A(n)_______ insurance company is domiciled in Connecticut:

A domestic insurance company is one that is incorporated and operates under the laws of a specific state—in this case, Connecticut. This designation implies that the insurer is regulated and governed by Connecticut’s insurance laws and regulations. Consequently, it must adhere to the state's requirements regarding licensing, financial practices, and consumer protection measures.

Foreign insurance companies, on the other hand, are those that are incorporated under the laws of a different state but operate in Connecticut. Regional and national may refer to the scope of an insurer's operations, but they do not specifically define the company's state of incorporation. Thus, only domestic accurately identifies an insurer with its primary legal home in Connecticut.