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Last updated: April 2026
TS

Testing Service Corporation

Carol Stream, IL
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Testing Service Corporation provides construction materials engineering and testing, including welding and structural-steel inspection. Its NDT technicians are certified to SNT-TC-1A for UT, MT, and PT. The company was organized in 1954 and serves construction projects in Illinois, Indiana, and Wisconsin.

ultrasonic welding inspectionmagnetic particle inspectiondye penetrant inspectionvisual welding inspectionstructural steel inspectionwelder certification testingconcrete and aggregate testinghot mix asphalt testing
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Credentials & Experience

Years of Experience
72+
Certifications
  • Registered Professional Engineers
  • Illinois Department of Transportation (IDOT) certified
  • NDT Technicians Certified to SNT-TC-1A for UT, MT, and PT

Coverage Area

Illinois, Indiana, or Wisconsin

Additional Details

NDT Methods Offered
Ultrasonic Testing (UT)Magnetic Particle (MT)Liquid Penetrant (PT)Visual Testing (VT)
Industries Served
Power GenerationInfrastructure (Bridges/Pipelines)
Years in Business
72
Company Size (Employees)
11-50

Location

457 Gundersen Drive, Carol Stream, Illinois 60188, IL

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