Were you able to find the right 2 Providers within user-interface ? If you're also a provider of user-interface and you're not featured in the business directory yet, you can always Add an entry for free.
The results list for user-interface in Raleigh. You can find the best user-interface vendors and providers in Raleigh in the Raleigh Business Directory. Currently there are 2 companies registered in the Raleigh business directory under user-interface.