12197 verified suppliers listed

Best NDT Companies in Ohio

Ohio is one of the most industrially diverse states for non-destructive testing, with a large manufacturing base, a significant aerospace and defense supply chain, and multiple nuclear and fossil power generation facilities that require ongoing in-service inspection. NDT companies in Ohio serve the automotive and heavy manufacturing corridor from Cleveland to Columbus and Dayton, the aerospace and defense supply chains around Dayton (Wright-Patterson AFB, GE Aviation), and the numerous fossil and nuclear power plants operating under ASME Section XI and NRC requirements. The state's geographic position at the center of the Midwest manufacturing belt makes Ohio NDT companies accessible to the broader Great Lakes industrial region.

Why these suppliers?

  • Ohio's manufacturing and automotive base generates consistent demand for weld inspection, casting and forging evaluation, and in-process NDT for automotive powertrain, structural components, and heavy equipment — giving Ohio NDT companies deep production inspection experience.
  • The GE Aviation and defense supply chain in the Dayton area supports Nadcap-accredited NDT companies with aerospace-grade capabilities for flight hardware inspection — a higher tier of capability than general industrial providers.
  • Ohio's nuclear fleet (Davis-Besse, Perry) and numerous fossil plants create ongoing demand for ASME Section XI in-service inspection, turbine NDT, and high-energy piping assessment from companies qualified for power generation work.

800 verified suppliers found

Streetsboro, Ohio5.0(2)

Spectrum Machine has several state-of-the-art bronze continuous casting machines. We also have all available mill sizes and a large variety of non-standard bronze barstock sizes.

+1 330-626-3666Website
Springfield, Ohio5.0(2)

Automotive Machine Shop

+1 937-322-7500Website
Twinsburg, Ohio

9100 (9001:2015) certified. Certification body: DNV Business Assurance USA, Inc.. Structure: Single Site.

Dayton, Ohio

Stafford Gage & Tool, INC. operating since 1947. Located in Dayton, Ohio. Specializing in CNC precision machining.

+1 937-277-9944Website
Berea, Ohio5.0(1)

Made-to-order parts, on time and up to spec. At Standby Screw, we’ve dedicated ourselves to producing the precise, custom components you need. Learn more.

+1 440-243-8200Website
Canfield, Ohio

At Steel Valley Machining, we offer a wide range of machining services, including 3 axis CNC milling, 2 and 3 axis CNC turning, design/reverse engineering,

+1 330-717-9546Website
Xenia, Ohio5.0(1)

We focus on CNC machining and solid model part design. We have CNC turning and milling machines along with the latest in high technology CAD, and CAD-CAM software.

+1 937-376-0322Website
Kent, Ohio4.3(6)

Steinert Industries is a full-service machine shop producing high-quality glassblowing and lampworking tools, tire inflators and mounters, truss displays and general machining projects.

+1 330-678-0028Website
Sidney, Ohio5.0(1)

Stolle Solutions allow canmakers to promote and enhance that brand experience — thousands of times a minute, 24 hours a day, every single day.

+1 937-497-5400Website

Frequently Asked Questions

What industries drive NDT demand in Ohio?
Automotive and heavy manufacturing is the largest sector — transmission components, engine blocks, castings, and forgings for Honda, GM, Ford, and their Tier 1 suppliers create ongoing weld and manufacturing NDT demand. Aerospace and defense (GE Aviation in Cincinnati, Wright-Patterson and defense contractors in Dayton) requires Nadcap-accredited and AS9100-integrated NDT capability. Power generation (multiple nuclear and fossil plants) requires ASME Section XI inspection. Structural and bridge inspection serves Ohio's aging infrastructure across its highway and railway networks.
Are there Nadcap-accredited NDT companies in Ohio?
Yes. Ohio's aerospace and defense supply chain — particularly in the Cincinnati and Dayton corridors — supports multiple Nadcap-accredited NDT providers holding scope in RT, UT, MT, PT, and ET. The Performance Review Institute (PRI) database at pri-network.com lists currently accredited Ohio companies searchable by commodity and location. Verify current accreditation status directly in the PRI database rather than relying on supplier-provided certificates, as Nadcap accreditations are time-limited and must be renewed.
What qualifications should an Ohio NDT company have for power plant work?
For fossil plant work (boiler tube inspection, turbine NDT, high-energy piping), ASNT Level II/III certification in the applicable methods and familiarity with ASME Section I and B31.1 codes are baseline requirements. For nuclear plant in-service inspection under ASME Section XI, UT personnel must hold PDI (Performance Demonstration Initiative) Appendix VIII qualifications. The company must maintain an ASME NQA-1 quality program and be pre-qualified by the utility's vendor qualification program. Ohio's nuclear utilities (FirstEnergy, Energy Harbor) maintain their own vendor qualification databases that NDT companies must complete before being awarded ISI scope.

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