
The company
Eighteen yearsworking to code.
ONIX, C.A. fabricates, welds and erects structural steel for Venezuelan industry. What sets the work apart is not the steel — it is the dossier that comes with it.
Some forge it, others sell it. We turn iron into a craft — welded and erected.
How ONIX works
Our own shop and field crew
ONIX welders, fitters and foremen. The core of the job is not subcontracted and does not depend on anyone else's schedule.
Working to code
Procedures qualified before anyone welds, and testing interpreted by a certified inspector. Every joint is backed by a record.
Fabrication and erection in one contract
From shop detailing to the final lift. No grey area between whoever fabricates and whoever erects.
Engineering that crosses borders
We deliver analysis, welding qualification and test interpretation online to clients in any country.

Steel section being prepared: the work that comes before erection. 
ONIX crew reviewing a two-level structure on site.
Reach
How far
ONIX goes.
Anywhere in Venezuela
The job travels
We move the crew and the lifting equipment to your site anywhere in the country, and transport is part of the quote — it does not come back later as a separate line.
No geographic limit
The engineering does not travel
We deliver calculations, drawings and procedure qualification remotely, wherever your project is. This is the line ONIX serves outside Venezuela without moving a crew.
See online engineering
Mission, vision and values
What the company
is here to do.
Mission
To help our clients bring construction projects to life to high quality standards, designing, fabricating and erecting steel structures with qualified personnel.
Vision
To be the most reliable company in the design, analysis, fabrication and erection of steel structures in Venezuela and Latin America.
Values
- Accountability
- Delivering what was committed to clients, staff, suppliers and shareholders.
- Safety
- Running every process without risk to people or damage to equipment.
- Quality
- Delivering work that holds up to whoever audits the job.
From enquiry to handover
- 01
Scope
The request, the drawings if any, and the site conditions are reviewed.
- 02
Engineering
Analysis, detailing and a material list with the tonnage that sets the price.
- 03
Qualification
WPS, PQR and qualification of the welders who will run the joints.
- 04
Fabrication
Cutting, fit-up, welding and coating in the shop, controlled piece by piece.
- 05
Erection
Transport, lifting, alignment and field welding with inspection.
- 06
Handover
Testing, the quality dossier and as-built drawings of what was built.
Codes and testing
The steel is what you see.
The dossier is what you read.
Eighteen years working to code. The difference between a structure that looks right and one that gets handed over is the dossier behind it: qualified procedure, qualified welder, and testing interpreted by an inspector. Without that dossier, the steel can be flawless and the job still fails inspection.
Tests we run
- Ultrasonic testing (UT)
- Magnetic particle testing (MT)
- Liquid penetrant testing (PT)
- Radiographic testing (RT)
- Visual testing (VT)
ASME
Sections VIII and IX
Pressure vessels and welding qualificationSections VIII and IX
AWS
American Welding Society
Structural weldingAmerican Welding Society
ASNT
Certified inspection
Nondestructive testing and interpretationCertified inspection
API
650 and 653
Storage tanks: new build and in-service inspection650 and 653
AISC
Structural steel
Structural analysis and designStructural steel
We deliver engineering, qualification and testing online to any country.
ONIX, C.A. clients
They have put the job in ONIX's hands
- DuPont
- PDV Marina
- Marea
- DICOMAEI — Dirección de Construcción y Mantenimiento del Ejército
- Alcaldía de Dabajuro
Tell us what you need to build.
With drawings, or with nothing but the idea. Message us on WhatsApp and you get a first technical read and an estimated tonnage back — at no cost, no commitment.















