Sienna Senior Living Inc. provides senior living services in Canada. It operates through Retirement and Long-Term Care (LTC) segments. The company offers independent supportive and assisted living, independent living, memory care, and LTC services; and management services to senior living residences. The company was formerly known as Leisureworld Senior Care Corporation and changed its name to Sienna Senior Living Inc. in May 2015. Sienna Senior Living Inc. was founded in 1972 and is headquartered in Markham, Canada.