| arolygydd Aramco | QM01/QM02/QM03/QM04/QM05/QM06/QM07/QM08/QM09/QM12/QM14/QM15/QM30/QM31/QM35/QM41 |
| Arolygydd cotio | Lefel NACE Ⅱ; NACE Lefel III; Lefel SSPC Ⅱ; SSPC Lefel III. |
| arolygydd API | API510/API 570/API 580/API653/API SIFE |
| Archwiliwr | Archwiliwr API Ch1; archwilydd yr IRCA |
| arolygydd Weldio | CWI/SCWI/CSWIP3.1/CSWIP 3.2/IWI |
| Peiriannydd weldio | IWE |
| arolygydd NDT | ISO 9712 UT/MT/PT/RT/PAUT Lefel II/lefel III; ASNT UT/MT/PT/RT/PAUT Lefel II/lefel III; PCN UT/MT/PT/RT/PAUT Lefel II/lefel III. |
| Arolygydd Awdurdodedig ASME | AI |
| Tystysgrif Arall | CompEx; archwilydd QMS ISO 9001; archwilydd EMS ISO14001 |
