GDSI
| Acronym | Definition |
|---|---|
| GDSI | Grinding & Dicing Services, Inc. (San Jose, CA) |
| GDSI | Global Digital Solutions, Inc. (communications) |
| GDSI | Geographic Decision Systems International (Honolulu, HI; geographic information systems; est. 1999) |
| GDSI | Galway Development Service International (est. 1991; Ireland) |