Tennessee Code Title 56. Insurance § 56-2-502

(1) “Alien insurance company” means an insurance company organized under the laws of any country other than the United States or territory or insular possession of the United States or of the District of Columbia;

(2) “Doing business in this state” by any foreign or alien insurance company means the doing in this state by the company of any act whatsoever, whether interstate or intrastate in nature, including the soliciting, making, or delivering of insurance contracts in this state, by an agent, mail or otherwise;

(3) “Foreign insurance company” means an insurance company organized under the laws of any state of the United States, other than this state, or under the law of any territory or insular possession of the United States or the District of Columbia; and

(4) “Insurance company” means an insurance or surety company, including mutual companies, and includes a corporation, company, partnership, association, social, fraternal or otherwise, order, individual or aggregation of individuals engaging in or proposing or attempting to engage in any kind of insurance or surety business, including the exchange of reciprocal or interinsurance contracts between individuals, partnerships and corporations.