The elderly look to this company to keep them living well into life's home stretch. Real estate investment trust (REIT) Welltower (formerly Health Care REIT) invests in senior living and health care facilities, primarily skilled nursing and assisted-living facilities designed for older people needing help with everyday living. The trust also has investments in independent living facilities, hospitals, medical office buildings, and specialty care facilities. Its $27 billion portfolio includes more than 1,400 properties leased to health care operators in 46 US states, Canada, and the UK. Additionally, it develops new properties through HCN Development, invests in mortgages, and provides construction financing for its existing properties.