| UIA | International Union of Lawyers 
| Others |
| UIA | Udruzenje Istoricara Automobilizma
| Others |
| UIA | Uganda Investment Authority
| Others |
| UIA | Ukraine International
| Others |
| UIA | Ukraine International Airlines
| Others |
| UIA | Ukrainian Internet Association
| Others |
| UIA | ULTIMATE Internet Access
| Others |
| UIA | Ultrasonic Industry Association
| Others |
| UIA | Ultrasonics Industry Association
| Others |
| UIA | Umts Integrity Algorithm
| Others |
| UIA | Uncovered Interest Arbitrage
| Others |
| UIA | Unemployed Insurance Agency
| Others |
| UIA | Unemployment Insurance Agency
| Others |
| UIA | Unemployment Insurance Agency's
| Others |
| UIA | Union Industrial Argentina
| Others |
| UIA | Union Internationale des Avocats
| Others |
| UIA | Union of International Associations
| Others |
| UIA | United Interfaith Action
| Others |
| UIA | United Inventors Association
| Others |
| UIA | United Israel Appeal
| Others |
| UIA | Universal Investment Agency
| Others |
| UIA | Universidad Ibero Americana
| Others |
| UIA | Universidad IberoAmericana
| Others |
| UIA | Universidad Internacional de las Americas
| Others |
| UIA | Universitetet i Agder
| Others |
| UIA | University Innovation Alliance
| Others |
| UIA | University Insurance Association
| Others |
| UIA | University Investors Association
| Others |
| UIA | Unmanaged Internet Architecture
| Others |
| UIA | Urban Innovative Actions
| Others |
| UIA | Urban Intelligent Assist
| Others |
| UIA | User Installed Application
| Others |
| UIA | User installed applications
| Others |
| UIA | User Interface Automation
| Others |
| UIA | User Issued Asset
| Others |