Alliance Trust plc is a UK-based investment company that has been in operation for over 130 years. The company’s main focus is on long-term investments and it has a diversified portfolio that includes equities, bonds, and property. Alliance Trust is unique in that it is self-managed, meaning that its board of directors makes all investment decisions. The company has a strong reputation for financial stability and has consistently delivered above-average returns to its shareholders. Alliance Trust also places a strong emphasis on responsible investing and has a commitment to sustainability and ethical business practices. Overall, Alliance Trust is a well-respected investment company with a long history of success in the UK market.