RAIOs
| Organization | Description | Region | Member States | Website |
| BAGAIA | Banjul Accord Group Accident Investigation Agency | Africa | Cabo Verde, Gambia, Ghana, Guinea, Liberia, Nigeria, Sierra Leone | Website |
| IAC | Interstate Aviation Committee | Europe | Armenia; Azerbaijan; Belarus; Kazakhstan; Kyrgyzstan, Tajikistan, Turkmenistan, Russian Federation | Website |
| Investigation Cooperation Mechanisms | ||||
| Organization | Description | Region | Member States | Website |
| ARCM-MENA | Middle East and North African States | Middle East & North Africa | Djibouti, Iran, Iraq, Jordan, Kuwait, Libya, Mauritania, Morocco, Oman, Palestine, Qatar, Saudi Arabia, Sudan, UAE, Yemen | |
| ARCM-SAM | AIG Regional Cooperation Mechanism (ARCM) | South America | Argentina, Bolivia, Brazil, Colombia, Chile, Ecuador, Guyana, Panama, Paraguay, Peru, Uruguay, Suriname and Venezuela. SPECIAL OBSERVERS: Dominican Republic, Cuba, BEA, NTSB and the Caribbean Aviation Safety and Security Oversight System (CASSOS) | |
| ENCASIA | European Network of Civil Aviation Safety Investigation Authorities, created by Article 7 of Regulation (EU) No 996/2010 | Europe | Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, The Netherlands, Poland, Portugal, Romania, Slovak Republic, Republic of Slovenia, Spain, Sweden + Observers: Iceland, Norway, Kosovo (UNSCR 1244/1999) and EASA | Website |
| GRIAA | Regional Group for Air Accidents Investigation | Central America | Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua. | Website |