| IES | Ideal Educational Society 
| Others |
| IES | Idle Enrichment System
| Others |
| IES | Illuminating Engineering Society
| Others |
| IES | Illumination Engineering Society
| Others |
| IES | Imagery Exploitation System
| Others |
| IES | Imagery Exploration System
| Others |
| IES | In Eigener Sache
| Others |
| IES | Incoming e-Mail Solution
| Others |
| IES | Indian Economic Service
| Others |
| IES | Indian Education Society
| Others |
| IES | Indian Engineering Service
| Others |
| IES | Indian Engineering Services
| Others |
| IEs | Individual Experts
| Others |
| IES | Indoor Environmental Services
| Others |
| IES | Indrema Entertainment System
| Others |
| IES | Industrial Electronics Society
| Others |
| IES | Industrial Extension Service
| Others |
| IES | Industrias Eduardo Sal-Lari
| Others |
| IES | Industry Expansion Solutions
| Others |
| IES | Infantry Enhancement Suit
| Others |
| IES | Information Exchange System
| Others |
| IES | Inland Empire Section
| Others |
| IES | Innovative Engineering Systems
| Others |
| IES | Innovative Event Services
| Others |
| IES | Innovative Event Solutions
| Others |
| IES | Institute for Economic Stud
| Others |
| IES | Institute for Environmental Science
| Others |
| IES | Institute for European Studies
| Others |
| IES | Institute for Excellence in Sales
| Others |
| IES | Institute for Experimental Studies
| Others |
| IES | Institute for the Environment and Sustainability
| Others |
| IES | Institute of Economic Studies
| Others |
| IES | Institute of Economy Studies
| Others |
| IES | Institute of Ecosystem Studies
| Others |
| IES | Institute of Education Sciences
| Others |
| IES | Institute of Educational Sciences
| Others |
| IES | Institute of Environmental Sustainability
| Others |
| IES | Institute of European Stud
| Others |
| IES | Institution of Engineers Singapore
| Others |
| IES | Institution of Engineers, Singapore
| Others |
| IES | Instrumentation Electrical Services
| Others |
| IES | Integrated Earth Systems
| Others |
| IES | Integrated Electrical Services
| Others |
| IES | Integrated Enterprise Solutions
| Others |
| IES | Integrated Enterprise System
| Others |
| IES | Integrated Environmental Solutions
| Others |
| IES | Integrated Environmental Systems
| Others |
| IES | Integrated Eyewear System
| Others |
| IES | Integriertes Elektronik System
| Others |
| IES | Intelligence Evaluation Staff
| Others |
| IES | Intelligent and Evolutionary Systems
| Others |
| IES | Intelligent Emulation Switching
| Others |
| IES | Intelligent Evacuation System
| Others |
| IES | Intensive English Studies
| Others |
| IES | Inter Enterprise System
| Others |
| IES | Interior Exterior Specialists Construction Group, Inc.
| Others |
| IES | Internal Eliminated Sequence
| Others |
| IES | International Education for Students
| Others |
| IES | International Education Services
| Others |
| IES | International Educational Services
| Others |
| IES | International Educational Studies
| Others |
| IES | International Enescu Society
| Others |
| IES | International EPR Society
| Others |
| IES | International Equipment Solutions
| Others |
| IES | International Exchange Site
| Others |
| IES | Internet Enrollment Services
| Others |
| IES | Internet Escrow Services
| Others |
| IES | Internet Event Server
| Others |
| IES | Interstate Electronic Systems
| Others |
| IES | Intra-Europe Service
| Others |
| IES | Intrepid es
| Others |
| IES | Ion and Electron Sensor
| Others |