Teams meeting invitations with multiple sub company logos.

cjshively 

Hi,
I was struggling with this to! But I found a creative solution that worked for us. I removed the logo from the Teams admin so there will be no logo by default. After that I created transport rules in Exchange online that adds a 'disclaimer' (this supports HTML so you can add images) when the following conditions are:
Apply this rule if:
the message type is: Calendaring
and
The subject or body includes: (this is in Dutch but you don't want to add this logo to all calendar invites) add a line of text thats in a Teams meeting invite by default like 'Join Microsoft Teams Meeting'
and

The senders domain is: companyA.com

Do the following: 
Append the disclaimer: (the <br? is there so the logo isn't attached underneath the line in the invite but you will see for yourself)<br><br> <IMG src="https://image.example.com/logox.png" alt="Company A">

You can make multiple rules with different domains and disclaimers. Or even add more conditions.

It was an old question but maybe still relevant for you or other admins.