"A captive is an insurance company that is wholly owned and controlled by its insureds; its primary purpose is to insure the risks of its owners; the primary beneficiaries of its underwriting profits are its insureds."
"Captive insurance companies are insurance companies established with the specific objective of financing risks emanating from their parent group or groups, but they sometimes also insure risks of the group's customers as well. Using a captive insurer is a risk management technique by which a business forms its own insurance company subsidiary to finance its retained losses in a formal structure."
" ... a limited purpose subsidiary of an organization not in the insurance business, which has as its primary function the insuring of some of the exposures and risks of its parent or its parent's affiliates."