Is dynamic display of company logo possible in SRM?

Can anyone provide any ideas about dynamically displaying a company logo in SRM? For instance, instead of displaying a single company logo to every user, displaying a different logo based on company code, or some other user attribute?

I suspect there would be some change to templates, maybe with some business HTML involved?

We are running SRM 5.5 with integrated ITS.

Thanks and regards,

Nick Simon