The company, previously known as the Northern Rock Building Society, operates as a mortgage and savings bank in the UK. Its lending business encompasses residential mortgages, personal unsecured loans, and secured commercial loans. To raise funds, Northern Rock utilizes various channels such as sterling money markets, securitization of residential mortgage loans, capital markets, covered bonds, and the domestic retail savings market. Additionally, the company distributes a range of household insurance and payment protection products primarily to its residential mortgage customers through third-party providers.