| Acronym | Definition |
|---|
| GBTC➣Greater Boston Track Club (Boston, MA) |
| GBTC➣Greater Baltimore Technology Council |
| GBTC➣Greater Bethlehem Temple Church (Mississippi) |
| GBTC➣Green Building Tax Credit (New York) |
| GBTC➣Georgian Banking Training Center (Georgia) |
| GBTC➣Great Big Theatre Company (Ontario, Canada) |
| GBTC➣Greater Buffalo Track Club (est. 1980; Buffalo, NY) |
| GBTC➣Glen Burnie Theatre Company (Glen Burnie, MD) |