that probably has a simple answer.

I have 2 companies that will need to use the same Intranet. I understand I can create user groups and adjust permissions to allow 1 company access to a particular set of pages and another company access to another set of pages (or both companies access to the same pages).

Here is the question: Although both companies are owned by same person (my boss), they want their own distinct logos for each company to view. So basically some users would want to see Logo A at the top of the page and some users would need to see Logo B, although they all need to share the same amount of data (mostly).

Is there a simple way to do this (that I just cannot find)? I can't tell you how much I appreciate any tips or hints. Thank you, thank you, thank you.....