| Acronym | Definition |
|---|
| DSEi➣Defence & Security Equipment International (trade show; UK) |
| DSEi➣Defence Systems & Equipment International (exhibition & conference) |
| DSEi➣Division of State Employees' Insurance (Florida) |
| DSEi➣Direct Selling Educational Institute (Dubai, United Arab Emirates) |
| DSEi➣Dougherty Sprague Environmental, Inc. (Richardson, TX) |