- How long has the company been established?
- How much experience do they have providing translation services for the language you need?
- How much experience do they have providing the kind of interpreting service you need?
- What testimonials can they provide?
- Who are their existing clients?
- Do they provide services in your region and across the UK?
- What range of extended services do they offer?
And check that they provide interpreters and translators who speak the required language! Prestige Network work in over 200 languages including all of those on Language9.com.