In order to choose an IT support team, choose the requirements for which you need the team.  Different business may have different purpose for hiring their IT support teams.  Some IT support companies may provide full IT support for your company on the other hand some IT support companies may provide partial business IT support for your company.  Electrical surges, fire, water, computer virus, accidental deletion – et cetera factors may cause data loses and if your business is something – where data is highly important then you should consider hiring an IT support company that has experiences in this area.