Born in Vienna, George Weidenfeld left Austria for England in 1938. During World War II he worked with the BBC Overseas Service, mainly as News Commentator on European Affairs, and in 1945 founded the publishing firm, Weidenfeld & Nicolson, with Nigel Nicolson.
Writing for the New Statesmen in 2002, Dennis Sewell claimed that Weidenfeld, 'a serious operator at the level of government, editors and media proprietors', often used his influence to try and prevent critical media coverage of Israel. 
Weidenfeld has published works of many important international historians and biographers and the memoirs of some of the most prominent politicians of his generation, including General de Gaulle, Dr. Konrad Adenauer, Harold Wilson, Golda Meir, President Johnson, Moshe Dayan, Dr. Henry Kissinger and Shimon Peres. 
- Founder Club of Three | EastWest Institute, Board member | European Institute for the Study of Contemporary Antisemitism | German-British Forum | Institute for Strategic Dialogue | Jerusalem Foundation, UK Trustee | New Atlantic Initiative | The New World Order Forum | Institute for Human Sciences/Institut für die Wissenschaften vom Menschen, Vienna, Austria, Patron | Among other appointments he is Chairman of Weidenfeld & Nicolson; President of the Institute for Strategic Dialogue; Director of Cheyne Capital Management; Honorary Chairman, Board of Governors, Ben-Gurion University of the Negev; Board Member of Herbert Quandt Foundation Bad Homburg, Consultant to the Bertelsmann Foundation and columnist for Die Welt and Welt am Sonntag (Berlin). | MEMRI - Board of Advisors | Israel, Britain and the Commonwealth Association - Honorary Member