Museum of London Archaeology is a Registered Archaeological Organization (RAO) with the Institute of Field Archaeologists (IFA) and is a self-financing part of the Museum of London Group, providing a wide range of professional archaeological services to clients in London, SE England, the UK and internationally. Museum of London Archaeology is the largest archaeological contractor in London and one of the 'big three' in England, along with Oxford Archaeology and Wessex Archaeology. Museum of London Archaeology carries out approximately two-thirds of all the archaeological work in Greater London, measured by value.