United States of America
Last update: November 27, 2005
| Party | Abbr. | Publications | Contact | Ideol. | Internat. | Elections | other | |
| Parl. '04 | Pres. '04 | |||||||
| Action IWA | anar. | ex-AIT | - | - | f. 1999 as split from WSA | |||
| African People's Socialist Party auxiliary organization | APSP | The Burning Spear | black rad. left. nat. | - | - | f. 1972, led by Omali Yeshitali | ||
| All-African People's Revolutionary Party local group | AAPRP | black left. nat. | - | - | f. 1972 | |||
| Alliance Marxist-Leninist (North America) | Alliance | stal. | ISML | - | - | f. 1989 | ||
| American Indian Movement - Grand Governing Council | AIM-GGC | indian nat. | - | - | f. 1993 as split from other AIM, led by Vernon Bellecourt | |||
| American Indian Movement - International Federation of Autonomous Chapters | AIM-IFAC | indian left. nat. | - | - | f. 1968, led by Russell Means | |||
| Anarchist Communitarian Network | anar. | - | - | f. 2001 | ||||
| Anarchist People of Color | anar. | - | - | |||||
| Arissa | rad. left. | - | - | |||||
| Atlantic Anarchist Circle other page | - | - | ||||||
| Barrio Union (Unión del Barrio) | La Verdad | chicano left. nat. | - | - | f. 1981 | |||
| Bay Area Anarchist Communists | anar. com. | - | - | f. 2003 | ||||
| Black Autonomy Network of Community Organizers | BANCO | anar. | - | - | ||||
| Black Radical Congress | BRC | black rad. left. nat. | - | - | f. 1998 | |||
| Bolshevik Tendency | Tel. +1-510-2782971 | tro. | IBT | - | - | f. 1982 as split from Spartacist League | ||
| Bring the Ruckus | anar. com. | - | - | f. 1997 | ||||
| Committee for a Unified Independent Party / International Workers Party unofficial | CUIP/IWP | black nat. | - | - | f. 1979 as New Alliance Party, led by Fred Newman | |||
| Committees of Correspondence for Democracy and Socialism | CCDS | Corresponder, Dialogue & Initiative | ex-com., left. soc. | - | - | f. 1991 mainly as split from CPUSA | ||
| Communist Party USA | CPUSA | People's Weekly World, Political Affairs | com. | ex-WMR | - | supported Dem. Party | f. 1919, led by Sam Webb | |
| Communist Voice Organization | Communist Voice, Struggle | ex-mao. | - | - | f. 1995 as split from Chicago Workers' Voice Group | |||
| Communist Workers Organization | CWO | tro. | - | - | f. 2002 | |||
| December 12th Movement | Arm the Masses | black rad. left. nat. | - | - | led by Omowale Clay | |||
| Democratic Socialists of America | DSA | Democratic Left | left. soc. | SI | on list of Democratic Party | - | f. 1983, active in Democratic Party | |
| Echanges et Mouvement | left. com. | - | - | |||||
| Federation of Northwest Anarchist Communists | FNAC | anar. com. | - | - | f. 2002 | |||
| Federation of Revolutionary Anarchist Collectives | FRAC | anar. | - | - | f. 2002 | |||
| Freedom Road Socialist Organization [Fight Back] | FRSO | Fight Back | stal. | ICS | - | - | f. 1999 as split from other FRSO | |
| Freedom Road Socialist Organization [Freedom Road] | FRSO | Freedom Road | ex-mao., stal. | ICS | - | - | f. 1985 | |
| Freedom Socialist Party | FSP | The Freedom Socialist | tro. | FS | - | supported SPUSA, SWP and WWP | f. 1964 as split from SWP | |
| Great Plains Anarchist Network | anar. | |||||||
| Green Party of the United States other page | GP-US | Greensweek, Greenpages | green | 0.30% | 0.098% | f. 1996 as split from GPUSA | ||
| The Green Alliance | left. green | - | - | f. 2002 | ||||
