| Sr# | Company | Standard | Certificate Number |
| 211 | RUK Construction Company | ISO 9001:2008 | 100CN143721039 |
| 210 | Tatweer Co. Al-Mutamayyiza For Ready Mix Concrete and Cement Products | OHSAS 18001:2007 | 300CN140371033 |
| 209 | Tatweer Co. Al-Mutamayyiza For Ready Mix Concrete and Cement Products | ISO 9001:2008 | 100CN143741031 |
| 208 | Sky Gulf Trading & Contracting Co. | ISO 14001:2004 | SA29 - SAU010 |
| 207 | Industrial Storage Trading Est. | ISO 14001:2004 | SA26 - SAU005 |