OFeed will always bring your default company, unless you specify a data entity in the URL with added "?cross-company=true"
For example:
OFeed URL: "Name.Dynamics .com/data/customers?cross-company=true"
Unfortunately, "cross-company=true" does not work directly after "/data" (I mean /data?cross-company=true)
You have to do OFeed for each entity you need separately :/
It's a little more work, but anyway it works!