Guardian Dental insurance is offered as employer/group plans as well as individual and family plans to businesses and customers throughout the country. The company is based out of Manhattan, New York and was founded in 1860. It is one of the largest life/health insurance companies in the United States (the sixth largest dental insurer), serving millions of customers. Learn how you can get a free dental quote by going to the ‘Quote’ page. If you’re a policyholder, learn about payment options and online policy management features by visiting the ‘Login’ page.