Madrid has been establishing relationships with other cities from all other the world for decades, with the aim of beefing up the participation and image Madrid has for al lof them. This cooperation materialize in institutional visits, receptions, work programs for official delegations, information and experiences exchange, etc.

This is the list of cities Madrid has established agreements or treaties with:

• Praia: Memorandum of Understanding, march 2019

• Moscow: Declaration of Intentions, december 2018

• Lumbini: Memorandum of Understanding, november 2018

• Esmontañas: Treaty Cooperation, november 2018

• Bucharest: Memorandum of Understanding, november 2018

• Berlin: Memorandum of Understanding, november 2018

• Santo Domingo: Declaration of Intentions, october 2018

• Tegucigalpa: Memorandum of Understanding, april 2018

• San Jose: Memorandum of Understanding, april 2018

• Asuncion: Memorandum of Understanding, april 2018

• Chongqing: Memorandum of Understanding, april 2018

• Guatemala: Memorandum of Understanding, april 2018

• Kathmandu: Memorandum of Cooperation, february 2018

• Bogota: Declaration of Intentions, december 2017

• Guadalajara: Memorandum of Cooperation, november 2017

• Mexico: Memorandum of Cooperation, november 2017

• Quito: Memorandum of Cooperation, june 2017

• Buenos Aires: Memorandum of Cooperation, may 2017

• México: Memorandum related to the loan of Casa México, december 2016

• San Salvador: Declaration of Intentions, october 2016

• Paris: Declaration of Intentions, september 2016

• Asuncion: Declaration of Intentions, june 2016

• Brasilia: Declaration of Intentions, june 2016

• Guatemala: Declaration of Intentions, june 2016

• Lima: Declaration of Intentions, june 2016

• Mexico: Declaration of Intentions, june 2016

• Panama: Declaration of Intentions, june 2016

• Quito: Declaration of Intentions, june 2016

• San Jose de Costa Rica: Declaration of Intentions, june 2016

• Sucre: Declaration of Intentions, june 2016

• Tegucigalpa: Declaration of Intentions, june 2016

• La Paz: Memorandum of Cooperation, june 2016

• Montevideo: Memorandum of Cooperation, january 2016

• Miami/Daof: Declaration Cooperación related to Arts, Culture and Tourism, april 2015                                                          

• Miami: Agreement of Hermanamiento, june 2014

• Asuncion: Declaration related to Technical Cooperation, november 2012

• Beijing: Agreement of Cooperation, september 2011

• Berlin: Agreement Cooperación related to Racism, february 2011

• Panama: Agreement of Cooperation, january 2011

• Lima: Treaty related to urban transport, september 2009

• Buenos Aires: Agreement of Cooperation, september 2008

• Buenos Aires: Protocol Cooperation related to Emergencies, july 2008

• Buenos Aires: Intentions Letter related to Emergencies, november 2007

• Moscow: Memorandum of Cooperation, september 2007Abu 

• Dhabi: Agreement of Twinning, march 2007

• Sarajevo: Agreement of Twinning, march 2007

• Moscow: Protocol of Cooperation, may 2006

• Manila: Agreement of Twinning, december 2005

• Quito: Treaty Cooperation related to MIgrations, december 2005

• Beijing: Declaration of Intentions, july 2005

• Buenos Aires: Protocol Cooperation related to Risk, june 2005

• Rome: Declaration of Intentions, november 2004

• Santiago de Chile: Agreement of Cooperation related to Culture, may 2003

• San Jose de Costa Rica: Agreement of Cooperation related to Police, february 2003

• Montevideo: Declaration of Intentions, march 2002

• Budapest: Declaration of Intentions, february 2002

• Rio de Janeiro: Letter of Intentions, july 2000

• Paris: Agreement of Friendship and Cooperation, march 2000

• Buenos Aires: Letter of Intentions, june 1998

• Lima: Treaty Cooperation related to living places, june 1998

• Moscow: Treaty of Friendship and Cooperation, june 1997

• Moscow: Joint Declaration, february 1997

• Sofia: Declaration of Intentions, february 1994

• Lisbon: Protocol of Cooperation related to Consmuption, march 1992

• San Jose de Costa Rica: Treaty of Cooperation related to Police, march 1991

• Santiago de Chile: Agreement of Cooperation and Friendship, march 1991

• Prague: Agreement of Friendship and Cooperation, october 1989

• Malabo: Agreement of Twinning, april 1989

• Bordeaux: Protocol of Cooperation, january 1989

• Tripoli: Act of Twinning, december 1988

• Berlin: Agreement of Friendship and Cooperation, november 1988

• Havana: Agreement of Friendship and Cooperation, september 1988

• Rabat: Twinning Act Program Aplication, september 1988

• Rabat: Act of Twinning, may 1988

• Montevideo: Agreement of Friendship and Cooperation, november 1987

• Lima: Agreement of Cooperation, november 1987

• Quito: Act of Intentions, july 1987

• Manila: Agreement of Friendship and Cooperation, june 1987

• San Jose de Costa Rica: Treaty of Friendship and Cooperation, january 1987

• Nouakchott: Agreement of Twinning, november 1986

• San Jose de Costa Rica: Treaty of Friendship and Cooperation, november 1986

• Buenos Aires: Treaty of Friendship and Cooperation, july 1986

• Rome: Agreement of Friendship and Cooperation, july 1986

• Nouakchott: Declaration of Intentions, december 1985

• Beijing: Agreement of Friendship and Cooperation, september 1985

• Lisbon: Agreement for Twinning Development, january 1985

• Brussels: Agreement of Friendship and Cooperation, march 1984

• Prague: Declaration of Intentions, february 1984

• Bourdeaux: Agreement of Twinning, january 1984

• Berlin: Agreement of Cooperation and Friendship, november 1983

• Mexico: Agreement of Cooperation, november 1983

• Asunción, Bogota, Buenos Aires, Caracas, Guatemala, Havana, La Paz, Lima, Lisbon, Managua, Mexico, Montevideo, Panama, Quito, Rio de Janeiro, San Jose de Costa Rica, San Juan de Puerto Rico, San Salvador, Santiago de Chile, Santo Domingo, Tegucigalpa: Multiple Twinning Declaration, october 1982

• Havana: Agreement of Intentions, october 1982

• Santo Domingo: Ratification of Twinning, october 1982

• New York: Agreement of Twinning, january 1982

• Tripoli: Treaty of Cooperation and Friendship, june 1981

• Belgrade: Treaty of Cooperation and Friendship, may 1981

• Warsaw: Agreement of Cooperation, january 1981

• Panama: Agreement of Twinning, december 1980

• Quito: Joint Declaration, june 1980

• Moscow: Protocol of Cooperation, december 1979