Aberdeen, United Kingdom | Jenny Laing and Douglas Lumsden

Bilbao, Spain | Juan Mari Aburto

Bologna, Italy | Virginio Merola

Bonn, Germany | Ashok Sridharan

Braga, Portugal | Ricardo Rio

Bratislava, Slovakia | Matúš Vallo

Bristol, United Kingdom | Marvin Rees

Buenos Aires, Argentina | Horacio Rodríguez Larreta

Busan, Korea | Oh Keo-don

Copenhagen, Denmark | Frank Jensen

Denver, USA | Michael Hancock

Dundee, United Kingdom | John Alexander

Düsseldorf, Germany | Thomas Geisel

Freetown, Sierra Leone | Yvonne Aki-Sawyerr

Fukuoka City, Japan | Sōichirō Takashima

Geneva, Switzerland | Esther Alder

Glasgow, United Kingdom | Susan Aitken

Hamburg, Germany | Peter Tschentscher

Highland, United Kingdom | Margaret Davidson

King County Executive, USA | Dow Constantine

Leipzig, Germany | Burkhard Jung

Lima, Peru | Alcalde Jorge Muñoz Wells

Lisbon, Portugal | Fernando Medina

Liverpool (Greater), United Kingdom | Steve Rotheram

Ljubljana, Slovenia | Zoran Janković

Los Angeles, USA | Eric Garcetti

Manchester (Greater), United Kingdom | Andy Burnham

Mannheim, Germany | Peter Kurz

Medellín, Colombia | Federico Gutiérrez

Milan, Italy | Giuseppe Sala

Montreal, Canada | Valérie Plante

New York, USA | Bill de Blasio

Oakland, USA | Libby Schaaf

Otsu, Japan | Naomi Koshi

Paris, France | Anne Hidalgo (Chair)

Perth and Kinross, United Kingdom | Murray Lyle

Philadelphia, USA | Jim Kenney

Porto, Portugal | Rui Moreira

Quillota, Chile | Luis Mella

Reykjavik, Iceland | Dagur Bergþóruson Eggertsson

Rio de Janeiro, Brazil | Marcelo Crivella

Rotterdam, Netherlands | Ahmed Aboutaleb

Saltillo, Mexico | Manolo Jiménez Salinas

San Jose, USA | Sam Liccardo

Santa Monica, USA | Gleam Davis

Seoul, Korea | Park Won-Soon

Seville, Spain | Juan Espadas Cejas

Sintra, Portugal | Basílio Horta

Stirling, United Kingdom | Scott Farmer

Stockholm, Sweden | Anna Konig Jerlmyr

Stockton, USA | Michael Tubbs

Suwon, Korea | Yeom Tae-Young

Tel Aviv-Yafo, Israel | Ron Huldai

Tbilisi, Georgia | Kakha Kaladze

Tokyo, Japan | Yuriko Koike

Toyama, Japan | Masashi Mori

Utrecht, Netherlands | Jan van Zanen

Viana do Castelo, Portugal | José Maria da Cunha Costa

Yokohama, Japan | Fumiko Hayashi