For the preparation of electrical conductive thermoplastic composites by incorporation of carbon nanotubes (CNTs) melt compounding is a suitable and scalable method. During the process of dispersion of as produced primary CNT agglomerates into the matrix, the wetting and infiltration of the matrix polymer chains into the agglomerate structures are important initial steps, followed by the dispersion steps involving rupture and erosion of agglomerates. Low viscous additives can help to facilitate such steps e.g. by reducing the interfacial tension between CNTs and matrix. Also additives which interact with the π-system of the CNTs seem to be promising to stabilize individualized CNTs. The aim of this study was to improve the dispersion of multiwalled CNTs in polyamide 12 and decrease the electrical percolation threshold by the use of additives. Different kinds of additive were selected which either interact with the π-system of the CNTs (iImidazolium based ionic liquid (IL) and 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA)) or improve the CNT wettability (cyclic butylene terephthalate, CBT). The composites were melt mixed using a DACA microcompounder. The CNT macrodispersion was analysed using transmission light microscopy on thin sections. The electrical percolation threshold for PA12/MWCNT, measured on compression molded plates, was found at 2-2.25 wt%. The addition of CBT leads to a decrease towards 1-1.5 wt% whereas the CNT macrodispersion was not improved. A slightly higher percolation threshold of 1.5 wt% was found for PTCDA as additive, whereby the CNT macrodispersion did not improve. The lowest percolation threshold was achieved with IL at 1-1.25 wt% CNT. At the same time, the CNT macrodispersion was improved as indicated by the presence of a lower number and lower size of remaining CNT agglomerates. This illustrates that the use of such additives may improve the performance of PA12 based CNT nanocomposites.