National Insurance number
The National Insurance number is used as a reference number in the Pay As You Earn system, and also by the self-employed. It is also used in applications for Individual Savings Accounts (ISAs), to check that an individual has opened only one ISA in a tax year.
RSA Insurance Group
RSA Insurance Group plc (trading as RSA, formerly Royal and Sun Alliance) is a British multinational general insurance company headquartered in London, United Kingdom. RSA has major operations in the UK & Ireland, Scandinavia and Canada and provides insurance products and services in more than 140 countries through a network of local partners. It has 17 million customers. RSA was formed by the merger of Sun Alliance and Royal Insurance in 1996.