A Full Service Engineering Firm, Under One Roof

Onyx Engineering is a full service engineering firm bringing process, mechanical, instrumentation and electrical, and civil/structural engineering together with project staffing and safety planning. All under one company. That’s what lets a refining or petrochemical project move from concept to construction with one team instead of several. Problems get caught early, and nobody’s waiting on someone else’s schedule to move forward.

Each area covers a different part of a project, and a different kind of support:

Engineering Services

Design and technical work: process, mechanical, instrumentation and electrical, civil/structural engineering, topographic surveying/mapping, plus estimating and scheduling. We also offer 3D laser scanning, a capability most Gulf Coast engineering firms don’t manage in-house. If your project needs studies, drawings, specifications, or a cost and schedule built before ground gets broken, this is the team that builds it.

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Project Services

Embedded, on-site engineers and project staff who support your team at your facility on a long-term basis. If you need ongoing support at your facility rather than a one-time deliverable, this is where that comes from.

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Safety Services

Safety staffing, standby teams, and rescue teams for job sites that need dedicated safety coverage as its own function, not folded into someone else’s schedule. If your project needs safety professionals on-site in their own right, this is that team.

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Built on 30+ Years in Refining and Petrochemical

Since 1992, Onyx has worked exclusively in refining and petrochemicals, across Corpus Christi, the Gulf Coast, and into North Texas and Oklahoma. That focus means engineers here have spent their career solving problems specific to your industry.

Trusted Engineers. Proven Projects.

If you’re ready to talk about a project, or you’re vetting before you sign anything, get in touch.