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Ennead Architects is an internationally recognized architecture firm renowned for its innovative and sustainable designs across a wide range of building types, including cultural, educational, scientific, commercial, and civic projects. With a legacy rooted in the Polshek Partnership, founded in 1963, the firm evolved into Ennead Architects in 2010. They are committed to creating architecture that shapes the public realm and enriches the human experience, emphasizing collaboration, research, and contextual sensitivity in their approach. Their portfolio showcases a dedication to design excellence and a profound impact on communities and institutions worldwide.
Serves as the primary design studio, administrative center, and hub for client engagement and project management for North American and international projects.
Located in the iconic 1 World Trade Center, offering panoramic views and a modern, collaborative workspace designed to foster creativity and innovation among its architectural teams.
Ennead fosters a collaborative and intellectually stimulating work environment. The culture emphasizes design excellence, critical thinking, mentorship, and a commitment to creating meaningful public spaces. It's known for its studio-like atmosphere encouraging open dialogue and shared learning.
The New York headquarters is the historic and primary hub of the firm, driving its design philosophy and managing its most significant projects globally. Its location in a global center for architecture and design reinforces its international standing.
Ennead Architects supports a global practice from its main office in New York City and a dedicated office in Shanghai. They undertake projects across North America, Asia, Europe, and the Middle East, providing comprehensive architectural design, master planning, and interior design services. Their international reach is facilitated by collaborations with local partners and a deep understanding of diverse cultural and environmental contexts.
1 World Trade Center, 48th Floor
New York
NY
USA
Address: Unit 302, Bldg 1, 751 Liyang Road, Hongkou District, Shanghai, China 200080
To support and expand the firm's architectural practice in the rapidly developing Asian market, focusing on cultural, educational, and mixed-use projects in the region.
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As of April 2025, Ennead Architects' leadership includes:
Ennead Architects has been backed by several prominent investors over the years, including:
In the past 12 months, Ennead Architects announced significant internal promotions, elevating three individuals to Principal roles in February 2024. These promotions reflect the firm's commitment to leadership development and recognizing talent from within. No major external executive hires or high-level departures at the Partner level have been publicly announced during this period.
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Ennead Architects primarily uses the email format combining the first initial of an employee's first name with their full last name, followed by '@ennead.com'. This is a common and highly effective convention in professional service firms.
flast@ennead.com
Format
trossant@ennead.com
Example
90%
Success rate
Archinect • February 27, 2024
Ennead Architects has announced the promotion of three individuals to Principal: Christina Ciardullo, Estrella Diez, and Alex O’Briant. Additionally, seven individuals were promoted to Associate Principal, and five to Associate, strengthening the firm's leadership....more
RIBA Architecture • June 22, 2023
The Shanghai Astronomy Museum, designed by Ennead Architects, has been recognized with a RIBA International Award for Excellence in 2023, lauded for its innovative design and significant cultural impact....more
University of Oregon News • May 15, 2024
Phase 2 of the University of Oregon's Phil and Penny Knight Campus for Accelerating Scientific Impact, featuring design by Ennead Architects in collaboration with Bora Architecture & Interiors, recently celebrated its topping out, marking a significant construction milestone for the research facility....more
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