List of ISO 19443 Certified Companies (ONUSIS database)


 Last Update: 23/10/2026

  • ALLIA

    ALLIA
    • Country France
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Accredited Certification Body

  • ALLIAGES ENERGIE

    ALLIAGES_ENERGIE
    • Country France
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Accredited Certification Body

  • Alloy Wire International

    ALLOY_WIRE_INTERNATIONAL
    • Country UK
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Accredited Certification Body

  • ALLWELD

    ALLWELD
    • Country South Africa
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Accredited Certification Body

  • ALTEN

    ALTEN
    • Country France
    • Certification status Inactive
    • Certification scheme Certified by Accredited Certification Body

  • ALTRAD BABCOCK EUROPE S A

    ALTRAD_BABCOCK_EUROPE_S_A
    • Country Poland
    • Certification status Active
    • Certification scheme Certified by Accredited Certification Body

  • ALTRAD Doosan Babcock Ltd

    ALTRAD_DOOSAN_BABCOCK_LTD
    • Country UK
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Non Accredited Certification Body

  • AMB

    AMB
    • Country UK
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Non Accredited Certification Body

  • AMBOS Frères Et Fils

    AMBOS_FRERES_ET_FILS
    • Country France
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Accredited Certification Body

  • AMC ENERGIE

    AMC_ENERGIE
    • Country France
    • Certification status Active
    • Certification scheme Certified by Accredited Certification Body

  • Amentum Clean Energy Ltd

    AMENTUM_CLEAN_ENERGY_LTD
    • Country UK
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Accredited Certification Body

  • Anglo Belgian Corporation

    ANGLO_BELGIAN_CORPORATION
    • Country Belgium
    • Certification status Inactive
    • Certification scheme Certified by Accredited Certification Body

  • Ansaldo Nuclear Limited

    ANSALDO_NUCLEAR_LIMITED
    • Country UK
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Accredited Certification Body

  • ANSALDO NUCLEARE S.P.A.

    ANSALDO_NUCLEARE_S_P_A_
    • Country Italy
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Accredited Certification Body

  • ANSTO

    ANSTO
    • Country Australia
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Non Accredited Certification Body

  • APAVE

    APAVE
    • Country France
    • Certification status Unknown (ISO 19443 certificate not received by NQSA)
    • Certification scheme Certified by Accredited Certification Body

  • APCO TECHNOLOGIES

    APCO_TECHNOLOGIES
    • Country Switzerland
    • Certification status Inactive
    • Certification scheme Certified by Accredited Certification Body

  • APLICACIONS METALAYM

    APLICACIONS_METALAYM
    • Country Spain
    • Certification status Active
    • Certification scheme Certified by Accredited Certification Body

  • Applus

    APPLUS
    • Country Czech Republic
    • Certification status Active
    • Certification scheme Certified by Accredited Certification Body

  • APS ENERGIA S A

    APS_ENERGIA_S_A
    • Country Poland
    • Certification status Active
    • Certification scheme Certified by Accredited Certification Body