| # | Company name | Role | # of projects |
|---|---|---|---|
| 1 | Halff Associates, Inc. | Civil engineering | 7 |
| 2 | Hall Plating Company | Client | 1 |
| 3 | Hammitt & Dearmin | Mechanical engineering | 0 |
| 4 | Harish Koolwal MD | Client | 1 |
| 5 | Haus Residential & Commercial | General contractor | 2 |
| 6 | Horacio Salinas | 0 |