I had a note from UBIS, a pro-profit school that is - correctly - not placed in the top ranks of business schools. It lacks meaningful international accreditation, and does not have national state accreditation in any of the European countries where it operates.

The school claims that it has a degree with regional US accreditation through the University of the Potomac, a for-profit US school which has been accreditation by the Middle States Commission on Higher Education. I doubt that many UBIS alumni actually hold Potomac degrees, but it's worth stating that Potomac is currently on probation for failing to meet standards of "planning and resource allocation, institutional resources, institutional assessment, and assessment of student learning." https://www.insidehighered.com/quicktakes/2014/07/09/new-england-mid-atlantic-accreditors-place-colleges-probation