interactive investor is a subscription-based online investment service in the United Kingdom, founded in 1995. It provides financial information, as well as investment tools. It is the UK's biggest flat-fee investment platform, with £59 billion of assets under administration and over 400,000 customers. The company is based in Manchester, with offices in London and Leeds. Since 2022 it has been a subsidiary of UK-based investment company Abrdn.

Abrdn plc, formerly Standard Life Aberdeen plc, is a United Kingdom-based global investment company headquartered in Edinburgh, Scotland. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.