| ITDA | Illinois Technology Development Alliance 
| Others |
| ITDA | Independent Taxi Drivers Association
| Others |
| ITDA | Information Technology Development Agency
| Others |
| ITDA | Innovation and Technical Design Authority
| Others |
| ITDA | Integrated Tactical Decision Aid
| Others |
| ITDA | Integrated Tribal Development Agency
| Others |
| ITDA | Integrated Tribal Development Authority
| Others |
| ITDA | Intentional Tribal Destruction Agency
| Others |
| ITDA | Interest, Tax, Depreciation & Amortization
| Others |
| ITDA | Internal Trade Development Authority
| Others |
| ITDA | International Technical Diving Agency
| Others |
| ITDA | International Theatre Design Archive
| Others |
| ITDA | International Training and Development Academy
| Others |