 Kantor is President of the European Jewish Congress, President of the European Council on Tolerance and Reconciliation (ECTR), President of the International Luxembourg Forum on Preventing Nuclear Catastrophe, President of the World Holocaust Forum Foundation (WHF), Chairman of the European Jewish Fund (EJF), and Chairman of the World Jewish Congress (WJC) Policy Council.In 2018, "Forbes" estimated Kantor's net worth at US$3.7 billion, making him the 29th richest person in Russia and the 630th richest person in the world.In 2019, Kantor entered The "Sunday Times Rich List" for the first time, with an estimated wealth of £2.992 billion, making him the 53rd richest man in the UK.