| Abbreviation | Definition |
|---|---|
| ISFD | Institute for Strategic Funding Development |
| ISFD | Islamic Solidarity Fund for Development |
| ISID | inclusive and sustainable industrial development |
| ISKO | International Society for Knowledge Organization |
| ISLAND | Internet Source for Learning and New Development |
| ISMD | International Society of Markets and Development |
| ISPD | Institute for School and Parish Development |
| ISRD | Institute for Sustainable Regional Development |
| ISSD | Integrated Seed Sector Development |
| ISSD | Intergrated Seed Sector Development |
| ISTD | Indian Society for Training and Development |
| ISWD | Instructional Systems and Workforce Development |
| ISWD | International Social Work in Development |
| ITBD | Institute for Technology and Business Development |
| ITBD | Institute of Technology Business Development |
| ITD | International Talent Development |
| ITD | Italian Thai Development |
| ITD | itiative Transportation and Development |
| ITDA | Illinois Technology Development Alliance |
| ITDA | Integrated Tribal Development Authority |