No, the insurance company has branches everywhere now. Branches search online, but some departments can't find them online. You can check by phone. The national telephone number is 955 19. You can also check whether the other party has an insurance agent license, which is safer. With the agency license, you can find out on the Internet that she works in that insurance company.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.