MDU Services Limited (MDUSL) is authorised and regulated by the Financial Services Authority in respect of insurance mediation activities only. MDUSL is an agent for The Medical Defence Union Limited (the MDU). The MDU is not an insurance company. The benefits of membership of the MDU are all discretionary and are subject to the Memorandum and Articles of Association. MDU Services Limited is registered in England 3957086. Registered Office: 230 Blackfriars Road London SE1 8PJ.