Start by visiting the official ADNOC Supplier Hub. If you don't have an SAP Ariba account, you will need to create one. This account is your gateway to submitting your application and managing your future interactions with ADNOC. The platform's user manual clearly states that the first step is to "Get Started" on the homepage.
If you are looking for specific supplier information, I can try to find recent reports on ICV-certified contractors if you tell me your industry (e.g., engineering, IT, logistics). adnoc approved vendor list pdf
Prepare these documents in digital format before starting your application: Start by visiting the official ADNOC Supplier Hub