Certified, qualified, verifiable.

IWS operates an integrated management system certified to international ISO standards, and holds the only Saudi NACE qualification for casing and casing-head welding. Every job is delivered to a documented, auditable standard your operations can verify.

Commitment to excellence

Certified systems. Trusted performance.

IWS holds independently certified ISO management systems, works to internationally recognized welding and wellhead codes, and delivers welding procedures qualified with a major operator for sour service. The distinction below is deliberate — certifications we hold, procedures we have qualified, and codes we work to.

ISO 9001:2015Quality Management System — certified
ISO 14001:2015Environmental Management System — certified
ISO 45001:2018Occupational Health & Safety — certified
ASME Section IXWelding procedure & welder qualification
API 6AWellhead & christmas-tree equipment standard
NACE MR0175 / ISO 15156Sour-service materials requirements
AWS D1.1Structural welding code — worked to
a major operatorQualified to applicable engineering standards

IWS Certifications — ISO 9001, ISO 14001, ISO 45001, NACE, API Q1, ASME, AWS D1.1 and LEEA. Engineering confidence, delivering reliability.

Our competitive edge

The only Saudi NACE-qualified provider.

IWS is the only regional provider whose casing and casing-head welding methodology was developed and qualified together with a major operator's technical organization specifically to meet sour-service requirements — and it passed every qualifying test.

For operators, that qualification is the difference between a weld that merely looks right and one that is documented, temperature-controlled and traceable — able to hold on a live, sour-service well without cracking.

NACE Qualified — sour service Casing & casing-head welding

Certifications held

Independently certified management systems.

These are the certifications currently held by the IWS legal entity — independently audited and issued.

ISO 9001:2015 Quality Management

Consistent, repeatable quality across every job — from procedure qualification through inspection and hand-back, with documented records at each stage.

ISO 14001:2015 Environmental Management

Managing and reducing our environmental impact — waste minimization, conservation of resources and pollution prevention across office and field operations.

ISO 45001:2018 Occupational Health & Safety

A systematic approach to worker safety — hazard identification, risk control and a zero-harm culture backed by Stop Work Authority for every person on site.

Qualified capabilities

Welding procedures qualified for the work.

Beyond certified management systems, IWS maintains welding procedures and welder qualifications developed and tested for wellhead and casing applications — the engineering behind every job.

WPS / PQR qualificationWelding procedure specifications supported by qualified procedure records to ASME Section IX.

Sour-service proceduresProcedures qualified against NACE MR0175 / ISO 15156 and client hardness acceptance criteria.

Casing & casing-head weldingQualified for wellhead installation and workover applications, including sour-service casing grades.

Controlled PWHTChart-recorded post-weld heat treatment with documented preheat and interpass control.

Major-operator qualificationMethodology developed and qualified with a major operator's technical organization.

Welder performanceWelders qualified and periodically re-tested against the applicable procedures.

Codes & standards

Built to recognized international standards.

IWS specializes in wellhead installation and workover welding — casing and casing-head work. Our procedures, welders and documentation are aligned to the codes below; we do not fabricate pressure vessels, tanks or process piping.

ASME Section IXWelding procedure and welder performance qualification.

API 6ASpecification for wellhead and christmas-tree equipment.

NACE MR0175 / ISO 15156Materials requirements for sour-service (H2S) environments.

AWS D1.1Structural welding code, where applicable to the work scope.

a major operatorApplicable engineering standards and the D&WO Journey Management Program.

Client specificationsmajor service-provider and OEM project requirements.

Why IWS

Why operators specify IWS.

01 A qualification no one else holds

The only Saudi NACE-qualified provider of casing and casing-head welding — a methodology qualified with a major operator for sour service.

02 Documented, auditable engineering

Every weld carries a temperature record and a full documentation trail — auditable after the fact, not just visually inspected.

03 Zero-harm safety record

An ISO 45001-certified safety system, Stop Work Authority for all, and a record we hold to without exception.

04 Trusted by national operators

Serving a major operator and leading service providers and OEMs across the region.