The Guardians
of the Line
Mainline Staffing Group connects the oil and gas industry with elite-certified pipeline inspectors. CWI, UT, RT, and visual inspection professionals — vetted, deployed, and ready for the most critical infrastructure projects on earth.
Staffing Every
Critical Discipline
From mainline spreads to compressor stations, Mainline Staffing Group provides inspection professionals across every quality discipline required by the oil and gas pipeline industry. Every inspector is vetted, certified, and field-proven.
API 1169 Utility Inspectors
API 1169 certified utility inspectors providing oversight on pipeline construction spreads — monitoring right-of-way, trenching, lowering, backfill, and hydrostatic testing in compliance with API 1104 welding standards.
Coating Inspection
NACE CIP Level 1, 2, and 3 certified coating inspectors for surface preparation, coating application, and holiday testing on pipeline and facility assets.
Radiographic Testing
Certified RT technicians for real-time film and digital radiography of pipeline girth welds.
Magnetic & Penetrant
Surface inspection methods for detecting discontinuities in welds, fittings, and pipe body.
Quality Control
Dedicated QC managers and leads overseeing full inspection programs on large-diameter pipeline spreads.
Certified Welding Inspectors
AWS-certified welding inspectors with pipeline-specific API 1104 and ASME Section IX expertise.
Precision · Safety · Integrity
The Safety
Dossier
Five rigorous steps between application and deployment. Every inspector earns their place on the line.
Sourcing & Recruitment
We actively source inspectors with verified field experience on mainline pipeline projects — not just certifications on paper.
Certification Verification
Every AWS CWI, NACE / AMPP, and API certification is independently verified directly with the issuing body. No shortcuts.
Technical Interview
A hands-on technical interview with our senior pipeline inspection team to confirm code knowledge and field readiness.
Client Connection
We match the inspector's discipline, experience level, and certifications to your specific project requirements — aligning the right talent with the right scope.
Project Placement
Inspectors are mobilized to the site with project-specific documentation, site inductions, and continuous support throughout the deployment.
Built by Pipeline
Professionals
Mainline Staffing Group was founded with one mission: to be the definitive source for pipeline inspection talent in the oil and gas industry. We don't staff desks — we staff the right-of-way.
Our team understands the demands of pipeline construction because we've been there. From 36-inch mainline spreads in the Permian Basin to compressor station tie-ins in Appalachia, we know what it takes to keep a project on schedule and in compliance.
When an asset owner needs a CWI who can read API 1104 in their sleep, or an NDE crew that can handle 200+ welds per day — they call Mainline.
Precision First
Every inspector we deploy meets the exact technical specifications your project demands. No filler, no compromises.
Industry Insiders
Founded by pipeline professionals who've walked the right-of-way. We speak your language because we've lived it.
Rapid Response
When your spread needs inspectors yesterday, we mobilize within 24 hours. Downtime on the line isn't an option.
Safety Culture
Zero-incident is the only target. Every inspector is screened for safety performance history before deployment.
Deploy Your
Next Move
Whether you need a full inspection crew or you're a certified inspector ready for your next project — start the conversation here.
Response within 24 hours · Confidential · No obligation
