Hi @Kurt Grotz ,
Welcome to the community!
Business Class can work with multiple teams but some functionality varies if your teammates are not in Trello Business class member.
Please visit the below link and read carefully!
@Kurt Grotz mostly what people on the free Trello plan use teams for is actually something you can do using collections in Business class anyway, so you might find you don't actually need multiple teams:
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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