Chartered Insurance InstituteThe Chartered Insurance Institute (CII) is the world’s leading professional body for insurance and financial services. It is based in the heart of the City of London in the Insurance Hall which was formally opened by King George V in 1934. The centre piece of the building is the magnificently oak panelled Great Hall with its stained glass windows detailing a history of insurance companies from the past. The building is also home to an extensive collection of fire marks from around the world.