Established in 1957, Symetra Financial is a privately held corporation that provides employee benefit, annuity and life insurance products through Symetra Life Insurance Company. The company offers group health benefits for part time, seasonal and temporary workers, as well as retirement plans for small- and medium-sizes businesses. It sells products under the Spinnaker and Accumulation Life brands. Symetra Life Insurance Company serves more than 2 million customers throughout the United States. It offers products through a network of benefit consultants, financial institutions and independent agents and advisors. The company provides online financial calculators and life insurance, annuity and retirement forms.