There are three options to register a company in uae.
1. uae resident company - with uae national holding at least 51% ownership in the company
2. free zone company - with 100% ownership allowed to foreign investors. Free zones are geographically specified areas with different laws and regulations insulated from law outside the free zones.
3. offshore company - non-resident uae company which are only allowed to have business dealings outside uae though allowed to have bank account in uae.