Socialist Appeal was the British section of the International Marxist Tendency (IMT), founded in 1992 alongside the IMT by supporters of Ted Grant and Alan Woods after they were expelled from the Militant tendency of the Labour Party. In 2024 the Great Britain-based elements of the IMT were relaunched as the Revolutionary Communist Party.
Scottish Militant Labour (SML) was a Trotskyist political party operating in Scotland for most of the 1990s and was part of the Committee for a Workers' International. It later became known as the International Socialist Movement, which has since dissolved.
The Socialist Party is a political party in Ireland, active in both the Republic of Ireland and Northern Ireland. Internationally, it is affiliated to the Trotskyist International Socialist Alternative. The party has been involved in various populist campaigns including the Anti-Bin Tax Campaign and the Campaign Against Home and Water Taxes. Members of the party were jailed for their part in the former, while members have been arrested for their role in the latter. It had a seat in the European Parliament from 2009 to 2014. In 2015, the party received state funding of €132,000.
Peter Taaffe is a British Marxist Trotskyist political activist and journalist. He was the general secretary of the Socialist Party of England and Wales from its founding until 2020 and was a member of the International Executive Committee of the Committee for a Workers' International (CWI).
The League for Socialist Action (LSA) was the premier Trotskyist organization in Canada for much of the 20th century. Throughout its history the LSA went through many different names and iterations. In chronological order it was known as: the International Left Opposition (Trotskyist) of Canada, the Workers Party of Canada, the Socialist Policy Group, the Socialist Workers League, the Revolutionary Workers Party, The Club, the Socialist Education League, and the League for Socialist Action.
Socialist Alternative is a Trotskyist political party in Sweden. SAV is the Swedish section of International Socialist Alternative (ISA). SAV was called Arbetarförbundet Offensiv up until 1997 and the Socialist Justice Party until 2023. The group developed out of the Offensiv group that had practiced entryism in the Swedish Social Democratic Party during the 1970s and 1980s.
The Left Fraction, sometimes calling itself the Left Fraction, British Section of the Fourth International , was a Trotskyist organisation in the United Kingdom.
The Labour Party Young Socialists (LPYS) was the youth section of the Labour Party in Britain from 1965 until 1991. In the 1980s, it had around 600 branches, 2,000 delegates at its national conferences and published a monthly newspaper, Left, later Socialist Youth. From the early 1970s, it was led by members of Militant.
The International Marxist Group (IMG) was a Trotskyist group in Britain between 1968 and 1982. It was the British Section of the Fourth International. It had around 1,000 members and supporters in the late 1970s. In 1980, it had 682 members; by 1982, when it changed its name to the Socialist League, membership had fallen to 534.
The Militant tendency, or Militant, was a Trotskyist group in the British Labour Party, organised around the Militant newspaper, which launched in 1964. According to Michael Crick, its politics were based on the thoughts of Karl Marx, Friedrich Engels, Vladimir Lenin, Leon Trotsky and "virtually nobody else".
The Alliance for Workers' Liberty (AWL), also known as Workers' Liberty, is a Trotskyist group in Britain and Australia, which has been identified with the theorist Sean Matgamna throughout its history. It publishes the newspaper Solidarity.
The Revolutionary Communist International (RCI) is a Trotskyist political international. It was founded as the Committee for a Marxist International by British-based South African political theorist Ted Grant and his supporters after they broke with the Committee for a Workers' International in 1992, and was subsequently renamed the International Marxist Tendency (IMT) in 2004 before adopting its current name in June 2024. The organization's website, Marxist.com or In Defence of Marxism, is edited by Alan Woods. The site is multilingual, and publishes international current affairs articles written from a Marxist perspective, as well as many historical and theoretical articles.
The first Revolutionary Socialist League (RSL) was formed in early 1938 by the merger of the Marxist League led by Harry Wicks and the Marxist Group led by C. L. R. James.
The Revolutionary Communist Party was a British Trotskyist group, formed in 1944 and active until 1949, which published the newspaper Socialist Appeal and a theoretical journal, Workers International News. The party was the ancestor of the three main currents of British Trotskyism: Gerry Healy's Workers Revolutionary Party, Ted Grant's Militant and Tony Cliff's Socialist Workers Party.
The Revolutionary Socialist League (RSL) was a Trotskyist group in Britain which existed from 1956 until 1964 when it became Militant, an entryist group in the Labour Party.
The Pathfinder tendency is the unofficial name of a group of historically Trotskyist organizations that cooperate politically and organizationally with the Socialist Workers Party of the United States and support its solidarity with the Cuban Revolution and the Communist Party of Cuba.
The Militant is an international socialist newsweekly connected to the Socialist Workers Party (SWP) and the Pathfinder Press. It is published in the United States and distributed in other countries such as Canada, the United Kingdom, Australia, France, Sweden, Iceland, and New Zealand.
The Socialist Workers Party (SWP) is a communist party in the United States. The SWP began as a group which, because it supported Leon Trotsky over Soviet leader Joseph Stalin, was expelled from the Communist Party USA. Since the 1930s, it has published The Militant as a weekly newspaper. It also maintains Pathfinder Press.
Edward Grant was a South African Trotskyist who spent most of his adult life in Britain. He was a founding member of the group Militant and later Socialist Appeal.
