| SIAC Construction Ltd – Head Office | |
| Knockmeenagh House | |
| Monastery Road | |
| Clondalkin | |
| Dublin 22 | |
| Ireland | |
| Eircode: D22 F6V2 |
| 00 353 (1) 4033111 | |
| info@siac.ie |
| SIAC Construction Ltd – Tuam Office | |
| Unit 24 | |
| N17 Business Park | |
| Galway Road | |
| Tuam | |
| Co. Galway | |
| Ireland | |
| Eircode: H54 DA39 |
| Tel: 00 353 (0) 93 28571 |
| SIAC (N.I.) Limited – Belfast Office | |
| 50 Bedford Street | |
| Belfast | |
| County Antrim | |
| Northern Ireland | |
| BT2 7FW |
| 00 44 28 9031 4949 |
| SIAC Bituminous Products Ltd | |
| Monastery Road | |
| Clondalkin | |
| Dublin 22 | |
| Ireland | |
| Eircode: D22 F8F5 |
| 00 353 (0) 1 459 3194 | |
| siacbp@siac.ie |
| SIAC Roofing & Cladding Ltd | |
| Doughcloyne Industrial Estate | |
| Sarsfield Road | |
| Wilton | |
| Cork | |
| Ireland | |
| Eircode: T12 N251 |
| 00 353 (21) 431 1322 | |
| rccdesign@siac.ie |
| VIAE Ltd | |
| Dolcain House | |
| Monastery Road | |
| Clondalkin | |
| Dublin 22 | |
| Ireland | |
| Eircode: D22 F8F5 |
| 00 353 (1) 403 3248 | |
| info@viae.ie |