Boeing Defence UK Ltd. (BDUK) is a subsidiary of The Boeing Company and a business unit of Boeing Defense, Space & Security. It currently has employees at 20+ locations in the UK, supporting Ministry of Defence, UK Home Office and U.S. military programmes. The Boeing Portal in Fleet, Hampshire houses the Advanced Programmes team whose role is to conduct Operations Analysis, Simulation and Modelling in support of both BDUK and wider Boeing Defence & Security (BDS).