215 ILCS 5/180: Companies that may domesticate.

(1) Any domestic, foreign, or alien stock company, mutual company, assessment legal reserve company, reciprocal, or fraternal benefit society, authorized or which may be authorized to do business in this State, may reorganize under the laws of this State (including a reorganization as a captive insurance company under the laws of this State), by complying with the provisions of this Article.

(2) As used in this Article: "reorganize" means reorganize, reincorporate, or domesticate as an Illinois insurer; "reorganization" means reorganization, reincorporation, or domestication as an Illinois insurer; "reorganized company" means any company that has availed itself of the provisions of this Article, and the reorganization of which has been effected as in this Article provided; and "similar domestic company" means, in the case of an application for reorganization as a domestic captive insurance company, a domestic captive insurance company organized under Article VIIC.