ATP International Series | International Monetary Fund | International Red Cross and Red Crescent Movement | ATP International Series Gold | International Space Station | Amnesty International | International Olympic Committee | BirdLife International | International Finance Corporation | International Organization for Standardization | International Telecommunication Union | International Criminal Court | One Day International | International Nonproprietary Name | International Labour Organization | International Civil Aviation Organization | International Boxing Federation | Toronto International Film Festival | International Atomic Energy Agency | International Maritime Organization | International Development Association | John F. Kennedy International Airport | Los Angeles International Airport | International Bank for Reconstruction and Development | International Court of Justice | International Fund for Agricultural Development | Rotary International | Marriott International | International Air Transport Association | Woodrow Wilson International Center for Scholars |
Hyppönen has been a member of the advisory board of IMPACT (International Multilateral Partnership Against Cyber Threats) since 2007 together with Yevgeny Kaspersky, Dr. Hamadoun Touré, Professor Fred Piper and John Thompson.