PF: Can a company be registered under the name of a Postdoctoral Fellow during their fellowship?

A company can be opened, but the researcher will have to negotiate part-time work with the host organisation and the project officer to be able to devote time to the company.

Moreover, the MSCA PF contract  (full-time-equivalent) will not be accepted as eligible by auditors if the researcher has an additional contract with their own company.