Best NDT Companies in Illinois
Illinois has one of the largest nuclear power fleets in the United States — operated by Exelon (now Constellation Energy) — making the state a major market for ASME Section XI in-service inspection, PDI-qualified UT services, and NQA-1–compliant inspection organizations. Chicago and the surrounding industrial corridor also support significant manufacturing NDT demand, particularly for the food and beverage equipment, construction machinery, and transportation equipment sectors. Illinois's extensive rail and highway infrastructure, including the Chicago area's critical role as the nation's railway hub, creates ongoing demand for structural steel weld inspection, bridge NDT, and rail inspection services.
Why these suppliers?
- ✓Illinois's nuclear fleet — the largest in the U.S. at eleven operating reactors — creates the deepest concentration of nuclear-qualified NDT companies, PDI-qualified technicians, and NQA-1 inspection service organizations of any state outside the Southeast.
- ✓Chicago's manufacturing base — from food equipment to railway cars to construction machinery — provides NDT companies with broad manufacturing inspection experience and ISO 9001–integrated quality programs.
- ✓Illinois NDT companies serving Chicago's transportation and infrastructure sector have specialized experience in rail inspection (UT axle and wheel inspection, rail testing), bridge structural assessment, and high-density urban access conditions.
449 verified suppliers found
Effingham Machining & Assembly Components spans 180,000 square feet and employs 200 people. EMAC machines and assembles suspension components and brackets for the automotive industry.
9120 (9001:2015) certified. Certification body: Perry Johnson Registrars, Inc.. Structure: Single Site.
EPP Corporation provides plastic CNC machining, plastic parts and plastic fabricating. We are ISO registered, and serve many industries with our high-quality products from our plastics only facility. Since 1976, we have been serving various industries. For more info, see our website!
9100 (9001:2015) certified. Certification body: Amtivo (USA), Inc.. Structure: Several Sites.
9100 (9001:2015) certified. Certification body: Amtivo (USA), Inc.. Structure: Several Sites.
Ermaksan is a leading technology company that leads the sheet metal processing machinery sector with its strong R&D.
CNC machining services that come with creativeness, knowledge, attention to detail, accuracy and a commitment to high standards.
9100 (9001:2015) certified. Certification body: Smithers Quality Assessments, Inc.. Structure: Campus.
Exact Machine Company in Rockford, Illinois is a precision metalworking / machining service specializing in high precision boring and milling of large components and gearboxes for the machine tool and heavy vehicle equipment industries.
9100 (9001:2015) certified. Certification body: DEKRA Certification, Inc.. Structure: Multi-Site.