We currently have 104 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 Luleå, Sweden
32. City of Matosinhos, Portugal
33. City of Medellín, Colombia
34. City of Montréal, Quebec, Canada
35. City of Santa Rosa, California, United States
36. City of West Hollywood, California, United States
37. Conference of Peripheral Maritime Regions (CPMR) – Europe (regional, covers multiple countries)
38. Distrito Central, Honduras
39. Fortaleza, Brazil
40. Goicoechea, Costa Rica
41. Government of Catalonia, Spain
42. Government of Quebec, Canada
43. Goyang Special City, South Korea
44. Jackson, Mississippi, United States
45. Jackson, Wyoming, United States
46. Kampala City, Uganda
47. KISUMU, Poverty Transition Initiative, Kenya
48. Key West, Florida, United States
49. La Crosse, Wisconsin, United States
50. Lagos City, Nigeria
51. Mashhad, Islamic Republic of Iran
52. MedCities
53. Miami, Florida, United States
54. Mississippi River Cities & Towns Initiative (MRCTI)
55. Municipality of Walvis Bay, Namibia
56. Nansana, Waisko District, Uganda
57. Navas de San Juan, Jaén, Spain
58. Odun State, Nigeria
59. Ocean Cities Network – Global
60. Provincia de Arauca, Colombia
61. Provincia de Atlántico, Colombia
62. Provincia de Buenos Aires, Argentina
63. Provincia de Boyacá, Colombia
64. Provincia de Casanare, Colombia
65. Provincia de Cauca, Colombia
66. Provincia de César, Colombia
67.Provincia de Córdoba, Argentina
67. Provincia de Chocó, Colombia
68. Provincia de Guaviare, Colombia
69. Provincia de Imbabura, Ecuador
70. Provincia de Jujuy, Argentina
71. Provincia de La Guajira, Colombia
72. Provincia de Meta, Colombia
73. Provincia de Nariño, Colombia
74. Provincia de Putumayo, Colombia
75. Provincia de Sucre, Colombia
76. Provincia de Valle del Cauca, Colombia
77. Provincia de Vichada, Colombia
78. Renca, Santiago Metropolitan Region, Chile
79. Salvador City Hall, Bahia, Brazil
80. Secrétaire général adjoint ONG ASP-AL-HERI – Regional
81. Seongnam City, South Korea
82. Silver Spring, Maryland, United States
83. State of Baja California, Mexico
84. State of Campeche, Mexico
85. State of Chiapas, Mexico
86. State of Chihuahua, Mexico
87. State of Colima, Mexico
88. State of Guanajuato, Mexico
89. State of Guerrero, Mexico
90. State of Jalisco, Mexico
91. State of Mexico, Mexico
92. State of Michoacán, Mexico
93. State of Morelos, Mexico
94. State of Nuevo León, Mexico
95. State of Rio de Janeiro, Brazil
96. State of San Luis Potosí, Mexico
97. State of Sonora, Mexico
98. State of Tamaulipas, Mexico
99. Tigray Development Association, Ethiopia
100. Turku, Finland
101. Unión Nacional de Gobiernos Locales de Costa Rica (UNGLC)
102. Valle del Cauca, Colombia
103. Zaria Metropolitan Development Authority, Nigeria
104. Zoueratte, Mauritania