The vary from one state to another. It's almost impossible to give exact names, as a company that was good yesterday may not be that great today. However, there are ways to determine whether the company that you are considering to go with is a worthy insurer. Let's discuss how you can investigate any company to make sure that they are good.
The first aspect to check is whether the company is authorized and licensed your state, which can be checked through your state Department of Insurance, or a similar institution (most states have different names for their insurance departments). The Department of Insurance is also the place where you can find a lot of information on authorized car insurance providers: complaints, diplomatic actions, financial stability rating ("A" rating or better is good).
The next step is to decide which company is best – lesser known and cheaper or well-known and more expensive? The choice is up to each insurance buyer, but we have some thoughts in this regard. Well-known companies have high brand recognition, countless employees, expensive offices, and large marketing overheads. These factors usually make larger companies set higher rates. Smaller companies, on the other hand, tend to set lower rates. Yet, they may have no dedicated agents, poor customer service, and slower claim handling. It all varies from one company to another. The best way to find the is by browsing through a couple of the auto insurance forums. You'll see what the customers are saying about the companies that you are interested in.