job presentation about company

I am invited to give a 10 min presentation as part of the second round of a job interview. I was told that the topic is the company itself (marketing agency) where I am applying for the job. I am a bit worried that I won't be able to tell them anything they do not know yet, or worse that they'll know more about it then I do. Any suggestions on what kind of angle to take, or what to concentrate on to avoid this?