Do Auto Insurance Companies Share Information? 
Auto insurance companies do not share information directly but all information is shared . Insurance companies report incidents to a data base which is then accessed by insurance companies when needed . For example you have an at-fault auto accident and your rates go up . You are upset about this so you shop around for insuranceelsewhere The new company will check the data base for your driving record to see if you have tickets or accidents and then crate your insurance policy accordingly . While incidents on your record may only effect you for a short period of time . For minor incidents 3 years . I have seen data show up that was 10 years old . 