The London branch of Hamazkayin was established on October 13, 1990, on the 100th anniversary of the Armenian Revolutionary Federation (ARF) at Navasartian Center, under the patronage of Yeghig Konialian, president of the Central Committee of Hamazkayin. The establishment was presided over by Mr. and Mrs. Adom and Seta Tnjougian.
Typically, the committee functions with five members and four subcommittees (literary, theater, Armenian folk dance, and music.) Currently, the chapter has 24 members.
One of the chapter’s notable accomplishments is its aid program for the public school in Aramous village in Apovyan, Armenia.