| # | Company name | Role | # of Projects |
|---|---|---|---|
| 1 | AGS Contract Glazing Ltd. | window supplier | 1 |
| 2 | Air Louvers, Inc. | window supplier | 0 |
| 3 | Alcoa Arquitectura S.L. | window supplier | 1 |
| 4 | Alexco | window supplier | 3 |
| 5 | Allan Windows West | window supplier | 8 |
| 6 | Allan Window Systems | window supplier | 23 |
| 7 | Allied Windows Ltd. | window supplier | 1 |
| 8 | Alumiprime Windows | window supplier | 11 |
| 9 | Amsterdam Windows Inc. | window supplier | 0 |
| 10 | Andersen Corporation | window supplier | 2 |
| 11 | AOCM Menuiserie | window supplier | 1 |
| 12 | Arcadia Architectural Products | window supplier | 9 |
| 13 | A/S Korsør Glasværk | window supplier | 1 |
| 14 | Beaufort Secure Design Ltd | window supplier | 0 |
| 15 | Betton and Evans | window supplier | 1 |
| 16 | BORTOLETTO Serramenti Srl | window supplier | 0 |
| 17 | BTX Window Automation | window supplier | 1 |
| 18 | Canadian Crittall Metal Windows Ltd. | window supplier | 2 |
| 19 | Carroll Glass & Maintenance | window supplier | 1 |
| 20 | C E Kempe and Co. | window supplier | 2 |