Thornton Tomasetti
Thornton Tomasetti is a global engineering design and analysis firm founded in 1956 and headquartered in New York City. With over 1,500 employees, the company specializes in structural engineering and architectural collaboration, serving clients on projects of various sizes across more than 50 countries. It operates multiple offices in the United States, Asia-Pacific, Europe, and the Middle East. The firm offers a comprehensive range of services, including structural engineering, building performance consulting, construction support, and forensic engineering. Thornton Tomasetti is recognized for its innovative structural systems and has been involved in landmark projects, such as Taipei 101 and the assessment of 130 Liberty Street after the 9/11 attacks. The company emphasizes innovation through its CORE studio and CORE Lab, focusing on computational modeling and technology development to enhance design and construction efficiency. Its diverse client base includes architects, developers, government agencies, and clients in various sectors, making it a preferred partner for engineering solutions worldwide.
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Headcount trend
Thornton Tomasetti went from 1,288 employees in Jul 2023 to 1,555 in Jun 2025. Jan to Jun 2025: 162 people joined, 33 left.
Headcount data through Jun 2025
Org structure
Headcount by department
Hiring now
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All salaries24 salary profiles in the US
Most reported roles
H-1B sponsorship
The department split adds up all the years listed above. FY2026 alone: 30 filings.
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Thornton Tomasetti FAQ
How many employees does Thornton Tomasetti have?
Thornton Tomasetti has about 1,555 employees, up 4.8% over the 3 months to Jun 2025.
Does Thornton Tomasetti sponsor H1B visas?
Yes. Thornton Tomasetti filed 30 H1B (LCA) applications in FY2026, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.
What is Thornton Tomasetti's revenue per employee?
Thornton Tomasetti makes about $218K in revenue per employee, based on $339M annual revenue and 1,555 employees.
How much does Thornton Tomasetti pay?
6figr has 24 salary profiles for Thornton Tomasetti in the US and 2 in India, with pay broken down by role, level, gender and ethnicity on the Thornton Tomasetti salaries page. See Thornton Tomasetti salaries in the US
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.