An interesting website, worth checking out, is Punch & Brodie. They produce corporate puppets both live and for video production and seem to have done a wealth of work for many companies in the United States.
They believe puppets have been used successfully in corporate videos for many reasons: Puppets reflect positive, universal qualities. They can act in ways that would not be believable or acceptable from actors. They hold people's attention. They are endearing, and thus more appealing. They are easy to identify with. They are non-threatening. They are visually interesting. They create morable images. Puppets are most effective when the character is involved in a believable conflict that centers around the objective. You get your point across!