This company has national coverage, but it is an exclusive club only for military members and their families. Those that use it have a highly rated opinion on its car insurance. Anyone that is eligible for USAA should definitely sign with them. They have more than 28,000 employees. USAA’s customer service is considered one of the best in the business. Clearsurance.com gave them a score of 4.69 based on 2,131 reviews.