A new catalyst, based on newly synthesized inorganic superacids, was developed for the isomerization of light hydrocarbons. A series of mixed heteropoly anions with a modified Keggin structure containing different transition metals (including platinum group metals) were synthesized for this purpose. The technology for the production of superacidic catalysts with a coating of modified heteropoly complexes of the Keggin series on different supports was developed. The BrOnsted and Lewis acid sites of the developed superacidic oxo complex catalyst deposited on various supports were investigated.