Infaunal taxonomic abundance and biomass analysis data from survey undertaken by Cefas and JNCC in January 2013 at Central Fladen NCMPA SMPA, one of the three Fladen Grounds pMPAs. The main aims were to confirm the presence of the Priority Marine Features and MPA Search Features recommended for protection within the pMPAs and to gather groundtruth data to compare benthic assemblages between, and within/outside, the sites.