How to check my new employer in Dubai?

Hello everyone! I am coming to Dubai for the second time. First time, I didn`t have luck to find a job and stay. I hope this time will be different. I am negotiating with my potential employer to come to Dubai and start to work for him. Everything is realistic. Not big salary, hard work. Actually, I want to check the company. I want to get more information than from profile. For example, date when it was founded or some things like that. Can somebody refer me to some web - site or institution with this kind of data? Can I ask for some documentation and what to look at? For example in my country there is government site with all information about companies and their owners. We can search either on reg.number or name. Is their something like that in the UAE? Thank you in advance