| Abbreviation | Definition |
|---|---|
| GLOB | Global Medical Technologies, Inc. |
| GLOG | Global Graphics SA |
| GLOI.OB | GlobalOptions Group, Inc. |
| GLOV | Global Venture Corporation |
| GLOV.PK | AHPC Holdings, Inc. |
| GLOW | Global Games Corporation |
| GLRKF | Glory, LTD. (delisted) |
| GLRO | Glen Rock State Bank of Pennsylvania |
| GLRSE | Global Outdoors, Inc. |
| GLUX | Great Lakes Aviation, LTD. |
| GLWB | Glow Bench Systems International |
| GLWP | Gulf West Property |
| GLWX | GalaxiWorld Limited |
| GLXIF | Glenex Industries, Inc. |
| GLXOF | Galaxy Online, Inc. |
| GLXY | Galaxy Enterprises, Inc. |
| GLYT | Genlyte Group, Inc. |
| GMAI | Greg Manning Auctions, Inc. |
| GMAIU | Greg Manning Auctions, Inc. (now GMAI) |
| GMCH | Gourmets Choice Coffee Company |