| # | Company name | Role | # of projects |
|---|---|---|---|
| 21 | Layher AS | Scaffolding | 0 |
| 22 | Layher B.V. | Scaffolding | 0 |
| 23 | Layher del Pacifico S.A. | Scaffolding | 0 |
| 24 | Layher Gerüstsysteme GmbH | Scaffolding | 0 |
| 25 | Layher GmbH | Scaffolding | 0 |
| 26 | Layher Inc. | Scaffolding | 0 |
| 27 | Layher Kft. | Scaffolding | 0 |
| 28 | Layher Ltd | Scaffolding | 0 |
| 29 | Layher Ltd. | Scaffolding | 0 |
| 30 | Layher Pte. Ltd. | Scaffolding | 0 |
| 31 | Layher Pty Ltd Australia | Scaffolding | 0 |
| 32 | Layher S.A. | Scaffolding | 0 |
| 33 | Layher S.A.S. | Scaffolding | 0 |
| 34 | Layher Sistema de Andamios Ltda. | Scaffolding | 2 |
| 35 | Layher Sp. z o.o. | Scaffolding | 0 |
| 36 | Layher SRL | Scaffolding | 0 |
| 37 | Layher Sudamericana S.A. | Scaffolding | 0 |
| 38 | Mercury-Center Ltd | Scaffolding | 15 |
| 39 | Patent Scaffolding Company, Inc. | Scaffolding | 2 |
| 40 | PERI Cimbras y Andamios, S.A. de C.V. | Scaffolding | 7 |