google tier 2 sponsor list and u will get home office latest version of those licensed to sponsor migrants. I notice the list changes weekly.
http://www.bia.homeoffice.gov.uk/siteco ... ofsponsors
this is the latest version (26/11/2010)
so if you see a vacancy, check if the employer is on the list before you apply and make it clear in your application you require sponsorhip. I have done this for months and it paid off. there is no point applying for a vacancy and getting the job only to be told they are not licensed and they are not prepared to apply for you....waste of your time. hope this helps.good luck!