Due to its particular properties the use of ionic liquids in organic transformations is maturing. Immobilized ionic liquids, supported in different substrates or used as functional support, have found important applications in the last decade. In this review, a critical overview of the applications of immobilized ionic liquids in organic transformations as catalysts or to carry reagents or nanoparticles will be presented. Special relevance will be attributed to green procedure, use of nontoxic solvents and recover and reuse of materials. Metal catalysts, organocatalysts, asymmetric aldol reactions, functional group transformations, oxidations, reductions, biooligomer synthesis like oligosaccharide and peptide synthesis will be some of the transformations to be considered.