Certified Welding Inspection
We Build The Best.
Mr. Marthius J. Simon
NOMIS provides superior quality inspections to meet and exceed regulatory and client guidelines. Our comprehensive and professional inspection services come with competitive premium pricing to maximize the effectiveness of our client’s inspection budget. With the cumulative efforts of our team, we provide safe, accurate, and informative inspections from start to finish.
We are a company where the Oil & Gas Industry Company of Trinidad and Tobago formerly PETROTRIN has been our foundation and home base for knowledge and 15+ years of experience in the Caribbean. Nomis has since expanded its portfolio in the Inspection industry across the United States to New York, Alabama, Nebraska, Maine, Mississippi, Florida, Iowa, Rhode Island, Pennsylvania, Philadelphia, and Virginia.
Exceptional Service with Quality Results is Our Mission
Our highly skilled AWS,( American Welding Society ) API( American Petroleum Institute) and (ASNT)American Society for Nondestructive Testing) inspectors and technicians work closely with engineers to help identify and resolve problem areas.
Why Choose Us
- Certified Quality Inspectors.
- 30 Years of Oil & Gas, Fabrication and Construction Experience.
- Exceptional Service. With Quality Results.
Our Services
From welding inspections to advanced NDT methods, NOMIS delivers precision, compliance, and confidence. Our certified team ensures your projects meet every safety and quality standard — on time and on spec.
Consulting Services
Ensure compliance across every build phase — from inspections to welder qualifications and shop audits.
Visual Welding Inspection
Get expert evaluation before, during, and after welding — verifying materials, dimensions, and weld quality.
Dye-Penetrant Testing
Reveal cracks and defects invisible to the naked eye using this fast, non-destructive method.
Magnetic Particle Testing
Detect surface and subsurface flaws using magnetic fields — ideal for iron, steel, and related alloys.
Nondestructive Testing
Assess component integrity during fabrication or repair — without damaging the material.
Radiographic Testing
Quickly verify alloy type and grade to prevent mix-ups and ensure material compliance.
A view Of What We Do
What People Say
Carlos M.
Project Manager
Their team was sharp, fast, and professional throughout our inspection phase. Every report was clear, and their commitment to safety gave us total confidence in the final outcome. I highly recommend them for any serious project.
Stacey B.
Lead Engineer
We’ve worked with NOMIS on multiple welding and QA/QC inspections. Their attention to detail and communication skills made the process seamless. You can tell they care about quality and client satisfaction. Always a pleasure to work with.
Troy D.
Site Supervisor
NOMIS consistently delivers outstanding service. Their inspectors are knowledgeable, arrive on time, and provide thorough documentation. We’ve had zero issues since partnering with them. Their standards are high — and it shows.
Linda S.
QA/QC Coordinator
Over the past year, NOMIS has been essential to our fabrication and NDT processes. They understand codes and standards, and always offer helpful insights. It’s rare to find a company this dependable and detail-oriented. Worth every dollar.
James R.
Operations Lead
When time was against us, they showed up, got the job done right, and helped us avoid costly rework. Their inspectors are certified, fast, and courteous. You won’t need to babysit them — just book, brief, and they’ll take it from there.
Rebecca T.
Facility Engineer
We’ve hired NOMIS for multiple projects, and every experience has been smooth. Whether it’s visual inspection or PMI, their reports are clean, their team is punctual, and the results speak for themselves. They take pride in the work.
Got A Question?
Got A Question?
The Founder
Mr. Marthius J. Simon is the founder and CEO of Nomis NDT LLC.
Nomis NDT is a premier inspection company that provides an array of inspection services, nondestructive testing services, special inspections as well as Consulting Services. Our highly skilled (American Welding Society) API (American Petroleum Institute) and (ASNT)American Society for Non-Destructive Testing) inspectors and technicians work closely with engineers to help identify and resolve problem areas.
Mr. Marthius J. Simon
Training & Specification
NOMIS is also qualified and certified in providing Training in all Inspection and Testing designations and Welding Procedure Specifications. Click the link to learn more about the various Training and Certifications offered.
Companies That Received Our Exceptional Services
