We currently have 88 signatories:
1. ACR+ (Association of Cities and Regions for Sustainable Resource Management)
2. Asociación de ciudades capitales (ACC)
3. Asociación de residuos DS Latinoamericana – Latin America (regional)
4. Asociación Dominicana de Municipios del Este, Dominican Republic
5. Asociación Nacional de Autoridades Ambientales Estatal (ANAAE)
6. Asociación Mexicana de Oficinas de Asuntos Internacionales de los Estados (AMAIE)
7. AVF Germany
8. Baden-Württemberg, Germany
9. Blaine County, Idaho, United States
10. British Columbia, Canada
11. Cámara Municipal de Guimarães, Braga District, Portugal
12. Cantón de Buenos Aires, Costa Rica
13. Cantón de El Guarco, Costa Rica
14. Cantón de Flores, Costa Rica
15. Cantón de Jiménez, Costa Rica
16. Cantón de La Unión, Costa Rica
17. Cantón de Oreamuno, Costa Rica
18. Cantón de Paquera, Costa Rica
19. Cantón de Puriscal, Costa Rica
20. Cantón de San José, Costa Rica
21. Cantón de Tibás, Costa Rica
22. Cantón de Tilarán, Costa Rica
23. Cape Coast, Ghana
24. Centre of Excellence in Disaster Management – Global
25. Chefchaouen City, Morocco
26. Med Network
27. City Government of Mati, Philippines
28. City of Ann Arbor, Michigan, United States
29. City of Boulder, Colorado, United States
30. City of Lansing, Michigan, United States
31. City of Matosinhos, Portugal
32. City of Medellín, Colombia
33. City of Montréal, Quebec, Canada
34. City of Santa Rosa, California, United States
35. City of West Hollywood, California, United States
36. Conference of Peripheral Maritime Regions (CPMR) – Europe (regional, covers multiple countries)
37. Distrito Central, Honduras
38. Fortaleza, Brazil
39. Goicoechea, Costa Rica
40. Government of Catalonia, Spain
41. Government of Quebec, Canada
42. Goyang Special City, South Korea
43. Jackson, Mississippi, United States
44. Jackson, Wyoming, United States
45. Kampala City, Uganda
46. KISUMU, Poverty Transition Initiative, Kenya
47. Key West, Florida, United States
48. La Crosse, Wisconsin, United States
49. Lagos City, Nigeria
50. Mashhad, Islamic Republic of Iran
51. MedCities
52. Miami, Florida, United States
53. Mississippi River Cities & Towns Initiative (MRCTI)
54. Municipality of Walvis Bay, Namibia
55. Nansana, Waisko District, Uganda
56. Navas de San Juan, Jaén, Spain
57. Odun State, Nigeria
58. Ocean Cities Network – Global
59. Provincia de Córdoba, Argentina
60. Provincia de Imbabura, Ecuador
61. Provincia de Jujuy, Argentina
62. Renca, Santiago Metropolitan Region, Chile
63. Salvador City Hall, Bahia, Brazil
64. Secrétaire général adjoint ONG ASP-AL-HERI – Regional
65. Seongnam City, South Korea
66. Silver Spring, Maryland, United States
67. State of Baja California, Mexico
68. State of Campeche, Mexico
69. State of Chiapas, Mexico
70. State of Chihuahua, Mexico
71. State of Colima, Mexico
72. State of Guanajuato, Mexico
73. State of Guerrero, Mexico
74. State of Jalisco, Mexico
75. State of Mexico, Mexico
76. State of Michoacán, Mexico
77. State of Morelos, Mexico
78. State of Nuevo León, Mexico
79. State of Rio de Janeiro, Brazil
80. State of San Luis Potosí, Mexico
81. State of Sonora, Mexico
82. State of Tamaulipas, Mexico
83.Tigray Development Association, Ethiopia
84. Turku, Finland
85. Unión Nacional de Gobiernos Locales de Costa Rica (UNGLC)
86. Valle del Cauca, Colombia
87. Zaria Metropolitan Development Authority, Nigeria
88. Zoueratte, Mauritania