Upstream & midstream Production equipment inspection, quality, & compliance
Representing - Operators, EPCs, Engineering Firms, and Fabricators
About OnSpec
Our Experience
OnSpec was founded by a fabrication professional with over 26 years of experience in upstream and midstream production equipment. Our background covers every phase— engineering, design, fabrication, assembly, testing, and delivery—so we know what to look for and what can go wrong. We’ve supported operators, EPCs, and engineering firms across the U.S., bringing firsthand knowledge of how complex builds unfold.
Area of Excellence
OnSpec is a niche inspection and oversight service provider specializing exclusively in upstream and midstream oil and gas processing equipment. Drawing on extensive practical experience, we deliver expert inspection, oversight, and quality assurance tailored to the challenges of oil and gas production equipment fabrication. Our services help you avoid costly field issues and delays by ensuring your equipment is properly built, assembled, tested, and ready for production.
Who We Help
We work with oil and gas operators, EPCs, engineering firms, and fabricators during the procurement, fabrication, assembly, and delivery phase of upstream and midstream equipment packages.
Whether you’re managing a large facility with multiple packages or purchasing a single meter skid or separator, we tailor our involvement to your needs.
How We Work
Early Engagement:
The earlier we’re involved, the more value we bring. We help review drawings, clarify specs, evaluate vendor capabilities, and help align expectations from the start.
Fabrication Oversight:
We visit shops, review progress, confirm spec adherence, and report on real-time conditions. When issues arise, we bring solutions.
Operator Representation:
We serve as your voice on-site. We make sure your project is understood, your expectations are upheld, and your team is kept informed every step of the way.