Parrish Inspection Built on Integrity. Proven by Performance. Trusted Worldwide.
Our Story
Since 1996, Parrish Inspection has built its reputation on a foundation of integrity, accuracy, and accountability. From our roots in Tulsa, Oklahoma, we’ve grown from a small family-owned operation into a trusted global leader in inspection, testing, and verification services.
For nearly three decades, Parrish Inspection has been recognized for delivering reliable results across the oil and gas, renewable energy, construction, and industrial manufacturing sectors worldwide. Our name stands for quality, reliability, and an unwavering commitment to representing our clients with the highest professional standards.
A Legacy of Trust and Returning Clients
Our clients return because they know what to expect — consistent, detailed, and honest inspections that protect their projects and investments. Each completed inspection builds confidence, and that confidence keeps companies coming back for their next project.
Many of our earliest partners from the late 1990s remain valued clients today. They’ve grown alongside us as we expanded our reach and capabilities, continuing to rely on Parrish Inspection for critical oversight, project documentation, and independent verification.
Our reputation wasn’t built by marketing — it was earned through performance, precision, and people who care.
Fast Growth and Global Reach
What started in Oklahoma has grown into a network supporting projects across the U.S. and around the world. From LNG terminals and refinery equipment to wind farms, solar facilities, and construction sites, Parrish Inspection delivers expertise wherever our clients build, fabricate, or operate.
Our certified inspectors and materials testing personnel are qualified to oversee projects in:

• Oil, gas, and LNG

• Wind and solar energy

• Light and heavy construction

• Structural steel fabrication

• Pressure vessels, towers, and piping systems

• Coating and refractory

• Destructive and non-destructive testing

• Onsite welder testing and certification verification

This broad experience gives us a unique advantage. We understand that every industry, site, and client has its own standards — and we meet those expectations with precision and accountability.
Materials Testing, Witnessing, and Verification
Parrish Inspection is known not only for field inspections but also for third-party witness testing and verification of materials, welds, and assemblies. Our team provides direct oversight during destructive and non-destructive testing, ensuring results that are accurate, traceable, and fully compliant with governing codes and client specifications.
Whether it’s a pressure vessel in a fabrication shop, a wind turbine tower weld, or a foundation reinforcement test on a commercial project, our inspectors verify every step with documentation that stands up to scrutiny — anywhere in the world.
Customer and End-User Focus
Every project we inspect affects someone’s operation, livelihood, and safety — from the contractor on-site to the end user turning on the equipment for the first time. That’s why our approach is forward-facing, focused equally on client satisfaction and end-user protection.
We act as trusted representatives for our clients, ensuring compliance, clear communication, and documented results. Our inspectors are trained to think beyond the job site — to see how every component, weld, or structure contributes to the larger picture of performance and safety.
Every inspection is treated as a partnership, ensuring our customers and their clients receive the confidence they deserve.
24-Hour Availability and Responsiveness
In industries where schedules are tight and downtime is costly, availability matters. Parrish Inspection offers 24-hour service to support critical testing, last-minute verifications, and rapid-response inspections anywhere our clients need us.
Our nationwide and international network allows us to mobilize quickly — whether the project requires a midnight weld verification, a weekend materials test, or an emergency site visit before delivery.
When our clients call, we answer — because trust is built on reliability.
Faith, Family, and Professional Integrity
At our core, Parrish Inspection remains a faith- and family-based company that values hard work, honesty, and respect. Every employee represents not just a brand, but a belief: doing things the right way, every time, is the only way.
We continue to operate with the same integrity that defined our beginnings nearly thirty years ago, combining modern technology, certified expertise, and family-driven values to deliver world-class inspection services.
A Reputation That Speaks for Itself
Over the years, Parrish Inspection has grown from a local service provider to a globally recognized inspection partner, serving clients across multiple industries and continents.
Our growth reflects the trust we’ve earned through consistent results, honest communication, and a steadfast commitment to protecting our clients’ interests. Whether it’s oil and gas, renewable energy, heavy construction, or commercial infrastructure, our reputation continues to open doors — built on decades of delivering quality inspections that stand the test of time.