Best Practices for Setting Up Clay Accounts When Managing Multiple Clients

Hey everyone - I'm new to the Clay community and just launched my GTM Agency. I have some clients who need to get their data cleaned up before we can start executing some outbound motions. I have a quick question on account setup and structure. For those who are using Clay on behalf of multiple clients, are you building everything under one main account or are you standing up a new Clay account for each unique client? Or maybe there's a different strategy all together. Thanks in advance!