The East Africa Study Circle (EASC) was founded in 1979 to study, record and publish information relating to the philately and postal history of Kenya, Uganda and Tanganyika including all of the forerunners, British East Africa (Company and Imperial Administrations), East Africa and Uganda Protectorates, Deutsch Ostafrika (DOA), Belgian Occupation of DOA, Kenya and Uganda, Kenya Uganda and Tanganyika/Tanzania (KUT) and Kenya, Uganda and Tanganyika/ Tanzania after independence in the early 1960's to the present day.

The EASC has around 175 members worldwide who receive the award-winning Bulletin, can attend Meetings, buy and sell at the twice-yearly Members' Auctions and borrow books from the Library as well as having access to leading specialists in East African philately, and meets three times a year on Saturday afternoons in late February and late September (to coincide with Stampex) and in mid June at the Union Jack Club, Sandell Street, Waterloo, London SE1 8UJ.