The questions are a little bit vague but you further specify these questions in your advertizing thread
https://www.offshorecorptalk.com/threads/business-company-europe-ch-de-pt-at-gr-others.45218/
You can change the company activity anytime if that activity isn't a regulated one - that is, if licence or prior approval isn't required. For activities you specified in advertizing thread licence isn't required - except if you do not trade with dual use goods and technologies or your end-user isn't a specific one particularly regarding wholesale trade of electronic and telecommunication equipment and their components and wholesale of computers, peripheral equipment and computer software.
Majority of countries enforces different types of UBO registries as well as administrative and criminal penalties for not declaring or presenting false information regarding UBO.
For instance, PSC (people with significant control) registry in UK is public while in Switzerland there isn't - yet - public and central UBO registry but companies limited by shares are obliged to establish and maintain Share registry. For other company types in Switzerland, nominal ownership data is public in commercial registry.
After company is formed or bought, UBO need to be declared to financial institutions and public authorities. If failed to comply, both legal and natural person will be reported with suspicion for plethora of AMLD infarctions.
Nominee structures may be used for ownership and management. Even by AML standards, nominee structures may be perfectly legal and legitimate. But, those structure will add complexity, legal, control and cost layers. Above all, data sets - in the end, people with their data - can't have differences and intersections for nominee structures to securely operate.
Hence, if you have appropriate non used and non compromised data sets, you have the answer to your questions.
