| Company | Location |
|---|---|
| Grubb & Ellis Biotechnology Services Group | Denver, Colorado, United States |
| Grupo Antolin-Ingenieria, S.A. | Burgos, Spain |
| GSI Lumonics Inc. | Billerica, Massachusetts, United States |
| GT Solar Technologies | Merrimack, New Hampshire, United States |
| Guidant Corp. | Indianapolis, Indiana, United States |
| Gulf of Maine Research Institute | Portland, Maine, United States |
| GW Lab | Canoga Park, California, United States |
| Gyre Consulting | Tarzana, California, United States |
| Gyricon LLC | Ann Arbor, Michigan, United States |
| Gyros AB | Uppsala, Sweden |
