The Department of Insurance (ODI) is charged under Ohio Revised Code Chapters 39 and 17 with the responsibility of regulating the activities of more than 1,700 insurance companies, including nearly 250 domestic companies that write more than $76 billion in insurance premiums, and pay approximately $596.3 million each year in premium taxes to the General Revenue Fund.

Ohio is the sixth largest insurance state by premium volume in the United States and the 17^th largest insurance market in the world. The industry is one of Ohio's largest employers, employing more than 100,000 people, not including agents.