| # | Company name | Role | # of projects |
|---|---|---|---|
| 1 | Gatewest Construction | Client | 1 |
| 2 | GBS Company | Mechanical engineering | 1 |
| 3 | General American Life | Client | 1 |
| 4 | General Underground Fire Protection Inc. | Fire protection engineering | 1 |
| 5 | Giles Engineering Associates Inc | Engineering company | 2 |
| 6 | Gmc Construction | 0 | |
| 7 | Gpa Architecture | Architect | 1 |
| 8 | Great West Contractors Inc | General contractor | 5 |
| 9 | Growth Management Company | Client | 4 |
| 10 | Guardian Fire Protection Inc | Fire protection engineering | 1 |
| 11 | Gypsum Enterprises | General contractor | 0 |