Established in 1971, Marcus & Millichap Real Estate Investment Services is one of the largest national brokerage firms that specializes in real estate investments. It undertakes more than $20 billion of investment transactions annually for private and institutional investors. Marcus & Millichap Real Estate Investment Services provides services for shopping centers, office and industrial buildings, apartment properties, single-tenant and net-lease properties, hotels and motels, senior housing facilities, manufactured home communities, land, self-storage units and health care facilities. The firm is headquartered in Encino, Calif., and is owned and operated by Marcus & Millichap Companies. It offers a variety of services, such as investment sales, advisory, financing and research. Marcus & Millichap Real Estate Investment Services maintains an office in Phoenix.