| Sr# | Company | Standard | Certificate Number |
| 501 | Haif Ready Mix Concrete, Jeddah | ISO 14001:2004 | 500CN150551738 |
| 500 | Haif Ready Mix Concrete, Jeddah | ISO 9001:2008 | 100CN155621736 |
| 499 | Innovative Engineering Company Ltd. | ISO 9001:2015 | 100CN155611734 |
| 498 | Innovative Engineering Company Ltd. | ISO 9001:2008 | 100CN155611734 |
| 497 | Bashir Ahmed Dost Muhammad Contracting (BDM) Est. | ISO 18001:2007 | 300CN150601708 |