How can I find out previous years car insurance providers?

1) If you do your insurance through a broker then they'll know. Otherwise you could check your bank or credit card statements if you have them and you paid in either of these methods. I'm sure your bank can issue historical statements (for a nominal fee!). There is an insurance database but unfortunatly Joe Public doesnt have access to it!

2) No there is no "offical" record. I would try and find old statements from previous insurance companies. But sorry other than that there is NO way to find out. Just shop and find a good rate and stick with them. You by switch are losing out on a discount most insurance companies offer. Its a renewl discount or renewl credits. Lets say you had Allstate Insurance 6months ago and you tell them when you go to sign up again that you have had Allstate before you get renewl credits from your past. But it depends on how long you with them prior. So make sure to tell the companies you are unsure if you with them or not so they can look you up in their book of business.