Selecting an outsourcing provider based on the combined MABAC-ELECTRE method using single-valued neutrosophic linguistic sets.

•A new method is proposed for the outsourcing provider selection.•A fuzzy set is used to depicted qualitative information in the selection.•The method considers the non-compensation of criteria.•Two aggregation operators of single-valued neutrosophic sets are defined.•Results of comparative analysis prove the effectiveness of the method.