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Ireland · Certification

AS9100 certification in Ireland

Achieve AS9100 certification in Ireland with Sterling: 8,100+ client engagements in 60+ countries, 20+ years.

  • Accredited certification
  • London office team
  • Effivity software included
  • Academy training included

Clients include

  • Allianz
  • Emirates Flight Catering
  • Etihad Rail
  • Haier
  • Whirlpool
  • Emerson
In short

AS9100 certification in Ireland at a glance

Two Irish instruments bear on AS9100. Not one of them names it. So why do buyers in Ireland keep asking for the certificate?

Aerospace quality is governed by the sector's own scheme, and suppliers meet it through the 9100 series. The IAQG's OASIS database records suppliers certified under the scheme rules, together with the certification bodies and accreditation bodies involved, so customers can check status. The Irish Aviation Authority publishes the directory of Part 145 approved maintenance organisations; that approval is regulatory and does not name AS9100. Engineering firms in regions such as the Mid-West, which IDA Ireland describes as having engineering companies, may meet AS9100 through customer requirements. Certification is issued by a certification body whose accreditation, by INAB or another recognised body, covers the scheme. Sterling's London office helps Irish organisations through gap analysis, configuration, risk and traceability controls and internal audit, with Effivity and Sterling Academy included in the engagement.

The need

Who needs AS9100 in Ireland, and what happens without it

In Ireland the question rarely comes from a law. It comes from the buyer, the regulator or the partner that wants proof before it signs. These are the organisations that get asked.

  • Aircraft maintenance and component organisationsThe IAA publishes the directory of Part 145 approved maintenance organisations; customers in aerospace look for supplier quality evidence beyond that approval.
  • Precision engineering suppliers to aerospace customersAerospace customers use the sector's OASIS database to check whether a supplier holds 9100-series certification.
  • Contract manufacturers moving into aerospace workEntering the sector means meeting its quality management requirements as well as general ISO 9001.
  • Software and electronics suppliers to avionics customersCustomers pass down configuration, risk and traceability expectations.

Not sure which of these applies to you?Answer a short set of questions and your readiness report arrives by e-mail.

Take the AS9100 readiness check
Requirements

AS9100 requirements in Ireland

Strip away the vocabulary and AS9100 asks a supplier to prove six things about delivering aerospace products safely and on time.

Product safety is managedRisks to product safety are identified and controlled throughout the product's life, from design to delivery.
Configuration is under controlThe approved configuration of each product is identified, changes are controlled and records match what was delivered.
Counterfeit parts are kept outPurchasing, inspection and supplier controls stop counterfeit or suspect parts from entering the product.
Operational risks are managedRisks to delivery and product conformity are assessed and controlled during planning and production.
Production is proven before it runsProduction process verification, such as first article inspection, confirms that processes can make conforming product.
Delivery and conformity are measuredOn-time delivery and product conformity are measured, and human factors are considered when nonconformities are investigated.

In Ireland these six sit alongside the local laws and regulations listed under drivers below; one system can evidence both. The detail is on the global hub: AS9100 explained →

    How Sterling gets an Irish company certified

    How to get AS9100 certified in Ireland

    One team from the London office carries the work from scoping to certificate. Clients in Ireland are served from Sterling's London office, on-site where the work needs it and remotely otherwise.

    1. Discovery call and scopeEntities, locations, regulators and target date, agreed before any proposal.
    2. Gap assessment against AS9100 and the Irish requirements that apply to youControls you already run for your regulators and customers are reused, not rebuilt.
    3. Your system built with your team in EffivityRisks, controls, evidence, incidents and reviews in one live system the auditor can see.
    4. Internal audit, management review and corrective actionsYour internal auditors trained by Sterling; the evidence proven before the certification body arrives.
    5. Certification body stage 1 and stage 2, then surveillanceAn accredited body audits and decides. Sterling supports the audits and the three-year cycle.
    Included in every engagement
    • End to end, from one team
    • Effivity ISO & GRC software
    • Preferential Sterling Academy access, with complimentary awareness training for your people
    • Internal auditor training for your audit team, as applicable to your standard
    • Vulnerability assessment on ISMS engagements

    The Sterling Promise: 100% on-time completion, 100% success, 8,100+ client engagements.Sterling does not certify. Certification decisions stay with independent bodies.

      Time

      How long does AS9100 certification take in Ireland?

      There is no standard duration: it depends on your scope and on how much of the system already runs. In Ireland these are the factors that set the timeline.

      • Customer flow-down requirements
      • Product safety, configuration management and counterfeit-part controls
      • Number of sites and product lines
      • Existing ISO 9001 maturity

      Sterling agrees a dated plan with you on the discovery call, once the scope is known.

