The Progressive Corporation (PGR), Progressive Casualty Insurance Company, through its subsidiaries, provides personal automobile insurance, and other specialty property-casualty insurance and related services in the United States. The company operates in three segments: Personal Lines, Commercial Auto, and Other-indemnity. The Personal Lines segment writes insurance for private passenger automobiles, motorcycles, boats, and recreational vehicles through both an independent agency channel and a direct channel. The Commercial Auto segment writes primary liability and physical damage insurance for automobiles and trucks owned by small businesses primarily through the independent agency channel. The Other-indemnity segment provides professional liability insurance to community banks, principally directors, and officers liability insurance. It also provides insurance-related services, primarily providing policy issuance and claims adjusting services in 25 states for Commercial Auto Insurance Procedures/Plans. In 2008, the company was ranked 175 in the Fortune 500.

The company was co-founded in 1937 by Jack Green and Joe Lewis and is headquartered in Mayfield Village, Ohio