How many employees work at Thornton Tomasetti?
Thornton Tomasetti, Inc. has 2,472 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 14.3%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025
About Thornton Tomasetti
We apply scientific and engineering principles to solve the world’s challenges — starting with yours. Whether we’re focusing on the design, construction and performance of buildings or expanding into new disciplines, we never limit ourselves, applying our expertise to all types of projects across a range of industries.
As of December 2025
Thornton Tomasetti
workforce metrics
Headcount
2.5k
Avg. Salary
$98.4k
Tenure
4.3yr
Growth Rate
14.3%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of Thornton Tomasetti annual worldwide employee count from 2023 to 2025.
- Thornton Tomasetti total number of employees in 2025 was 2,465, a 14.3% increase from 2024.
- Thornton Tomasetti total number of employees in 2024 was 2,136, a 7.6% increase from 2023.
- Thornton Tomasetti total number of employees in 2023 was 1,980, a 6.7% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of Thornton Tomasetti annual active job postings from 2023 to 2025.
- Thornton Tomasetti active job postings in 2025 was 209, a 24.0% decline from 2024.
- Thornton Tomasetti active job postings in 2024 was 266, a 24.0% increase from 2023.
- Thornton Tomasetti active job postings in 2023 was 209, a 6.9% decline from 2022.
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Employee Sentiment
Sentiment Topics
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