As indicated in the decision of 23 May 2001, Sernam was set up in 1970 as part of the SNCF bringing together all activities involved in parcel services.
Som angivet i beslutningen af 23. maj 2001 blev Sernam oprettet i 1970 som en intern afdeling af SNCF til at varetage alle opgaver inden for pakketransport.