| IASE | Idaho Academy of Science and Engineering 
| Others |
| IASE | Ikasle Abertzale Sozialista Irakundee
| Others |
| IASE | Indirect Air Side Economizer
| Others |
| IASE | Information Assurance Support Enviroment
| Others |
| IASE | Information Assurance Support Environment
| Others |
| IASE | Institute for Advanced Science & Engineering
| Others |
| IASE | Institute for Advanced Systems Engineering
| Others |
| IASE | Institute of Advanced Studies in Education
| Others |
| IASE | Intermediate Advanced Spanish Exam
| Others |
| IASE | International Alliance in Service and Education
| Others |
| IASE | International Alternative Service Experience
| Others |
| IASE | International Association for Special Education
| Others |
| IASE | International Association for Statistical Education
| Others |
| IASE | International Association for Statistics Education
| Others |
| IASE | International Association of Service Evaluators
| Others |
| IASE | International Association of Space Entrepreneurs
| Others |
| IASE | International Association of Special Education
| Others |
| IASE | International Association of Sport Economists
| Others |
| IASE | International Association of Sports Economists
| Others |
| IASE | Internet Application Security Environment
| Others |
| IASE | Internet Authentication Service Extensions
| Others |
| IASE | Iowa Association of Safety Education
| Others |
| IASE | Irish Association of Supported Employment
| Others |