      Cost

      How much does AS9100 certification cost in Ireland?

      The cost has two parts: the consulting work to build and prove the system, and the certification body’s audit fees, which are quoted separately. In Ireland these factors move both.

      • Scope of design, production and maintenance activities
      • Number of sites and special processes
      • Certification body audit fees quoted separately from consulting
      • Documentation and traceability tooling

      Sterling gives one customised, all-inclusive proposal after the discovery call, never before the scope is agreed.

        Choosing a partner

        AS9100 consultants and certification bodies in Ireland

        Two different organisations are involved. A consultant helps you build the system and prove it works; an accredited certification body then audits or assesses it and decides. Keeping the two separate is what makes the result credible to buyers and regulators.

        • Check that the body’s accreditation or approval covers AS9100 and your sector, and that its certificates can be verified online.
        • Ask the consultant how the local requirements in Ireland are mapped into the same system, so nothing runs twice.
        • Ask for client references in your sector; Sterling’s client letters are available on request.
        • Agree who owns the evidence and the tool after the engagement; with Sterling the system stays yours, in Effivity.

          Laws and regulations that drive AS9100 in Ireland (3)

          InstrumentHow it treats the standard
          IAQG OASIS database and 9100-series schemeScheme rule
          OASIS lists suppliers certified or registered under the IAQG rules to the aerospace quality management system requirements (9100 series), with the certification bodies and national accreditation bodies involved.
          Irish Aviation Authority Part 145 approvalsDoes not name the standard
          The IAA directory lists approved maintenance organisations with their approval numbers and ratings and does not name AS9100.
          IDA Ireland engineering sectorDoes not name the standard
          IDA presents engineering as a sector, and the Mid-West article describes engineering companies in the region.

          Accreditation, audit language and remote audits in Ireland

          Use a certification body accredited for this standard by INAB, the Irish National Accreditation Board, or by an accreditation body within the international mutual recognition arrangements (Global ACI — Global Accreditation Cooperation Incorporated, formerly the IAF MLA); check that the accreditation scope covers the standard and your sector. Aerospace certification also follows the IAQG scheme rules, so confirm that the certification body is able to record the certificate in OASIS. Edition and transition details: AS9100 hub →

          Audit language

          English is the working language of Irish business, so audits and controlled documents are normally in English; agree the language with the certification body at application and follow any requirement in a tender or contract.

          Remote and on-site

          Remote audit elements are at the certification body's discretion under its accreditation rules; operational sites are normally visited on-site.

          AS9100 in Ireland: questions clients ask

          Is AS9100 required to hold an IAA Part 145 approval?

          The IAA directory of Part 145 approved organisations does not name AS9100 or any other quality management standard. Part 145 approval and AS9100 certification are different things: one is a regulatory approval, the other a management system certificate. Ask the IAA about approval requirements and your customers about the certificates they expect.

          What is OASIS and why does it matter for AS9100?

          OASIS is the Online Aerospace Supplier Information System. It lists suppliers certified or registered under the IAQG rules to the 9100-series requirements and also holds the national accreditation bodies, certification bodies and auditors involved. Aerospace customers use it to check supplier certification, so confirm that your chosen certification body records certificates there.

          Which certification body should an Irish company use for AS9100?

          Choose one accredited by INAB or within the international recognition arrangements that can also certify under the IAQG scheme. INAB's published list of certifiable management systems does not name AS9100, so ask the body to show its scope and its OASIS standing before you commit.

          Do I need ISO 9001 before AS9100?

          AS9100 builds on the quality management system requirements of ISO 9001 and adds aerospace-specific ones, so a mature ISO 9001 system shortens the path. Ask the certification body whether it needs to see any earlier certificate. Sterling can assess where your documented information and processes already meet the aerospace additions and where gaps remain.

          Read more

          More on AS9100 for Irish organisations

          Explore

          Other standards Irish businesses ask Sterling for

          Organisations in Ireland often combine AS9100 with one of these, under one management system where the scopes allow.

          All 22 standards Sterling delivers in Ireland →

          Next step

          Start with a free discovery call from the London office

          A Sterling consultant goes through your entities, your regulators and your target date with you. No proposal until the scope is agreed.

          Sources

          1. IAQG OASIS database and 9100-series scheme — iaqg.org (accessed 7 Oct 2026)
          2. Irish Aviation Authority Part 145 approvals — iaa.ie (accessed 7 Oct 2026)
          3. IDA Ireland engineering sector — idaireland.com (accessed 7 Oct 2026)
          4. Irish National Accreditation Board (INAB) — inab.ie (accessed 7 Oct 2026)

          Talk to a consultant

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