United States Business of Canada Life Assurance Company (Canada Life US) is an insurance company based in Greenwood Village, Colorado. Established in 1849, the company provides life, accident, and health insurance coverage to clients based in the United States. As of September 30, 2009, Canada Life Assurance Company has been merged with Great-West Life & Annuity Insurance Company and operates as a subsidiary of Canada Life Assurance, which is in turn a subsidiary of Canada Life Financial Corporation. The assets of the company are managed by the board of directors.