2227 verified suppliers listed

Best Marine & Offshore NDT Inspection Companies

Marine and offshore NDT inspection is a specialized discipline combining non-destructive testing expertise with the access techniques, safety protocols, and regulatory requirements of marine and subsea environments. Offshore NDT companies perform topside platform inspection using rope access (IRATA/SPRAT certified), subsea pipeline and riser inspection via ROV or commercial diving, and marine vessel hull and structural assessment under classification society requirements (ABS, DNV GL, Bureau Veritas, Lloyd's Register). These companies bridge the gap between conventional industrial NDT and the operational realities of offshore environments — tidal zones, confined spaces, remote locations, and the regulatory frameworks of USCG, BSEE, and international maritime organizations.

Why these suppliers?

  • Marine NDT companies with IRATA-certified rope access technicians can reach difficult-to-access offshore structures without scaffolding — reducing cost and mobilization time for inspection of platforms, wind turbines, bridges, and marine terminals.
  • Classification society–recognized inspection services provide survey documentation that satisfies flag state and port state requirements for commercial vessels, offshore units, and floating production facilities.
  • Subsea inspection capability — through ROV inspection or commercial diving NDT — is essential for assessing the integrity of jacket structures, pipeline risers, subsea manifolds, and seabed pipelines that cannot be accessed from surface.

250 verified suppliers found

Pocola, Oklahoma5.0(3)

Arklahoma Weld Testing & Inspection LLC has over 30 years combined experience in the welding and fabrication industry.

+1 479-208-8929Website
Tulsa, Oklahoma4.9(8)

Associated Technical Support Services, LLC. INDUSTRIAL SERVICES ABOUT COMPANY Serving the Energy Sector for Over 25 years Associated Technical Support Services LLC, takes a common sense approach to its operating philosophy; provide the customer with

+1 801-865-7195Website
Miami, Florida5.0(5)

avindt.com Non Destructive testing PT MT UT ET IR RT VT NDT AOG Inspectios NDT Level III Representation

+1 786-683-3648Website
Rye, Colorado

B-TEC LLC is a privately held industrial inspection company focused on serving our customers’ safety inspection and training needs since 1998. B-TEC trains today’s professionals in a variety of NDT, Crane & Safety Compliance.

+1 719-251-8331Website
Port Arthur, Texas5.0(1)

Safeguard your systems with Baron NDT's testing expertise.

+1 409-200-2223Website
Beaumont, Texas5.0(1)

Safeguard your systems with Baron NDT's testing expertise.

(409) 200-2223Website
Houma, Louisiana

Beacon NDT offers Non-Destructive Testing on Oil Field tools and equipment, Hull Thickness Testing (gauging), and mobile proof load testing at your location. Contact us, and let us see how we can help you!

+1 985-303-1456Website
Webster, Texas4.9(77)

Birring NDE Center is NDT training school in the Houston area. We are a TWC approved Career School. Financial Aid is available for qualified students. We also offer NDT consulting and testing services.

+1 832-533-8366Website
Haysville, Kansas5.0(1)

NDT (Non Destructive Testing) Services in South Central Kansas

+1 316-371-3627Website
Trafford, Pennsylvania5.0

Nondestructive testing services. NDT ultrasonic testing. Inspection and testing. Flow Assisted Corrosion Mapping. Weld inspection. PMI.

+1 412-403-9127Website
San Antonio, Texas5.0

Providing quality advanced Certified Welding Inspection, Ultrasonic Testing, Radiographic Testing and more in Central and South Texas. Call 210-876-6741.

+1 210-876-6741Website
La Porte, Texas

Burton NDT Rentals is a professional equipment rental and sales company specializing in industrial inspection solutions. With over 35 years of inspection industry experience and newest inventory in the industry, we help our industry partners maintain smooth operations, ensure workplace safety, and promote equipment reliability and integrity. Based out of La Porte, Texas, Burton NDT Rentals has been working with diverse clientele in many different industries like oil & gas, pipelines, pharmaceutical fa

+1 281-941-4311Website
Burgettstown, Pennsylvania3.7(9)

Our environmental services are provided by trained professionals committed to excellence, safety and customer satisfaction.

+1 724-947-9401Website
Derry, New Hampshire

At Callahan Weld Inspection LLC, we are proud to offer professional 24/7 weld inspection in NH & surrounding states.

+1 603-349-0759Website
Louisville, Kentucky

CEPEDA Associates, Inc. is an engineering and manufacturing company located in Louisville, KY, specializing in providing service and equipment to the U.S. Navy. CEPEDA is ISO 9001:2008 compliant and fully qualified to manufacture and test Level I/SUBSAFE equipment. For more than 40 years, CEPEDA has manufactured, serviced, and upgraded life support equipment and other complex mechanical components for the U.S. Navy�s submarine fleet. CEPEDA�s equipment is responsible for removing atmospheric contaminants

(888) 278-8804Website
Harlingen, Texas5.0(17)

Our Hours are Monday – Friday 8:00 a.m. to 5:00 p.m. Closed on Saturdays and Sundays

+1 956-423-6003Website

Frequently Asked Questions

What certifications should an offshore NDT company have?
Look for IRATA (or SPRAT) rope access certification at the technician level for topside access, combined with NDT certifications at ASNT Level II minimum. For offshore oil and gas work on the U.S. OCS, BSEE familiarity and BOSIET/HUET safety training are standard requirements. Companies performing structural inspection for commercial vessels should be recognized by one or more major classification societies (ABS, DNV GL, Bureau Veritas, Lloyd's Register). For subsea pipeline work, Pipeline Operators Forum (POF) or ASME B31.4/B31.8 familiarity is valuable.
What NDT methods are used for offshore platform inspection?
Visual testing (VT) by certified inspectors is the primary method for general condition assessment and identifies areas requiring further examination. Magnetic particle testing (MT) and liquid penetrant testing (PT) are standard for surface crack detection on welds, stress concentration points, and areas of visible damage. Ultrasonic testing (UT) — including phased array and corrosion mapping — is used for wall thickness measurement and flaw characterization. Alternating current field measurement (ACFM) and eddy current testing (ET) are used for fatigue crack detection in weld toes and tubular joints without requiring full surface cleaning.
How do I find a subsea NDT company for pipeline inspection?
Subsea pipeline inspection typically requires either commercial diving NDT or ROV-deployed inspection systems for areas where diving is not practical. Look for companies with IVE (In-Service Inspection for Vessels) or pipeline-specific experience and classification society recognition. For flooded member detection (FMD) on jacket structures, specialist equipment is required. For internal pipeline inspection (smart pigging or corrosion logging tools), you'll need a different class of in-line inspection (ILI) vendor. Our directory includes marine inspection companies across these service categories — use the industry filter to narrow results.

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