Collection Nationale de Cultures de Microorganismes (CNCM)

About CNCM


Due to the gradual return to our activities during this exceptional period for COVID-19, the deadlines for deposits’ acceptance and sample requests may be extended.

May 25th 2020


The National Collection of Cultures of Microorganisms (CNCM) is an international depositary authority (IDA) under the Budapest Treaty (BT). It is an autonomous unit, ensuring the safeguarding of the integrity and the controlled accessibility of microorganisms, cell cultures and viruses, deposited for the purposes of patent procedures. The CNCM is the only IDA in France and the second in Europe in relation to the number of deposits received since obtaining the IDA status in 1984.


As patent authority, the CNCM receives deposits for national and international patent procedures or other purposes requiring high secrecy requirements.

The CNCM accepts bacteria, filamentous fungi, yeasts, viruses and animal and human cell lines. Microorganisms are accepted indifferently whether they are genetically modified or not. Plasmids are not recognized by the CNCM as "type of microorganism", but as part of the properties of the microorganism.


CNCM - History
Historique de la Collection Nationale de Cultures de Microorganismes (CNCM)


CNCM statistics


The CNCM is part of:​

  • The European Culture Collections’ Organisation (ECCO)
  • The World Federation of Culture Collections (WFCC)
  • The Budapest Treaty Forum, managed by WIPO (World Intellectual Property Organization)
  • The Microbial Resource Research Infrastructure (MIRRI)
  • RI-VIS consortium (Expanding research infrastructure visibility to strengthen strategic partnerships)
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