List of ISO 19443 Certified Companies (ONUSIS database)


 Last Update: 02/02/2026

  • WIKA Poland SGF

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

  • Wilhelm Böllhoff GmbH & Co. KG

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

  • Witt & Sohn AG

    WITT_SOHN_AG
    • Country Germany
    • Certification status Active
    • Certification scheme Certified by Accredited Certification Body

  • WORLDGRID France

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

  • WORTEST

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

  • WOZAIR

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

  • ZOBEL

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