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Thornton Tomasetti is an international scientific and engineering consulting firm renowned for its expertise in structural engineering, building performance, forensics, protective design, and applied science. They partner with clients across various industries, including architecture, construction, real estate, and government, to solve complex challenges and deliver innovative solutions for buildings, infrastructure, and a sustainable future. Their services span the entire project lifecycle, from conceptual design and analysis to construction administration, condition assessment, and forensic investigation.
Serves as the central hub for global operations, strategic decision-making, executive leadership, and coordination of its diverse engineering and consulting services worldwide.
Situated in the historic New York Life Building, known for its gilded pyramid roof. The office interior is likely designed to promote collaboration and innovation among its multidisciplinary teams.
The HQ fosters a dynamic, collaborative, and intellectually stimulating environment. Employees are encouraged to innovate and contribute to cutting-edge projects, with a strong emphasis on professional development and knowledge sharing.
Its location in New York City places Thornton Tomasetti at the epicenter of architectural and engineering innovation, facilitating close collaboration with leading architects, developers, and industry partners.
Thornton Tomasetti supports a wide array of functions globally through its network of over 50 offices. These include structural engineering, façade engineering, construction engineering, forensic analysis, condition assessment, sustainability consulting, protective design, transportation, and applied science. Their international offices collaborate on projects, share expertise, and provide localized services to clients across diverse sectors including commercial, residential, cultural, transportation, energy, and government.
51 Madison Avenue
New York
NY
USA
Address: The Stowaway, 32 Westland Place, London, N1 7LP, UK
Provides localized expertise and support to clients in the United Kingdom and continental Europe, adapting global best practices to regional standards and market needs.
Address: 330 North Wabash Avenue, Suite 1500, Chicago, IL 60611, USA
Supports the architectural and development community in Chicago and the broader Midwest region, known for its significant architectural heritage and ongoing development.
Address: 700 S. Flower Street, Suite 2200, Los Angeles, CA 90017, USA
Addresses the unique challenges of the California market, including seismic risks and sustainability goals, while serving a diverse client base in entertainment, commercial, and institutional sectors.
Address: Office 209, Building 4, Emaar Business Park, Dubai, UAE
Caters to the rapidly growing Middle Eastern market, providing expertise for ambitious and iconic construction projects in the region.
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As of April 2025, Thornton Tomasetti' leadership includes:
Thornton Tomasetti has been backed by several prominent investors over the years, including:
As a privately held, employee-owned firm, Thornton Tomasetti's executive changes are typically managed internally and may not always be widely publicized unless they represent very senior leadership transitions. Recent public records do not indicate major C-suite hires or exits within the last 12 months. Leadership stability is a characteristic of the firm.
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Thornton Tomasetti primarily uses the email format combining the first initial of an employee's first name followed by their last name.
F[Last]@thorntontomasetti.com (e.g., JSmith@thorntontomasetti.com)
Format
RLejano@thorntontomasetti.com
Example
90%
Success rate
Thornton Tomasetti News • March 7, 2024
Amy Dalrymple, a vice president and leader in Thornton Tomasetti’s Resilience practice, has been named a fellow by the American Society of Civil Engineers (ASCE). This recognition highlights her significant contributions to civil engineering and community resilience....more
Thornton Tomasetti News • February 27, 2024
Thornton Tomasetti announced the promotion of three key individuals to Senior Principal and eleven to Principal. These promotions recognize their leadership, expertise, and contributions to the firm's success and growth across various practices and regions....more
Thornton Tomasetti News • October 26, 2023
CORE studio, Thornton Tomasetti’s innovation lab, announced the winners of its second annual AEC Tech Challenge. The competition aims to foster innovation in building design and construction technology, showcasing cutting-edge solutions from industry professionals and students....more
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