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

Allen, Texas

JMD NDT is founded to offer Reliable NDT Products & Accessories to US & Global markets. Its objective is to offer quality products & accessories

+1 908-224-2858Website
Sturbridge, Massachusetts5.0(1)

KaMac NDT is a manufacturers

+1 508-347-7790Website
Ardmore, Oklahoma

We provide scheduled and unscheduled aircraft maintenance support services for government-owned and military-operated turboprop and jet aircraft.

+1 580-260-5464Website
Gilbert, Arizona

BS Indiana Univeristy, API 510 Inspector #20977, American Welding Society CWI #04061601, UT level II and CFI Helicopter. Experience in inspecting UOP CCR Platformer unit and reactors during fabrication and insitu accesment during unit shut downs. 30+ years experience in builting/expanding and turn around work in oil refinery processes units around the world. UA journeyman Steam Pipefitter.

Pittsburgh, Pennsylvania

KTA offers independent non destructive testing, quality assurance, and verification of metallic substrates utilizing a variety of cutting-edge technologies.

+1 800-245-6379Website
Broussard, Louisiana4.2(5)

COMMITTED TO OUR CUSTOMERS Here at Lead NDT, we strive to form long lasting personal relationships with our customers and clients. Not only do we provide a serv

+1 337-330-2331Website
Hayward, California

Index Page (Home Page) for Level III NDT

+1 650-654-3601Website
Loveland, Colorado

Rugged, Reliable, Portable X-ray Solutions for NDT Users Worldwide.

Website
Waco, Texas

LoneStar NDE Innovations focuses on tech developments that add value to the Nondestructive inspection stakeholders. This is accomplished through innovative collaborative robot (cobot) NDI systems, portable/automated ultrasonic, eddy current, bond testing (resonance), and phased array ultrasonics equ

Website
Oklahoma City, Oklahoma3.7(3)

is a Oklahoma City based NDE company servicing in Dimensional Inspection, Liquid Penetrant Testing, Magnetic Particle Testing, and Ultrasonic Testing. We also specialize in certified classroom training and SNT-TC 1A Level II Testing.

+1 405-408-5810Website
Edgewood, Maryland5.0(3)

Authorized & Certified Boiler/Pressure Vessel & Structural Welding Inspectors

+1 410-676-9962Website
Elk Grove Village, Illinois4.6(25)

MIL delivers precision metal finishing, coating, and non-destructive testing services backed by 80 years of experience and extensive approved specifications.

+1 847-437-4488Website
Marietta, Georgia

Get Updates And Stay Connected -Subscribe To Our Newsletter Subscribe Request a Quote STANDARD SYSTEM SALES: s.delaney@marietta-ndt.com

+1 770-528-9000Website
Middleboro, Massachusetts

Mass Tank�s 60,000 square foot facility in Middleboro, MA was formerly used to manufacture the famous Maxim line of fire trucks. Along with sandblasting and fiberglass booths which are used to prepare the tanks, we use the original paint bay, the largest in New England, to apply the final paint coatings. The strategically located manufacturing site affords the Mass Tank delivery team accessibility to the US Highway interstates and ports of shipping for international clients. Our facility has manufactu

Website
Northborough, Massachusetts

Matec Instrument Companies, Inc. is an industry leader in providing ultrasonic nondestructive testing solutions. Our systems incorporate a wide range of features tailored to meet the needs our customers. Matec provides a full range of in-house services including mechanical and electronic design, machining and fabrication, instrumentation and control, and data acquisition and analysis software. This

(508) 393-0155Website
Houston, Texas5.0

For NDT solutions, service and support please call us at 832-471-7138 or send an email to info@MetallurgyNDT.com.

+1 832-471-7138Website

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.

Ready to get quotes?

Request a Quote