Hello Wendy -newquay-h,
Welcome to the Community page,
So there is a few ways to find your company id number in Quickbooks, You can either
when logged on to your account if you click the cog wheel>account and settings>billing and subscription it will show you your company id number there for you.
or
If you have a windows pc and logged into your account on the dashboard, if you hold down ctrl alt ? all together it will pop it up
If you have a apple pc and logged into your account on the dashboard, if you hold down ctrl opt ? all together it will pop it up.
