| IDSI | Illinois Data Science Initiative 
| Others |
| IDSI | Imaging Diagnostic Systems Inc
| Others |
| IDSI | Imaging Diagnostic Systems, Inc.
| Others |
| IDSI | Immersive Display Solutions Inc
| Others |
| IDSI | Infectious Diseases Society of Ireland
| Others |
| IDSI | Institute for Development and Social Initiatives
| Others |
| IDSI | Integrated Data Systems Inc
| Others |
| IDSI | Integrative Data Science Initiative
| Others |
| IDSI | Integrity Defense Services Inc
| Others |
| IDSI | Intelligence Dual Sequential Ignition
| Others |
| IDSI | Intelligent Decision Systems Inc
| Others |
| IDSI | Intelligent Decision Systems, Inc.
| Others |
| IDSI | Intelligent Dual and Sequential Injection
| Others |
| IDSI | Intelligent Dual Sequential Ignition
| Others |
| IDSI | Interactive Data Services Inc
| Others |
| IDSI | Interlocking Deck Systems International
| Others |
| IDSI | International Decision Support Initiative
| Others |
| IDSI | International Development Summer Institute
| Others |
| IDSI | Involuntary Deviate Sexual Intercourse
| Others |
| IDSI | is defined as Involuntary
| Others |