Microsoft Xbox related questions are not supported on this forum. It's better to reach out to experts in a dedicated forum over here:
Microsoft Developer Account device limit for Xbox One
Our company currently has an Xbox dev account - problem is that we have grown A LOT in the past 6 months and we're finding that with the cap of 3 it's becoming difficult to manage the Xboxs for our QA with our different clients - is there a way to have a higher amount of Xboxs on our dev account than 3? (ex. we're needing more than 3 people to test with xbox in the same time frame).
We just need more devices allowed because it doesn't seem like we're able to sign up for another developer account since it's linked to our actual business so when we try to register a second account it's showing an error like "duplicate entity".
Thanks!