| Sr# | Company | Standard | Certificate Number |
| 256 | Hussain Mohammad Al Shayookh General Cont Est | ISO 9001:2008 | 100CN144031148 |
| 255 | Al-Tauon Establishment (TANCO) | OHSAS 18001:2007 | 300CN140471168 |
| 254 | Al-Tauon Establishment (TANCO) | ISO 9001:2008 | 100CN144071156 |
| 253 | Madina Plastics & Paper Products Factory | ISO 14001:2004 | SAU020 |
| 252 | Madina Plastics & Paper Products Factory | ISO 9001:2008 | SAU019 |