngineersVisit Website
Surbana JurongVisit Website
GMP ArchitektenVisit Website
Nihon SekkeiVisit Website
HPP ArchitektenVisit Website
Foster + PartnersVisit Website
HOKVisit Website
DA GroupVisit Website
BDPVisit Website
ZGF ArchitectsVisit Website
Kume SekkeiVisit Website

Architecture firms play a major role in shaping cities, infrastructure, and modern design trends around the world. From large international studios designing iconic skyscrapers to specialized firms creating innovative cultural and residential spaces, architectural companies influence how people live, work, and experience the built environment.

The United States is home to many of the world’s most influential architectural firms. Companies such as Gensler, SOM, Perkins Eastman, and HKS are known for designing airports, stadiums, hospitals, and commercial buildings across multiple continents. These firms combine engineering expertise, sustainable design practices, and cutting-edge technology to deliver large-scale projects for global clients.

modern architectural skyscrapers designed by leading global architecture firms
Modern architectural design by leading global architecture firms.

Below is a curated list of some of the most well-known architectural firms in the United States and globally. These companies are recognized for their innovation, sustainability initiatives, and landmark projects that define skylines in major cities. Whether designing large urban developments, cultural landmarks, or high-performance commercial spaces, these architecture firms continue to shape the future of the built environment.

Leading Architectural Firms in the United States

The following firms are widely recognized across the U.S. architecture industry. Many of them consistently rank among the largest design firms worldwide and are known for projects ranging from corporate headquarters and stadiums to hospitals and educational campuses.

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