Teachers Building Society was formed in 1966 and provides mortgages to people who work in education as well as a competitive range of savings products to the general public. Some reasons to become a member of Teachers Building Society: We are a mutual organisation run for the benefit of our members. This means that instead of having to pay dividends to shareholders we can offer great deals to both our mortgage and savings customers. Our customer service teams are fully qualified to discuss your requirements for mortgages and savings as well as providing you with a first class, personal service at all times.