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NQSA
ISO 19443
ISO 19443
ISO19443 – NQSA One step further
Certified companies
Statistics (from ONUSIS database)
List of Certified Companies (access to ONUSIS database)
Accredited Bodies
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NQSA
ISO 19443
ISO 19443
ISO19443 – NQSA One step further
Certified companies
Statistics (from ONUSIS database)
List of Certified Companies (access to ONUSIS database)
Accredited Bodies
News
We take of
safety and quality
in the nuclear supply chain
List of ISO 19443 Certified Companies (ONUSIS database)
Last Update: 31/10/2025
Country
Select all
Australia
Austria
Belgium
Czech Republic
France
Germany
India
Italy
Japan
Korea
Luxembourg
Poland
Romania
Russia
Slovakia
South Africa
Spain
Sweden
Switzerland
Thailand
UK
Ukraine
USA
Certification scheme
Select all
Certification Body Unknown
Certified by Accredited Certification Body
Certified by Non Accredited Certification Body
Certification status
Select all
Active
Unknown
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SEWON
SEWON
Country
Korea
Certification status
Active
Certification scheme
Certified by Accredited Certification Body
SICA NUCLÉAIRE
SICA_NUCLEAIRE
Country
France
Certification status
Active
Certification scheme
Certified by Accredited Certification Body
Siderforgerossi Group S.p.A.
SIDERFORGEROSSI_GROUP_S_P_A_
Country
Italy
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SIEM SUPRANITE
SIEM_SUPRANITE
Country
France
Certification status
Active
Certification scheme
Certified by Accredited Certification Body
SIEMENS ENERGY
SIEMENS_ENERGY
Country
Germany
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SIG Trading Limited
SIG_TRADING_LIMITED
Country
UK
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SIGEDI
SIGEDI
Country
France
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SIGMA GROUP
SIGMA_GROUP
Country
Czech Republic
Certification status
Unknown
Certification scheme
Certified by Non Accredited Certification Body
SIMIC
SIMIC
Country
Italy
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SITES
SITES
Country
France
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SIXENSE NECS
SIXENSE_NECS
Country
France
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SMEP INDUSTRIES
SMEP_INDUSTRIES
Country
France
Certification status
Active
Certification scheme
Certified by Accredited Certification Body
SNEF POWER SERVICES
SNEF_POWER_SERVICES
Country
France
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SNIG
SNIG
Country
France
Certification status
Unknown
Certification scheme
Certified by Non Accredited Certification Body
SNT Energy
SNT_ENERGY
Country
Korea
Certification status
Active
Certification scheme
Certified by Accredited Certification Body
SOCOTEC POWER SERVICES SAS
SOCOTEC_POWER_SERVICES_SAS
Country
France
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SOFREN
SOFREN
Country
France
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SOM
SOM
Country
France
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SOMMER-HOF
SOMMER_HOF
Country
Germany
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
SOTUMEC
SOTUMEC
Country
France
Certification status
Unknown
Certification scheme
Certified by Accredited Certification Body
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