| # | Company name | Role | # of Projects |
|---|---|---|---|
| 1 | Baltijos Brasta UAB | internal wall supplier | 7 |
| 2 | Bar Meidan | internal wall supplier | 1 |
| 3 | Braun Gerhardt Trennsysteme GmbH | internal wall supplier | 1 |
| 4 | British Gypsum | internal wall supplier | 1 |
| 5 | C.O. Peterson Company | internal wall supplier | 1 |
| 6 | Corporación HCR | internal wall supplier | 6 |
| 7 | Deko Partitions Ltd | internal wall supplier | 7 |
| 8 | Fabryka Materiałów Izolacyjnych "Orłoróg" | internal wall supplier | 1 |
| 9 | Guangzhou Willstrong Building Material Co. Ltd. | internal wall supplier | 0 |
| 10 | Gyproc AB | internal wall supplier | 4 |
| 11 | Iberplaco | internal wall supplier | 2 |
| 12 | Incopre | internal wall supplier | 0 |
| 13 | Indianapolis Woodworking, Inc. | internal wall supplier | 0 |
| 14 | Interesta j.v. Sp. z o.o. | internal wall supplier | 0 |
| 15 | Interiorismo del Sur, S.L. | internal wall supplier | 1 |
| 16 | Knauf España | internal wall supplier | 3 |
| 17 | Knauf Gips KG | internal wall supplier | 3 |
| 18 | Knauf Sp. z o.o. | internal wall supplier | 5 |
| 19 | Kungsmontage Entreprenad AB | internal wall supplier | 3 |
| 20 | Mangini Stefano srl | internal wall supplier | 0 |