| # | Company name | Role | # of projects |
|---|---|---|---|
| 61 | Verval Ltée. | Window installation | 1 |
| 62 | W-T Industries, Inc. | Window installation | 0 |
| 63 | W.L. Hall Company | Window installation | 0 |
| 64 | Whitestone Construction Corporation | Window installation | 1 |
| 65 | Wiegand Fensterbau | Window installation | 1 |
| 66 | Williams & Williams (Eastern) Ltd. | Window installation | 1 |
| 67 | Window People Co. LLC | Window installation | 1 |
| 68 | Woodbridge Glass, Inc. | Window installation | 4 |