To run a business in UAE Mainland, you will need to register a company entity with in one of the UAE DED (Department of Economic Development). They will then give you a business license to start a business in UAE.
Limited Liability Company is a common company form in the UAE mainland. Investors can set up an Limited Liability Company with a minimum of 2 shareholders and a maximum of 50 shareholders. The major shareholder (51 per cent of the company’s ownership) is owned by UAE National Sponsor and the remaining 49 per cent can owned by foreign investors.