Which prestigious architectural firm's logo famously incorporates the golden ratio in its design, reflecting the same mathematical principles they use in their building designs?

Famous architectural firms often incorporate design principles into their brand identities. The logo of a renowned architectural firm might use the golden ratio (approximately 1:1.618) to create visual harmony and communicate their design philosophy. This mathematical proportion has been used in architecture for centuries, from the Parthenon to modern skyscrapers. How well do you recognize this principle in architectural branding?

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Foster + Partners
Zaha Hadid Architects
Bjarke Ingels Group (BIG)
Gensler