12197 verified suppliers listed
C
CNC Machining Shops

Best NDT Companies in Louisiana

Louisiana is one of the premier markets for industrial NDT inspection in the United States, driven by one of the highest concentrations of oil refineries, petrochemical plants, and LNG facilities in the country, centered on the Baton Rouge–New Orleans industrial corridor and the Gulf of Mexico offshore sector. NDT companies in Louisiana perform API 510 pressure vessel inspection, API 570 piping inspection, API 653 storage tank inspection, and extensive pipeline integrity work under DOT PHMSA requirements. The state's offshore platform and marine inspection requirements add further demand for rope access–qualified NDT technicians and subsea inspection capabilities.

Why these suppliers?

  • ✓Louisiana's petrochemical corridor from Baton Rouge to the Gulf gives local NDT companies unmatched depth of experience with API 510/570/653 inspection, corrosion mapping, fitness-for-service assessment, and turnaround/shutdown inspection.
  • ✓Gulf of Mexico offshore operations have produced a cadre of rope access–qualified and marine-certified NDT technicians based in Louisiana, experienced with platform topside inspection, subsea pipeline NDT, and marine structural assessment.
  • ✓The concentration of facilities in a compact geography means Louisiana NDT companies can mobilize quickly to support turnarounds, emergency inspections, and scheduled ISI programs with short lead times.

162 verified suppliers found

Kelly Pump & Supply
Lake Charles, Louisiana
+1 337-439-3510Website
Get QuoteView Profile
Kling's Machine Shop
Geismar, Louisiana
+1 225-744-3242
Get QuoteView Profile
Kyle Machine Inc
Morgan City, Louisiana5.0(5)
+1 985-395-2872
Get QuoteView Profile
Larrys Machine Works Inc
DeRidder, Louisiana5.0(5)
+1 832-398-5102
Get QuoteView Profile
Louisiana Cajun Machine Inc
Broussard, Louisiana5.0(2)
+1 337-856-4195
Get QuoteView Profile
Louisiana Machine Services
New Iberia, Louisiana4.0(1)
+1 337-369-6020Website
Get QuoteView Profile
LynqAuto
Covington, Louisiana
+1 985-500-4470Website
Get QuoteView Profile
Macco Machine Shop
New Iberia, Louisiana
+1 337-367-1999
Get QuoteView Profile
Machine Repair Inc
Baton Rouge, Louisiana2.7(7)

We manufacture Rad Power Bike accessories, Bam Power Bike accessories Extended Run Fuel Systems for Generators, dipsticks/fill tubes. Please see our website.

+1 225-357-6193Website
Get QuoteView Profile
Macy's Machine Shop Inc
Shreveport, Louisiana4.0(3)
+1 318-518-1089
Get QuoteView Profile
Mainline Machine Inc
Lafayette, Louisiana

A local Acadiana CNC machine shop in business for over 20 years. Call us for your standard or special trim and/or parts.

+1 337-837-2014Website
Get QuoteView Profile
Mario Manufacturing
Lafayette, Louisiana

Mario Manufacturing has more than 30 years of experience in manufacturing couplings, ferrules, flanges, swaging equipment, crimpers, and hose fittings.

+1 337-534-4215Website
Get QuoteView Profile
McGill Precision Waterjet LLC
Lafayette, Louisiana

Waterjet cutting, manufacturing, gear cutting, EDM, steel plate

+1 337-288-1325Website
Get QuoteView Profile
Melerine's Machine Shop
Chalmette, Louisiana
+1 504-271-2104
Get QuoteView Profile
Merrick Heavy Machines LLC
Cottonport, Louisiana
+1 318-359-4827
Get QuoteView Profile
Mid Parish Machine
Independence, Louisiana5.0(4)
+1 985-878-2142Website
Get QuoteView Profile
Monarch Machine Works LLC
New Orleans, Louisiana
+1 504-736-0199
Get QuoteView Profile
Monroe Spring & Brake Inc
Monroe, Louisiana4.6(36)

Monroe Spring & Brake Inc in 105 Breard St, Monroe, LA 71201, United States

+1 318-323-2271Website
Get QuoteView Profile
Moores Machine Shop and Fabrication
Broussard, Louisiana3.0(2)

Precision Machining Read more Drilling Read more Honing Read more Straightening Read more Precision Machining Read more Drilling Read more Honing Read more ...

+1 337-837-6974Website
Get QuoteView Profile
neatheryautoservices
Shreveport, Louisiana
+1 318-464-3541Website
Get QuoteView Profile

Frequently Asked Questions

What API certifications should an NDT company have for Louisiana refinery work?
For refinery and petrochemical inspection in Louisiana, look for companies with API 510 (Pressure Vessel Inspector), API 570 (Piping Inspector), and API 653 (Above Ground Storage Tank Inspector) certified inspectors. These certifications require passing written examinations and demonstrate competency in the applicable inspection codes, fitness-for-service assessment, and repair/alteration documentation. For in-service inspection, the company's written practices should also reference relevant API RP 580/581 (risk-based inspection) and API 579 (fitness-for-service).
How do Louisiana NDT companies support offshore and marine inspection?
Offshore and marine inspection in Louisiana typically requires IRATA or SPRAT rope access certification for topside access, commercial diving or ROV support for underwater inspection, and technicians qualified under NACE CIP or API for corrosion assessment. Many Louisiana NDT companies maintain marine inspection divisions specifically for offshore platform, pipeline riser, jacket, and jacket-to-deck connection inspections. Confirm that the company holds the appropriate marine classification society (ABS, DNV, Bureau Veritas) recognition if your work requires third-party survey.
What NDT methods are most commonly used in Louisiana petrochemical facilities?
Ultrasonic testing (UT) — including phased array UT and corrosion mapping — is the dominant method for wall thickness measurement, corrosion monitoring, and weld inspection. Radiographic testing (RT) remains standard for weld quality on pressure piping. Magnetic particle testing (MT) and liquid penetrant testing (PT) are used extensively for surface and near-surface flaw detection during turnarounds. TOFD and automated UT systems are increasingly used for high-throughput weld inspection and fitness-for-service assessments on critical equipment.

Ready to get quotes?

Request a Quote