IOM’s structure is highly decentralized to enable the Organization, the capacity to deliver an ever-increasing number and diversity of projects at the request of its Member States. IOM’s Field structure is composed of:

  • 9 Regional Offices, which formulate regional strategies and plans of action, and to provide programmatic and administrative support to the countries within their regions. These Regional Offices are in Dakar, Senegal; Nairobi, Kenya; Cairo, Egypt; Pretoria, South Africa; San José, Costa Rica; Buenos Aires, Argentina; Bangkok, Thailand; Brussels, Belgium; and Vienna, Austria.

  • 2 Special Liaison Offices which strengthen relations with specific multilateral bodies, diplomatic missions, and non-governmental organizations. These offices are located in New York, United States of America, and Addis Ababa, Ethiopia.

  • 2 Administrative Centres (Panama and Manila), which provide core support in the areas of information technology and administrative services to IOM’s network of offices.

  • 5 Country Offices with Coordinating Functions that have the additional responsibility of ensuring that migratory realities within a defined cluster of countries are taken into account in programmatic activities of the region. The Country Offices with Coordinating Functions are in Canberra, Australia (covering the Pacific); Rome, Italy (covering the Mediterranean); Astana, Kazakhstan (covering Central Asia); and Georgetown, Guyana (covering the Caribbean). A coordinating function for the cluster of countries in South Asia also exists in the Regional Office in Bangkok.

  • In addition, 4 Country Offices with Resources Mobilization Functions have the additional responsibility of resource mobilization by assisting in fundraising activities and advising on fundraising policies, priorities and procedures. These offices are located in Tokyo, Japan; Berlin, Germany; Helsinki, Finland; and Washington, D.C., United States of America.

  • Country Offices and sub-offices, which implement a wide range of projects addressing specific migration needs.

  • The African Capacity Building Centre (ACBC), based in Tanzania, provides Africa-wide technical assistance in matters pertaining to migration and border management.

  • Global Migration Data Analysis Centre (GMDAC). The Centre is based in Berlin, Germany, and was established as IOM’s response to growing calls for comprehensive high-quality data on global migration trends.


It is used by IOM (similar to activity-based costing), whereby staff and office costs associated with implementing a project are charged to projects through a time allocation concept referred to as projectization. Every activity in IOM is assigned a distinct project code. Every project is managed by a project manager to ensure that projects are monitored in a responsible, transparent and efficient manner.

Manila and Panama Administrative Centres

To achieve efficiencies and manage growth, IOM has embarked on an exercise to transfer certain functions from Headquarters and other high-cost locations to lower-cost locations. The Manila and Panama Administrative Centres provide support in the areas of finance, information technology, staff security, project tracking, health and insurance, and so on. Each Administrative Centre covers different geographical regions for most of its functional areas: The Panama Administrative Centre provides support to the Americas and the Manila Administrative Centre provides support to the rest of the world.

Lowest Rate of Administrative Support

To cover its indirect costs, IOM charges a standard 7 percent on total costs of projects for administrative support. IOM prioritizes cost efficiency in the implementation of projects.

IOM General Information Folder

IOM Organizational Structure