| # | Company name | Role | # of projects |
|---|---|---|---|
| 1 | J M Graham Assoc | General contractor | 2 |
| 2 | Jagdish Patel PE | Structural engineering | 0 |
| 3 | John Flath | Architect | 1 |
| 4 | John Swint/keystone Design Associates | Architect | 1 |
| 5 | Johnson & Mape Construction Co. | General contractor | 2 |
| 6 | Joseph Truxaw and Associates | Civil engineering | 2 |