| Independent Progressive Politics Network | IPPN | Independent Politics News | left. soc. | - | - | f. 1995, alliance | ||
| Industrial Workers of the World | IWW | Industrial Worker | anar. syn. | IWW | - | - | f. 1905 | |
| International Communist Current | ICC | Internationalism | left. com. | ICC | - | - | ||
| International Socialist Organization | ISO | Socialist Worker, International Socialist Review | tro. | ex-IS | - | - | f. 1977 | |
| Internationalist Group | Internationalist | tro. | LFI | - | - | f. 1996 as split from Spartacist League | ||
| Internationalist Perspective | Internationalist Perspective | left. com. | - | - | f. 1986 as split from ICC | |||
| Internationalist Workers' Group other page | Internationalist Notes | left. com. | IBRP | - | - | f. 2002 | ||
| Labor Party | Labor Party Press | left. soc. | - | - | f. 1996, led by Mark Dudzic | |||
| Labor Standard | Labor Standard | tro. | close to USFI | - | - | f. 1998, partly active inside Solidarity | ||
| Labor's Militant Voice | LMV | Labor's Militant Voice | tro. | - | - | f. 1998 as split from Labor Militant | ||
| League for the Revolutionary Party | LRP | Proletarian Revolution | tro. | COFI | - | - | f. 1976 | |
| League of Revolutionaries for a New America | People's Tribune/Tribuno del Pueblo | ex-mao. | - | - | f. 1997, formerly the Communist Labor Party | |||
| Left Green Network | left. green | - | - | f. 1989 | ||||
| Left Party | Frontlines | tro. | CIR | - | - | f. 2002 as split from Socialist Alternative | ||
| Left Turn | Left Turn | tro. | ex-IS | - | - | f. 2001 as split from ISO | ||
| Liberty Union Party | rad. left. | 0.0027% | 0.00022% | f. mid-1990s, exists in Vermont | ||||
| Maoist Internationalist Movement | MIM | MIM Notes, Maoist Sojouner | mao. | - | - | f. 1983 | ||
| Marxist-Leninist Organizer | stal. | - | - | |||||
| National Black United Front | NBUF | Frontpage | black left. nat. | - | - | f. 1980, alliance | ||
| New Afrikan Liberation Front | NALF | Taion Time | black rad. left. nat. | - | - | f. 1995, led by Herman Ferguson | ||
| New Afrikan People's Organization | NAPO | By any means necessary | black rad. left. nat. | - | - | f. 1984, led by Chokwe Lumumba | ||
| New Democracy | New Democracy Newsletter | - | - | |||||
| New Party | left. soc. | - | f. 1991 | |||||
| News & Letters Committees | News & Letters | ex-tro., marx. | MH | - | - | f. 1955 | ||
| Northeastern Federation of Anarchist Communists | NEFAC | The Northeastern Anarchist, Ruptures, Barricada | anar. com. | ILS | - | - | f. 2000 | |
| Organizing Committee to form the Communist Party USA (Marxist-Leninist) | OCCPUSA(ML) | Proletariat, Labor's Champion, | mao. | - | - | f. 1983 | ||
| Pan-African Revolutionary Socialist Party | black left. nat. | - | - | f. 1983 | ||||
| Party for Socialism and Liberation | PSL | Socialism and Liberation | rad. left. | - | - | f. 2004 as split from WWP | ||
| Peace and Freedom Party | PFP | Partisan | left. soc. | 0.026% | 0.023% | f. 1967, many tendencies | ||
| Prairie Fire Organizing Committee | PFOC | Breaktrough | rad. left. | - | - | f. 1974 | ||
| Progressive Labor Party other page | PLP | Challenge-Desafío-Le Defí | mao. | - | - | f. 1965 | ||
| Progressive ProAction Party | led by Mark A. Dotz Jr. | |||||||
| Ray O. Light Group | mao. | ICS, ICMLPO[M] | - | - | ||||
| Red and Anarchist Action Network | Praxis Journal, RAAN-Network News | anar. com. | - | - | f. 2002 | |||
| Republic of New Afrika | RNA | The New Afrikan | ||||||