Therma Corp. has 1,987 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 9.5%.
Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025
Therma is part of Legence, a Blackstone portfolio company, specially created to be an Energy Transition Accelerator™. Our team radically improves the performance of the built environment by maximizing energy efficiency through engineering, constructing, installing and maintaining mechanical and plumbing systems. We’re fostering the future by championing building efficiency today. As a full-service design-build specialty mechanical services provider, Therma focuses on complex HVAC systems and high purity process piping and controls for cleanrooms, laboratories, and high-tech manufacturing facilities. We specialize in engineering, building information modeling, energy modeling, fabrication, installation, and maintenance services for general contractors, construction managers, and building owners in the technology, biopharmaceutical, data center and semiconductor, and food and beverage industries to fulfill their needs.
As of September 2025
Therma
workforce metrics
Headcount
2k
Avg. Salary
$97.7k
Tenure
4.8yr
Growth Rate
9.5%
Hiring Rate
Attrition Rate
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Interactive chart of Therma annual worldwide employee count from 2023 to 2025.
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Interactive chart of Therma annual active job postings from 2023 to 2025.
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