Virtual Companies do they exist in Pharma????

Last week and till today I had bit hectic time in office and after our work was done was having chat with my colleague regarding the existence of virtual companies in both Pharma and biopharma domain. At this point of time what is like forming a virtual company, do we have any success stories of virtual pharma companies till date? How many existed before and after the dot com era? What are the ways these companies are able to get there venture funding?