| Acronym | Definition |
|---|
| SGNI | Societe Generale de Negoce International (French: International General Trading Company) |
| SGNI | Schweizer Gesellschaft für Nachhaltige Immobilienwirtschaft (German: Swiss Society for Sustainable Real Estate; Switzerland) |
| SGNI | Society of Genealogists Northern Ireland (UK) |
| SGNI | Smart Grid Networking Infrastructure (workshop; est. 2010) |
| SGNI | Soluciones Globales de Negocio e Informática (Spanish: Global Business Solutions and Information; Mexico) |
| SGNI | Schützengesellschaft Neu-Isenburg (German shooting sports society) |
| SGNI | Service-Gesellschaft für Netzwerkmanagement und Informationstechnologien (German: Service Company for Network Management and Information Technology) |