Industrial Thermal Services Acquires
On-Site Stress Relieving Services
Industrial Thermal Services Expands National Reach with Acquisition of On-Site Stress Relieving Services
Nederland, TX— May 7, 2025 — Industrial Thermal Services (ITS), a leading provider of industrial heat treatment and specialty services, has acquired On-Site Stress Relieving Services (OSR), a regional expert in post-weld heat treating and stress relieving. Carriage Hill acted as advisor to Industrial Thermal Services on the transaction.
Supported by Amberjack Capital Partners, the acquisition strengthens ITS’s national footprint, adding OSR’s locations in Tulsa, OK; Houston, TX; and Topeka, KS. With this move, ITS expands to 10 nationwide locations and gains additional seasoned team members known for technical precision, 24/7 field service, and a strong safety culture.
Founded in 2003, OSR has built a strong reputation for delivering reliable, high-quality heat treating services in critical applications across the refining, petrochemical, manufacturing, energy, power generation, offshore and infrastructure sectors. The company’s decades of experience and customer-first approach align seamlessly with ITS’s values and mission.
The integration of OSR’s operations strengthens ITS’s ability to deliver responsive, high-quality thermal and specialty solutions to industrial clients nationwide. OSR customers will benefit from a seamless transition and gain access to ITS’s full suite of capabilities and resources. Operating under the ITS brand, the combined organization remains committed to safety, technical excellence, and best-in-class field service reliability.
About Industrial Thermal Services
Industrial Thermal Services is a premier provider of heat treating and specialty field services across the energy and industrial landscape. In addition to heat treating, ITS offers bolting, torquing, cold cutting, and hydrostatic testing. Headquartered in Nederland, TX, ITS is known for its focus on safety, technical precision, and rapid deployment. Learn more at www.its-thermal.com.
About On-Site Stress Relieving Services (OSR)
OSR specializes in on-site post weld heat treating of pressure vessels, welded structures, field fabrications and piping using portable electrical heating and combustion heat treating equipment. The company was incorporated in 2003, and has grown rapidly in a highly competitive industry by providing “Best in Class” services to its clients. The company has three offices located in Tulsa, Oklahoma, Houston, Texas and Topeka, Kansas.
Media Contacts:
For Industrial Thermal Services
Tony Raleigh
Director of Sales
(409) 886-9700
[email protected]
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