In the context of UK immigration, a Certificate of Sponsorship (CoS) is a document issued by licensed sponsors to enable skilled workers to apply for a Tier 2 (General) visa. Employers who are licensed sponsors can assign a CoS to prospective employees from outside the European Economic Area (EEA) and Switzerland.  
Visit: https://www.visasimple.com/certificate.html
         
				
					
                                        
                                        
                                        
         
         





