Which 2017 merger created the world's largest architecture firm by number of architects employed, bringing together two design powerhouses with complementary strengths in commercial and transportation projects?

The architecture industry has seen significant mergers and acquisitions over the years, reshaping the landscape of global design firms. These consolidations have created powerhouses that influence skylines worldwide. Test your knowledge about one of the most significant architectural firm mergers in recent history that dramatically changed the industry's competitive landscape and brought together complementary design philosophies.

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Gensler and HOK
Foster + Partners and Zaha Hadid Architects
Perkins&Will and Schmidt Hammer Lassen
IBI Group and Arcadis (forming Arcadis IBI Group)