| Abbreviation | Definition |
|---|---|
| GBIC | Greater Brownsville Incentives Corporation |
| GBIC | Greater Burlington Industrial Corporation |
| GBII | Guardians Brotherhood International Inc |
| GBIL | Gypcrete Building India Ltd |
| GBL | Green Biologics Ltd |
| GBL | Group Benefits Ltd |
| GBM | Gulf Business Machines |
| GBN | Gebruder Bing Nuremberg |
| GBO | Gilbert B Outhwaite |
| GBPC | Global Business Power Corp |
| GBPC | Global Business Power Corporation |
| GBPC | Grand Bahama Power Company |
| GBS | Gannon Broadcasting Systems, Inc. |
| GBS | Gavin Blair Safaris |
| GBS | Gottlieb, Bauernschmidt, and Straus |
| GBS | Great Body Shop |
| GBSC | Global Bondholder Services Corporation |
| GBSI | Gannon Broadcasting Systems, Inc. |
| GBSI | Global Building Systems Inc |
| GBSI | Goddard Business Solutions, Inc. |